Abstract:
Rhaphidophora latevaginata M.Hotta, a neotenic, shingling, climbing aroid, hitherto considered a Bornean endemic, has recently been found and collected from the southern part of the east coast of Peninsular Malaysia (Johor: Kota Tinggi and Mersing), where so far it appears to be restricted to kerapah and the drier (raised podzol) facies of seasonally inundated peatswamp forest. This discovery of R. latevaginata takes to 18 the number of Rhaphidophora known to occur in Peninsular Malaysia, of which three are endemic. An updated description of R. latevaginata, a key to the Rhaphidophora species of Peninsular Malaysia, and a plate illustrating the diagnostic characters of those with shingle-stage juveniles is presented. A brief note on the significance of the new record with regard the Riau Pocket is made.   

Abstract:
Scindapsus lucens Bogner & P.C.Boyce is a species of considerable horticultural potential, arguably rivalling the commercially important S. pictus, originally described from cultivated material of unknown provenance and only later found wild in Sumatera. It has recently been discovered and collected from several localities in southern Peninsular Malaysia, representing both a new record for Malaysia, and through clonal propagation via various tissue culture techniques would supply a sustainable potential source of a local commercial ornamental horticultural product. An enlarged description of S. lucens, and a key to the Peninsular Malaysian Scindapsus are offered. A plate illustrating the diagnostic characters of S. lucens is given.

Abstract:
A new species of Begonia (Begoniaceae), B. droopiae Ardi, is described from the Indonesian island of Sumatra. It belongs to Begonia sect. Reichenheimia and is a limestone endemic in the Sawah Lunto District. Its IUCN threatened category is considered to be ‘Vulnerable’.

Abstract:
Endiandra trees are not frequently encountered in the forest in Indonesia. Recent exploration in Waigeo Island resulted in the collection of three species of Endiandra. All three species were collected for the first time from Waigeo Island. The three species are restricted in distribution to eastern part of Indonesia (Papua Province) and Papua New Guinea. Key to the species and species description are provided.

Abstract:
Five species of Marasmius were encountered from forest surrounding Pa’raye village at Kayan Mentarang National Park, East Kalimantan; three of them are described as new taxa (1 new species and 2 new varieties).The five species of Marasmius are M. cf. purpureostriatus, M. guyanensis,
M. coklatus var. mentarangensis, var. nov., M. caryote var. parayeensis, var. nov., and M. gypseus, sp. nov. Comprehensive descriptions, illustrations, and comparison with similar taxa are presented.

Abstract:
Descriptions of Elatostema sessile J.R.Forst. & G.Forst and E. subscabrum H.Schroet. (Urticaceae) are provided to clarify the morphological differences between these two species. The lectotype of E. subscabrum H.Schroet. (Urticaceae) is here selected.

Abstract:
The subfamily Ptychanthoideae of the family Lejeuneaceae (Hepaticae) in West Java is still poorly known. A study of Ptychanthoideae in this area reveals the occurrence of 26 species, in 8 genera: Acrolejeunea (Spruce) Schiffn. (3 species), Archilejeunea (Spruce) Schiffn. (1 species),
Lopholejeunea (Spruce) Schiffn. (10 species), Mastigolejeunea (Spruce) Schiffn. (3 species), Ptychanthus Nees (1 species), Schiffneriolejeunea Verd. (2 species), Spruceanthus Verd. (2 species) and Thysananthus Lindenb. (4 species). Mastigolejeunea indica and Thysananthus minor are newly
reported for Java. The altitudinal and geographical ranges of the species of Ptychanthoideae from West Java are presented as well as a key to the species and an assessment of their phytogeography. It appears that the species are rather widespread; none of the species are endemic to Java or
western Malesia. The widespread distribution of the species is probably due to their dispersal by spores, which may be easily carried by the wind over long distances, and by the rather old geological age of the group.

Abstract:
The occurrence of Phaius takeoi (Hayata) H.J. Su (Orchidaceae), previously only known in mainland China, Vietnam and Taiwan, is here reported for Thailand and Myanmar.

