Year of Publication: 2020, Vol. 72 (2)
Flora of Singapore precursors, 18: Change of rank for two species in Polygalaceae and Cornaceae [Page 133 - Page 134]
Alangium hirsutum Bloemb. (Cornaceae) and Xanthophyllum amoenum Chodat (Polygalaceae) are reduced to varieties of Alangium longiflorum Merr. and Xanthophyllum stipitatum A.W.Benn. respectively.
Flora of Singapore precursors, 20: Notes on the genus Piper (Piperaceae) from Singapore [Page 135 - Page 141]
Nomenclatural notes on six species of Piper occurring in Singapore are provided. Nine names are typified. Additional relevant information on the species is also included.
Flora of Singapore precursors, 21: New records of Euphorbiaceae for Singapore [Page 143 - Page 158]
Microcos antidesmifolia (Malvaceae-Grewioideae), a poorly known species in Singapore [Page 159 - Page 164]
A poorly known species in Singapore, Microcos antidesmifolia (King) Burret, is described and illustrated for the first time. In Singapore, it is known from the type variety, Microcos antidesmifolia (King) Burret var. . Notes on distribution, ecology and conservation status are given. This species is assessed as Critically Endangered for Singapore. A key is given for the five Microcos L. species in Singapore.
Notes on Acer laurinum (Sapindaceae) in freshwater swamp forest in Singapore [Page 165 - Page 172]
Acer laurinum Hassk. was recently recorded as both a new species and genus for Singapore from the Nee Soon swamp forest in the Central Catchment Nature Reserve, but little is known about its biology and ecology. Here, the species is described and notes on its distribution, ecology and proposed conservation status in Singapore are given.
Taxonomic updates to Artocarpus subgenus Pseudojaca (Moraceae), with a particular focus on the taxa in Singapore [Page 173 - Page 213]
The breadfruit genus Artocarpus J.R.Forst. & G.Forst., Moraceae) has 16 species in Singapore, 14 of them native. The following taxonomic changes in Artocarpus subgenus Pseudojaca Trécul, based on recent phylogenetic work, are presented with diagnostic characters. Artocarpus griffithii (King) Merr. is reinstated as distinct from A. lamellosus Blanco (which is called A. nitidus Trécul in the earlier literature), also requiring the reinstatement of the following taxa not found in Singapore: A. borneensis (Merr.) F.M.Jarrett, A. humilis Becc., A. vrieseanus Miq. var. subsessilis F.M.Jarrett and A. xanthocarpus Merr. Artocarpus dadah Miq. is reinstated as distinct from A. lacucha Roxb. ex Buch.-Ham., thereby necessitating the reinstatement of the following taxa not found in Singapore: A. fretessii Teijsm. & Binn. ex Hassk., A. ovatus Blanco, and A. vrieseanus var. refractus (Becc.) F.M.Jarrett. Artocarpus gomezianus Wall. ex Trécul is restricted to the type subspecies, and A. zeylanicus (F.M.Jarrett) E.M.Gardner & Zerega, formerly a subspecies, is elevated to species level. Thirteen lectotypes and two neotypes are designated.
A new species of Polyosma Blume (Escalloniaceae) and notes on a revision of the genus in Peninsular Malaysia and Singapore [Page 215 - Page 231]
Abstract:Twelve species of Polyosma are recognised for Peninsular Malaysia and Singapore, of which only three species are in Singapore. One new species is described, the taxonomy of two species is clarified with five names synonymised, and all names are typified. Provisional conservation assessments are provided for each species.