Abstract:
Curcuma vitellina, a new species of Zingiberaceae from Tây Nguyên, Vietnam, is described, illustrated and compared to its closest ally, C. pierreana.

Abstract:
Two new combinations are made here: Haplopteris hirta (Fée) S.Linds. And Haplopteris angustissima (Holttum) S.Linds.

Abstract:
Alocasia jiewhoei V.D.Nguyen, a new species from Cambodia, is described and illustrated.

Abstract:
New combinations are made for the seven species of Dalrympelea (Staphyleaceae) from Malaysia that were previously included in Turpinia. Dalrympelea pomifera Roxb. is distinct from D. sphaerocarpa (Hassk.) A.T.Nor-Ezzawanis and does not occur in Malaysia and Turpinia ovalifolia Elmer from the Philippines is distinct from D. trifoliata (Ridl.) A.T.Nor-Ezzawanis.

Abstract:
A new species, Cheilocostus borneensis, is described. Specimens were collected in Sarawak in 1987 and Kalimantan in 2000, but only intensified surveys of gingers in Sarawak in 2002-2004 provided sufficient collections to recognize the new species, which is here described and illustrated. It is closely related to the widespread C. globosus from which it differs by the chocolate-brown sheaths, absence of axillary shoots on vegetative stems, larger leathery leaves, and by its calyx that is not prickly.

Abstract:
Three new species of Begonia (Begoniaceae) are described from Nepal. All three species (Begonia nuwakotensis S. Rajbhandary, Begonia panchtharensis S. Rajbhandary and Begonia taligera S. Rajbhandary) belong to Begonia section Platycentrum, and they increase the number of Begonia species known from Nepal to 22. All are considered to belong to the IUCN threat category VUD2.

Abstract:
Genetic variation within and between populations of Scutellaria slametensis Sudarmono & B.J.Conn and S. discolor Colebr. on Gunung Slamet (Jawa Tengah, Indonesia) are evaluated by allozyme electrophoresis. Gels stained by 4 enzyme systems, namely, Aspartate aminotransferase (Aat), Esterase (Est), Malate dehydrogenase (Mdh) and Peroxidase (Per), were used to evaluate the number of polymorphic loci. The mean of total number of observed alleles per locus (A), mean of total number of effective alleles per locus (Ae), percentage of polymorphic loci (Pp%), and expected genetic heterozygosity (He) have been generated as parameters of genetic variation. The interpopulation genetic differentiation (FST) and estimated geographic distance between populations were used to evaluate the correlation between genetic differentiation and geographic effect. It was found that S. slametensis is genetically distinct from S. discolor (D = 1.4572). The mean genetic variation of S. slametensis (Pp = 75 %, A = 2.00, HE = 0.450) is greater than that of S. discolor (Pp = 25 %, A = 1.25, HE = 0.125). Almost all loci of the latter species are monomorphic and homozygotic, especially population 9 near Baturaden (Pp = 0%; HE = 0; Allele frequencies all = 1). There is a moderately high degree of variation between populations of these two species (FST = 0.585, SE ± 0.092), whereas within-population variation is low (1–FST = 0.415). Both species are out-breeding (at subpopulation level: FIS
= -0.973, SE ± 0.015; and population level: FIT = 0.180, SE ± 0.183), with low levels of gene flow within and between populations (Nm = 0.249, SE ± 0.065). The chromosome number of S. slametensis and S. discolor is 2n = 24.

Abstract:
Polyalthia lasioclada I.M. Turner, sp. nov. is described. It is a small tree known from the Mount Kinabalu area of Sabah.

Abstract:
A revision of the Schismatoglottis nervosa Ridl. species complex is presented. Ten species are recognized, of which three species are pre-existing (S. nervosa, S. elegans A.Hay, and S. brevicuspis Hook.f.) and seven are novel and described here (Schismatoglottis adoceta S.Y. Wong, S. linae S.Y. Wong, S. matangensis S.Y.Wong, S. simonii S.Y.Wong, S. tessellata S.Y. Wong, S. turbata S.Y. Wong, and S. ulusarikeiensis S.Y. Wong.) The S. nervosa species complex is readily delimitated by the pungent terpenoid smell when the vegetative tissues are crushed, and by the presence of longitudinally ridged petioles. A key to the S. nervosa species complex is presented and all species are illustrated.

Book Review

Abstract:
Fieldwork in Sarawak continues to reveal further novelties in the genus Schismatoglottis Zoll. & Moritzi, notably in the Asperata and Multiflora Groups (sensu Hay & Yuzammi, 2000). The second author collected a new Schismatoglottis species in Sarawak belonging to the Multiflora Group. This is here described and illustrated and included in additions to the key to Bornean Schismatoglottis published by Hay & Yuzammi (2000).

Abstract:
A taxonomic account of the palm genus Livistona is presented. Thirtysix species are recognised. Taxonomic and nomenclatural changes are applied to a number of species. Livistona rotundifolia (Lam.) Mart. is treated as a highly variable species, with L. rotundifolia var. luzonensis Becc., L. rotundifolia var. microcarpa (Becc.) Becc., L. rotundifolia var. mindorensis (Becc.) Becc. and L. robinsoniana Becc. placed as synonyms; L. fengkaiensis X.W.Wei & M.Y. Xiao is placed under L. speciosa Kurz; Livistona chinensis var. subglobosa (Hassk.) Becc. is placed under L. chinensis (Jacq.) R.Br. ex Mart.; Livistona tonkinensis Magalon is placed under L. saribus (Lour.) Merr. ex A.Chev.; and Livistona kimberleyana A.N.Rodd is placed under L. lorophylla Becc. A neotype is proposed for L. saribus, and lectotypes are chosen for L. altissima Zoll., L. beccariana Burret, L. hoogendorpii Hort. ex Teysm. & Binn. ex Miq., L. olivaeformis (Hassk.) Mart., L. subglobosa (Hassk.) Mart., L. tonkinensis Magalon, L. woodfordii Ridl., and Chamaerops biroo Siebold.

Abstract:
The Asian species of Lepidopilum (Brid.) Brid. are reviewed. Hitherto, L. novae-guineae E.B. Bartram is the only remaining Asian species in the predominantly neotropical genus. However, examination of the type specimen of this taxon proves it to be a synonym of Dimorphocladon borneense Dixon.

Abstract:
Seven new species are described from Sarawak, Borneo: two, Begonia payung S.Julia & Kiew and B. sarangica Kiew & S.Julia, are endemic to Bukit Sarang in Ulu Sungai Kakus, Tatau District; and five, B. juliasangii Kiew, B. meriraiensis S.Julia & Kiew, B. nagaensis Kiew & S.Julia, B. piring Kiew & S.Julia and B. rhodochaeta S.Julia & Kiew, are endemic in the Ulu Merirai area in the Tatau District.

Abstract:
While revising the genus Habenaria Willd. for the Flora of Thailand the first author of this paper came across herbarium material of an unusual terrestrial orchid from Khao Yai National Park in central Thailand with small Liliaceae-like flowers. A subsequent search revealed that the same plant had been noted by Kerr (1969) in Laos and was later illustrated by Seidenfaden (1992: 70). A third collection, also in central Thailand, was made by the second and third authors of this paper. As the plant does not match any currently known species it is here described as new. 

Abstract:
A new combination of Etlingera fenzlii (Kurz) Škorničk. & M. Sabu (Zingiberaceae) based on the basionym, Amomum fenzlii Kurz, is proposed. Recent exploration on Great Nicobar Island resulted in the collection of this endemic species. An amended description with a colour plate is provided and a lectotype is designated.