A revision of the genus Sindora (Fabaceae, Detarioideae) in Peninsular Malaysia and Singapore [Page 233 - Page 251]
Sindora Miq. is a genus of large legume trees found mainly in tropical and subtropical forests from southern China, continental Southeast Asia, and West and Central Malesia. A revision of Sindora in Peninsular Malaysia and Singapore is presented with updated descriptions and distributions. The data are derived from a comprehensive study of herbarium specimens from Peninsular Malaysia and Singapore, together with field observations of individuals growing in natural populations in Singapore. Five species are recorded from Peninsular Malaysia. Four species are recorded from Singapore, all of which also occur in Peninsular Malaysia. Sindora velutina Baker, only recently recorded for Singapore but at the same time noted to be presumed nationally extinct, is reported here as rediscovered. Lectotypes of Sindora siamensis Teijsm. ex Miq. and Sindora velutina are designated here. A second step lectotype is designated for Sindora wallichii Benth. New global-level conservation assessments are proposed for Sindora echinocalyx Prain, Sindora siamensis and Sindora wallichii Benth., while provisional national-level conservation assessments for each species are also reported. Four species of Sindora in Peninsular Malaysia are reported as Least Concern both globally and within Peninsular Malaysia; Sindora siamensis is reported as Least Concern globally but is presumed Nationally Extinct in Peninsular Malaysia. In Singapore all four species of Sindora are reported as Critically Endangered.
Brackenridgea (Ochnaceae) in the Philippines, with notes on foliar nickel hyperaccumulation in the genus [Page 255 - Page 273]
The genus Brackenridgea (Ochnaceae) in the Philippines is revised. Recent field surveys have provided new locality records and ecological and morphological data to distinguish the three Philippine taxa; all are recognised at species level. The new combination, Brackenridgea mindanaensis (Merr.) Fernando is made. Two names are lectotypified and a second step neotypification is made for one name. Foliar nickel hyperaccumulation is confirmed for all Philippine species.
Three new species of Begonia sect. Petermannia (Begoniaceae) from Sandaun Province, Papua New Guinea [Page 275 - Page 284]
Plants without borders: new records of two presumed Thai endemic Gesneriaceae in Laos [Page 285 - Page 290]
Hedychium mechukanum (Zingiberaceae), a new species from the eastern Himalayas, India [Page 291 - Page 297]
New combinations and new and resurrected names in Gaultheria (Ericaceae) [Page 299 - Page 317]
Year of Publication 2020, Vol. 72 (1)
A new species of Nervilia (Orchidaceae) from Singapore [Page 1 - Page 14]
The only species of Nervilia Comm. ex Gaudich. included in national checklists and redlists of the Singapore flora is Nervilia punctata (Blume) Makino. This species is treated as presumed nationally extinct. There are three historic collections from Singapore, all collected by H.N. Ridley during the late 19th and early 20th centuries. However, the identity of these specimens has recently been cast into doubt as the Nervilia adolphi/punctata species alliance has become the subject of taxonomic scrutiny. The lack of visible characters on the existing specimens has so far made it impossible to pinpoint the correct identity of the Singapore specimens. We recently discovered a small population of Nervilia in Bukit Timah Nature Reserve in Singapore, which in our opinion is the same taxon that was collected by Ridley. The plants do not agree with other species in the Nervilia adolphi/punctata species alliance and the taxon is here described as a new species based on the clinandrial tissue surrounding the anther cap as well as the narrow oblong and truncate labellum with curled sides. We currently consider the species to be endemic to Singapore.
Dracaena breviflora (Asparagaceae): an unusual species newly recorded in Singapore [Page 15 - Page 21]
Dracaena breviflora Ridl. (Asparagaceae) is newly recorded here for Singapore. A description and colour plates of this unusual species are included. Provisional conservation assessments of Endangered globally and Critically Endangered in Singapore are proposed.
Sohmaea teres (Fabaceae), a new record for Peninsular Malaysia [Page 23 - Page 28]
A new synonym of Lophopyxis maingayi (Lophopyxidaceae) [Page 29 - Page 32]
Combretum perakense M.Gangop. & Chakrab., described from specimens collected in Perak, Peninsular Malaysia, is here reduced to a synonym of Lophopyxis maingay Hook.f. (Lophopyxidaceae). Lectotypes are designated for three other synonyms of Lophopyxis maingayi.