Abstract:
No abstract

Abstract:
This paper gives an overview of the genus Eugenia, with an emphasis on species found in the Philippines. In particular, the generic segregate Jossinia, adopted by Merrill for those species, is re-evaluated in the light of more recent research. This research does not support inclusion of species from the Asia-Pacific region in a segregate genus. Consequently, the Philippines species are here assigned to Eugenia and two new names, Eugenia uminganensis and E. inaequisepala, are proposed.

Book Review

Abstract:
Rhododendron sojolense Argent (Ericaceae) is described as a new species of subgenus Vireya section Euvireya from Mt. Sojol on the northern arm of the island of Sulawesi, Indonesia. Comparisons with related species are made.

Abstract:
A further five species and two subspecies of Syzygium, and one subspecies of Tristaniopsis (Myrtaceae) are described as a precursor to the account of the family in the Tree Flora of Sabah and Sarawak. Shorea contorta Vidal is here recorded form Borneo for the first time.

Abstract:
A new Philippine species of Rafflesia from the Sierra Madre Mountain Range of northeastern Luzon is described. Rafflesia aurantia is the ninth presumed endemic species thus far described from the Philippines, and the fifth reported from the island of Luzon. This species is apparently allied to R. tengku-adlinii of Sabah - both are small-sized and their overall color is similar. Biogeographical considerations and the morphological differences between our new species and R. tengku–adlinii, however, strongly support the recognition of two distinct evolutionary lineages/species. The conservation status of the fast disappearing lowland dipterocarp forests in northeastern Luzon, particularly the type locality in the Quirino Protected Landscape (QPL) is also discussed and suggests that the new species may be highly threatened.

Abstract:
Seven new Begonia species are described from northern and western Sumatra: Begonia gracilicyma Irmsch. ex M.Hughes (unplaced to section), Begonia laruei M.Hughes (sect. Petermannia), Begonia multijugata M.Hughes (sect. Petermannia), Begonia pasamanensis M.Hughes (sect. Reichenheimea), Begonia puspitae Ardi (sect. Reichenheimea), Begonia tuberculosa Girmansyah (sect. Platycentrum) and Begonia verecunda M.Hughes (sect. Bracteibegonia). The conservation status of each species is assessed.

Abstract:
Geodorum citrinum Jacks. is a new record for the orchid flora of Vietnam.

Abstract:
A new moss species collected from Peninsular Malaysia, Fissidens benitotanii Z.Iwats., K.-T.Yong & Tad.Suzuki is described. The species belongs to subgenus Fissidens section Fissidens. Most of the members in sect. Fissidens have smooth laminal cells, except for a few species, which included this newly described species, possess unipapillose laminal cells. Fissidens benitotanii is easily distinguished from other Fissidens species in the region by the following characteristics: narrowly lanceolate leaves with shortly excurrent costa, thin limbidia that disappear near leaf apex, and unipapillose laminal cells with distinctive sharp papilla.

Abstract:
Podostemaceae is an ecologically and morphologically unusual aquatic plant family. By examination of new collections from Thailand, we describe seven species, two of which are new species assigned to Terniopsis of Tristichoideae (T. chanthaburiensis, T. minor), four are new species assigned to Hydrobryum and Polypleurum of Podostemoideae (H. phetchabunense, P. insulare, P. prachinburiense, P. sisaketense), and one is Zeylanidium lichenoides rediscovered. In total, two subfamilies, 10 genera, and 42 species with four varieties occur in Thailand. A key to all the species is provided.

Abstract:
During a botanical expedition in 2007 to the Gunung Tera area in Kelantan, NE Peninsular Malaysia, three new species of Gesneriaceae were discovered: Henckelia kelantanensis Kiew, H. pauziana Kiew, and Ridleyandra kelantanensis Kiew.

Abstract:
A review of the genus Plocoglottis in Thailand is presented. Five species are recognised. Four of them, P. javanica, P. lowii, P. quadrifolia and P. gigantea, are widespread in Malesia and have their northernmost limit of distribution in Peninsular Thailand, and P. javanica is also known in Vietnam. The fifth, P. bokorensis is also found in Cambodia, Laos and Vietnam and is in Thailand known from a few widely scattered localities in the central, eastern, southeastern, southwestern and northern regions.