Eleven new records, three new species and an updated checklist of Begonia from Kalimantan, Indonesia [Page 33 - Page 58]
Four new records of Celastraceae for Brunei [Page 59 - Page 63]
Molecular confirmation of natural hybridisation between Melastoma sanguineum and M. malabathricum (Melastomataceae) [Page 65 - Page 75]
Nomenclatural changes in Zingiberaceae: Haplochorema is reduced to Boesenbergia [Page 77 - Page 95]
The history of Haplochorema K.Schum. (Zingiberaceae) is reviewed, its morphology is compared to Boesenbergia Kuntze and the molecular phylogenetic position is shown in relation to other Zingiberaceae. Based on a comparative analysis of molecular and morphological data, Haplochorema is reduced to Boesenbergia with eight new combinations. A lectotype for Boesenbergia loerzingii (Valeton) K.Larsen ex M.F.Newman, Lhuillier & A.D.Poulsen is designated here.
The long-lost Myanmar endemic Arundina subsessilis (Orchidaceae) found congeneric with the recently described Chinese Thuniopsis cleistogama [Page 97 - Page 107]
Begonia oyuniae (Begonia sect. Monophyllon, Begoniaceae), a remarkable new species from Northeast India [Page 109 - Page 115]
Eugenia bolampattiana (Myrtaceae), a new species from the Bolampatty Hills of Nilgiri Biosphere Reserve, India [Page 117 - Page 123]
Nilgiri Biosphere Reserve in the Western Ghats of Tamil Nadu, India. A detailed description, illustration, colour photographs, phenology, and relevant ecological notes are provided, along with a comparison of the morphologically similar species Eugenia mooniana Wight and Eugenia kalamii Shareef et al.
Rhynchotechum nirijuliense (Gesneriaceae), a new species from Northeast India [Page 125 - Page 129]
Earlier accounts of driftwood of Alstonia spatulata (Apocynaceae) [Page 131 - Page 132]
Year of Publication: 2019, Vol. 71 (2)
Progress on Southeast Asia’s Flora projects [Page 267 - Page 319]
Southeast Asia (Myanmar, Thailand, Cambodia, Laos, Vietnam, Malaysia, Singapore, Brunei Darussalam, Indonesia, Timor Leste, the Philippines and Papua New Guinea) is a region of high plant diversity with an estimated 50,000 flowering plant species. Estimates of plant diversity in the region continue to grow as large numbers of new species are described even though there have been suggestions that there are few new species to be found in some parts of Southeast Asia. It is likely that most estimates of species numbers in the countries of Southeast Asia are too low due to the lack of taxonomic work on groups which have many locally endemic species. Differing collecting densities across the region can profoundly affect our understanding of plant diversity and lead to large underestimates of species diversity in poorly collected countries and regions. Progress on each of the major Flora projects in Southeast Asia, Flora of Thailand, the Flora of Cambodia, Laos and Vietnam/Flore du Cambodge, du Laos et du Viêtnam, Flora Malesiana, Flora of Peninsular Malaysia, Tree Flora of Sabah and Sarawak, Flora of Singapore and Flora of Vietnam, along with floristic research in Myanmar, the only country not covered by at least one of these Flora projects, is discussed. In addition to the formal Flora projects, there is much floristic activity occurring in the countries otherwise covered by transnational Floras.
Quantitative ethnobotany of palms (Arecaceae) in New Guinea [Page 321 - Page 364]
Information content for biological classifications [Page 365 - Page 372]
Shaken vs scraped: floral presentation contributes to pollinator guild segregation in co-blooming Symphionema montanum and sopogon anemonifolius (Proteaceae) [Page 377 - Page 396]
Georg Rumphius’ Herbarium Amboinense (1741–1750) as a source of information on Indonesian plants for Carl Linnaeus (1707–1778) – an Addendum [Page 397 - Page 399]
Flora of Singapore precursors, 16: New records and notes on the plant diversity of Singapore [Page 401 - Page 406]
Flora of Singapore precursors, 17: Clarification of some names in the genus Calophyllum as known in Singapore [Page 407 - Page 411]
A new species of Begonia (Begoniaceae) from the Moluccas, Indonesia [Page 415 - Page 419]
A new species of Begonia, Begonia mufidahkallae Ardaka & Ardi, is described from Sawai, Seram Utara District, Seram Island, Indonesia. The species is endemic to Seram Island and belongs to Begonia section Petermannia.