Abstract:
A new Nepenthes species, N. pitopangii, from Sulawesi Tengah, is described.

Abstract:
Gardenia tubifera sensu Corner is revised over its entire range in Southeast Asia. It is a heterogeneous complex of three distinct taxa, G. elata Ridl., G. subcarinata (Corner) Y.W.Low (elevated from varietal status) and G. tubifera Wall., mainly distinguished by calyx form, fruit size and ecological distribution. Two new varieties are described, G. elata var. longipedicellata K.M.Wong (from the Philippines) and G. subcarinata var. sumatrana Y.W.Low (from Sumatra). A key for identification, descriptions, nomenclatural notes, illustrations and exsiccatae examined.

Abstract:
Bothriochloa Kuntze (Poaceae) has 3 species in Thailand: B. bladhii, B. ischaemum, and B. pertusa. A key, descriptions, and illustrations are provided.

Abstract:
Hemisorghum C.E. Hubb. (Poaceae, Sorghinae) has a single species in Thailand: H. mekongense (A. Camus) C.E. Hubb. It occurs from Burma to Laos and Cambodia. In Thailand it is rare along riverbanks. A lectotype is designated.

Abstract:
The moist chamber culture technique was employed to detect myxomycetes (plasmodial slime molds) associated with the bark surface of living trees. Twenty-five species of myxomycetes in 13 genera were identified from moist-chambered bark samples collected at three localities in Singapore. Seventeen species are new records for Singapore. One species, Comatricha pseudonigra was previously known only from Mitchell River National Park in the state of Victoria, Australia.

Abstract:
Ten new species of Impatiens (Balsaminaceae), I. adenioides Suksathan & Keerat., I. charisma Suksathan & Keerat., I. daraneenae Suksathan & Triboun, I. doitungensis Triboun & Sonsupab, I. jiewhoei Triboun & Suksathan, I. oreophila Triboun & Suksathan, I. ruthiae Suksathan & Triboun, I. sirindhorniae Triboun & Suksathan, I. spectabilis Triboun & Suksathan, and I. tigrina Suksathan & Triboun from Thailand are described and illustrated.

Abstract:

Abstract:
The history of the name cananga in botanical nomenclature is outlined and clarified. Cananga odorata (Lam.) Hook.f. & Thomson, is lectotypified. Cananga brandisiana (Pierre) I.M. Turner is proposed for Cananga latifolia (Hook.f. & Thomson) Finet & Gagnep., nom. superfl. The infraspecific taxonomy of Cananga odorata (Lam.) Hook.f. & Thomson is reviewed and the cultivar group names for plants producing ylang-ylang and cananga oil are corrected.

Abstract:
The miscellaneous notes on Cucurbitaceae comprise: (1) the description of a new species in Kedrostis from Peninsular Malaysia; (2) three new combinations in Neoachmandra from Africa, five new combinations in Pilogyne from New Guinea and the Pacific; and (3) a modern description of Zehneria baueriana, from Norfolk Isl., western Pacific.

Abstract:
A review of Piptospatha elongata (Engl.) N.E. Br. in Sarawak is presented. The species is shown to comprise three morphologically and ecologically distinct taxa, two of which are new to science and herewith described as Piptospatha impolita S.Y.Wong, P.C. Boyce & Bogner and P. viridistigma S.Y.Wong, P.C. Boyce & Bogner. A new key to Piptospatha is presented and all species of the Elongata group are illustrated. Additionally, new observations on the morphologies separating the Piptospatha elongata Group and P. grabowskii Group sensu Bogner and Hay (2000) are presented.

Book Review 

Book Review

Abstract:
Four new species of Homalomena (Araceae: Homalomeneae) are described from Sarawak. The current supraspecific taxonomy of the genus is reviewed and reasons for not recognizing at this time formal supraspecific units are justified although the need for species groupings is restated. In line with other large, taxonomically intractable groups, informal groups are proposed and circumscribed. All new species are illustrated.

Abstract:
Hapaline celatrix P.C.Boyce, a species known from only two collections and hitherto considered endemic to Brunei, has recently been collected in Gunung Mulu NP. An expanded description for the species, additional ecological notes and the first ever published field photographs are presented.

Abstract:
Four orchids, Appendicula floribunda (Schltr.) Schltr., Bulbophyllum elevatopunctatum J.J.Sm., Cymbidium sigmoideum J.J. Sm., and Dendrochilum bandaharaense J.J. Wood & J.B. Comber are new records for the Orchidaceae of Peninsular Malaysia.

Abstract:
A large number of Thai specimens belonging to the Peristylus tentaculatus complex were examined in the present study. No characters were found to distinguish between the three previously recognised species, Peristylus tentaculatus (Lindl.) J.J.Sm., P. tipuliferus (C.S.P.Parish & Rchb.f.) Mukerjee and P. garrettii (Rolfe ex Downie) J.J.Wood & Ormerod, which are therefore considered as conspecific.

Abstract:
The occurrence of Habenaria mandersii Collett & Hemsl. in Thailand is newly reported. The species was previously only known in Myanmar and the former French Indochina (Cambodia, Laos, Vietnam). It is very similar to H. hosseusii Schltr. and it is here suspected that it has frequently been mistaken for this species in the past. Short notes on the taxonomy of the H. hosseusii–mandersii–dentirostrata Tang & F.T.Wang group are also given.

Abstract:
Polyalthia saprosma I.M. Turner, sp. nov. (Annonaceae), is described from material hitherto confused with P. cinnamomea Hook.f. & Thomson. The new species is recorded from Sabah (Malaysia) and Kalimantan (Indonesia) on the island of Borneo.

No Abstract

Abstract:
Thirty two new species of Bulbophyllum, all from Sulawesi, are described.Names currently in use for various sections of Bulbophyllum are made junior synonyms to older sectional names that have been ignored so far, partly because their taxonomic content, as appears from the suite of species listed with the original descriptions of these sections, was ambiguous. These sectional names are lectotypified and re-instated.

Abstract:

Abstract:
A new species of Musa L. (Musaceae), M. yamiensis C-L. Yeh & J-H. Chen, from Lanyu, Taiwan, is described and illustrated. Musa yamiensis is closely related to M. insularimontana Hayata, but differs from the latter in subhorizontal inflorescence, yellow-green with pink at apex bracts, 4 flowers in a bract in 1 row, and the size and structure of flowers.

Book Review

Abstract:
Two new species of Alocasia, A. chaii P.C.Boyce and A. infernalis PC.Boyce from Kapit Division. Sarawak, Malaysian Borneo, are described and included into an updated key to Bornean Alocasia. Both species are illustrated. 

Abstract:
Nine taxa of the genus Macromitrium (Bryopsida, Orthotrichaceae) with gymnostomuous capsules in East Asia, including Macromitrium benguetense R.S. Willams., M. brevituberculatum Dix., M. formosae Card., M. gymnostomum Sull. & Lesq., M. heterodictyon Dix., M. holomitrioides Nog., M. robinsonii R.S. Williams, M. schmidii C. Muell., and M. taiheizanense Nog., are taxonomically revised. Macromitrium robinsonii and M. brevituberculatum are treated as new synonyms of M. gymnostomum, and M. benguetense as a new synonym of M. schmidii. Neotype was designated for M. schmidii, and types were selected for M. heterodictyon, M. Macromitrium schmidii var. macroperichaetialium S.L. Guo & T. Cao was described as a new variety. A key to the seven accepted gymnostomous species of Macromitrium in East Asia is also given. 