Notes on the orchids of Bali, Indonesia: six new species records [Page 421 - Page 427]
The identity of Marsdenia parasita (Apocynaceae, Asclepiadoideae) [Page 429 - Page 433]
Free radical scavenging effects of the Philippine endemic medicinal plant Alpinia elegans (Zingiberaceae) [Page 435 - Page 444]
A new species of Hornstedtia and a new species record of Globba (Zingiberaceae) from Palawan, Philippines [Page 445 - Page 457]
Two new Zingiber species (Zingiberaceae) from Sorsogon, Philippines [Page 459 - Page 475]
Three new species of Boesenbergia (Zingiberaceae) from Thailand and Lao P.D.R. [Page 477 - Page 498]
Essential oils composition of nine Curcuma species from Thailand: a chemotaxonomic approach [Page 499 - Page 518]
Ceropegia khasiana (Apocynaceae: Ceropegieae), a new species from Meghalaya, Northeast India [Page 519 - Page 525]
Year of Publication: 2019, Vol. 71 (Supplement 2)
Dr Alistair Hay Dr Mark Large
(Supplement Editor) (Supplement Editor)
Dr David J. Middleton Lily Chen Felicia Tay
(Editor-in-Chief) (Managing Editor) (Graphics Editor)
Ada Davis Daniel C. Thomas Christina Soh
(Copy Editor) (Copy Editor) (Business Manager)
Introduction [Page 3 - Page 5]
David Mabberley and Australian botany [Page 7 - Page 24]
Mabberley’s scholarship [Page 25 - Page 41]
Recollections of the ‘MabLab’, Department of Plant Sciences, University of Oxford, 1977–1996 [Page 43 - Page 46]
E.J.H. Corner — Mabberley’s mentor — and his contributions to the Singapore Botanic Gardens’ heritage [Page 47 - Page 52]
G.C. Oeder’s conflict with Linnaeus and the implementation of taxonomic and nomenclatural ideas in the monumental Flora Danica project (1761–1883) [Page 53 - Page 56]
Georg Rumphius’ Herbarium Amboinense (1741–1750) as a source of information on Indonesian plants for Carl Linnaeus (1707–1778) [Page 87 - Page 107]
Flora Graeca on the European continent [Page 109 - Page 122]
Ferdinand Bauer or Johann and Joseph Knapp? A rectification [Page 123 - Page 142]
The endemic that never was — resolving the status of Coprosma solandri (Rubiaceae) [Page 143 - Page 153]
Three new threatened Keetia species (Rubiaceae—Vanguerieae), from the forests of the Eastern Arc Mountains, Tanzania [Page 155 - Page 168]
Should a flora account be taken for granted? A fresh look at Polyscias serratifolia (Araliaceae) [Page 171 - Page 188]
Aglaia mabberleyi Pannell (Meliaceae), a new species from Borneo [Page 189 - Page 195]
Additions and changes to Ficus (Moraceae) in New Guinea with comments on the world’s largest fig [Page 197 - Page 216]
Begonia mabberleyana (Begoniaceae), a new species from Central Sulawesi, Indonesia [Page 217 - Page 223]
Cinnamomum mabberleyi, a new species from Vietnam and Laos [Page 225 - Page 229]
Biomechanical and hydraulic challenges for a tropical swamp forest and driftwood tree – Alstonia spatulata Blume (Apocynaceae) [Page 231 - Page 244]
Plant parts: processes, structures, or functions? [Page 245 - Page 256]
Durianology, discovery, and saltation — the evolution of aroids [Page 257 - Page 313]
Rapid Botanic Survey, Bioquality and improving botanical inventory in the tropics by integrating across spatial scales [Page 315 - Page 333]
Biogeography and ecology in a pantropical family, the Meliaceae [Page 335 - Page 461]
Species richness, lineages, geography, and the forest matrix: Borneo’s ‘Middle Sarawak’ phenomenon [Page 463 - Page 496]
Borneo and its disproportionately large rheophytic aroid flora [Page 497 - Page 524]
Corner’s Riau Pocket and other hytogeographical provinces in Peninsular Malaysia [Page 525 - Page 538]
Year of Publication: 2019, Vol. 71 (1)
Flora of Singapore precursors, 6: Typification of grass names relevant to the flora of Singapore [Page 1 - Page 45]
The typification of more than 200 names of grass taxa relevant to the flora of Singapore is reviewed. A total of 52 lectotype designations are made here, including 22 which are posthumously published by the late J.F. Veldkamp. In addition, 13 second-step lectotypes (one by JFV), and two neotypes are designated. An earlier place of publication than generally cited for the combination Zizania latifolia is highlighted.