Abstract:
Hoya verticillata (Vahl) G.Don s.l. is a climbing epiphyte belonging to the family Apocynaceae. At present, the taxonomic status of this species in Thailand is still uncertain due to the great variability of size, shape and colour of leaf and flower. Morphological variations were explored in 500 fresh plants collected from 50 sites throughout the country. The collected specimens represent the H. verticillata complex, including two polymorphic species, namely H. verticillata s.l. and closely related species, H. rigida Kerr. Based on qualitative macro- and micro-morphological characters, the H. verticillata complex can be divided into nine groups. They can be distinguished by leaf shape, leaf base, venation pattern, leaf indumentum, and shapes of sepal, corona and corpusculum. Group I matched with the characteristics of H. rigida Kerr, which has ovate leaves with cordate base, 3-5 prominent nerves running from base to apex; indumentum absent on the abaxial surface; and lanceolate sepals. In contrast. Group II is an unidentified taxon that is close to H. verticillata (Vahl) G. Don var. citrina (Ridl.) Veldkamp. It is charaterized by broad ovate leaves with cordate base, 3-5 prominent nerves running from base to apex; and narrowly oblanceolate-oblong corpusculum. Groups III and IV have distinctly different vegetative characters and do not correspond to the previously described varieties of H. verticillata.  Their leaf venation is acrodromous, with 3 prominent nerves running from leaf base parallel to the midrib and reaching the apex, but they are different in their shape of leaf and coronal scale.  Group III has ovate leaves with subcordate base and elliptic coronal scale, while Group IV has elliptic-oblong leaves with cuneate base and ovate-lanceolate corona. Groups V-IX are still weak validity, having slightly discontinuity in leaf shape, base and venation; and shape of coronal scale.  They are treated in this paper as variable groups within H. verticillata var. verticillata.    

Abstract:
Fifteen Begonia species are described from limestone hills in the Kuching Division, Sarawak, Borneo, of which nine are new: B. andersonii Kiew & S.Julia, B. burttii Kiew & S.Julia, B. chaiana Kiew & S.Julia, B. corrugata Kiew & S.Juha, B. kiamfeeii Kiew & S.Julia, B. paoana Kiew & S.Julia, B. penrissenensis Kiew & S.Julia, B. punchak Kiew & S.Julia and B. serapatensis Kiew & S.Julia. The distribution of these begonias confirms that the Bau limestone flora is phytogeographically distinct and shows that the Padawan Serian and Penrissen limestone areas also form two distinct phytogeographic areas and that there are few species shared between the three areas. 

Abstract:
Five new genera of Grammitidaceae (Filicales) are described: Ctenopterella Parris (12 species), Dasygrammitis Parris (six species). Radiogrammitis Parris (28 species). Tomophyllum (F..Fourn.) Parris (22 species) and Xiphopterella Parris (six species).  Oreogrammitis Copel. (Grammitidaceae) is re-established (110 species). New combinations are made in all six genera. Synonymy is provided, types are indicated, including those of synonyms, and lectotypes are chosen for some names.  Three new species are described from Peninsular Malaysia, Oreogrammitis malayensis Parris, O. kunstleri Parris and Xiphopterella gracilis Parris. 

Abstract:
Two later homonyms in Polyalthia are provided with new names: Polyalthia sinclairiana I-M.Turner replaces P. macropoda Kinig and Polyalthia dolichopoda I.M.Turner replaces P. tenuipes Merr. (1922, non Merr. 19'I2). The combination Dasymaschalon dasymaschalum (Blume) I.M.Turner. which is not a tautonym under the current code, is made. It replaces the superfluous Dasymaschalon blumei Finet & Gagnep. A new combination for Dasymaschalon dasymaschalim var. wallichii is also made.  Lectotypes are proposed for Polyalthia macropoda King, Polyalthia tenuipes Merr. (1922), and Unona dasymaschala Blume var. wallichii Hook. f.& Thomson. 

Abstract:
Aridarum crassum S.Y. Wong & PC. Boyce is described as a new species from Sarawak, Malaysian Borneo. The existing key to the genus Aridarum Ridl. is amended to include the new species. 

Book Review 

Book Review