Flora of Singapore precursors, 12. Notes on various Rubiaceae genera [Page 45 - Page 59]
Flora of Singapore precursors, 13. New names and lectotypifications in Athyriaceae and Polypodiaceae [Page 61 - Page 67]
A review of names and types in Diplazium (Athyriaceae) and Polypodiaceae relevant to the Flora of Singapore has been undertaken. A new name and 11 lectotype designations (including one second step lectotypification), are given.
Flora of Singapore precursors, 14. Notes on Apocynaceae [Page 69 - Page 80]
Lectotypes are designated for 28 names of Apocynaceae, seven of which are second-step lectotypifications. Two names are neotypified, Leptostemma hirsutum Blume is designated as the type of the genus Leptostemma Blume, and a new combination in Secamone R.Br. is coined for Genianthus maingayi Hook.f.
The genus Colura (Lejeuneaceae, Marchantiophyta), new to Singapore [Page 81 - Page 85]
Colura brevistyla Herzog is reported here as a new genus and species record for Singapore. A complete description and illustrations of C. brevistyla are provided based on the newly identified specimen from Singapore.
The correct name for Atuna excelsa (Chrysobalanaceae) [Page 87 - Page 88]
A correction is made for the use of the name Atuna excelsa (Jack) Kosterm. which has been erroneously placed as a subspecies of A. racemosa Raf. despite being described sixteen years earlier. Atuna excelsa is restored as the correct name for this species and A. racemosa is reduced to subspecific rank. Since the holotype of Atuna racemosa is an old illustration, an epitype is proposed for this name.
A revision of Cinnamomum Schaeff. (Lauraceae) for Peninsular Malaysia and Singapore [Page 89 - Page 139]
A revision of all species of the genus Cinnamomum Schaeff. (Lauraceae) occurring in Peninsular Malaysia and Singapore is presented with a summary of taxonomic history, notable features ofmorphology, a key to species, and a description, distribution map, Provisional IUCN Conservation Assessment for each species, together with notes on ecology and ethnobotany. In this revision, twenty-two distinct species are recognised, including one former variety that is elevated to species level as Cinnamomum selangorense (Ridl.) de Kok. Eleven names are lectotypified (Camphora inuncta Nees; Cinnamomum cinereum Gamble, C. graciliflorum Gamble, C. malaccense Meisn., C. ridleyi Gamble, C. rhynchophyllum Miq., C. sintoc Blume, C. subcuneatum Miq., C. velutinum Ridl., and C. vimineum Wall. ex Nees; Laurus malabathrum Wall. ex Nees), and five names are placed into synonymy for the first time. A small number of species are considered to have a Provisional IUCN Conservation Assessment of Least Concern, while most are either Endangered or Critically Endangered, with one species considered to be Data Deficient (Cinnamomum trintaense Kosterm.).
Three new taxa, two new combinations and thirty-one lectotypifications in several Lauraceae genera from Peninsular Malaysia
[Page 141 - Page 161]
A new combination in Gynochthodes (Rubiaceae) [Page 163 - Page 165]
New and noteworthy orchid records from Buru Island, Maluku Archipelago [Page 167 - Page 174]
A short note on the orchids of Buru Island, Maluku Archipelago, is presented. Bulbophyllum cruciatum J.J.Sm. and Dendrobium bicaudatum Reinw. ex Lindl. are new records for Buru. Trichotosia buruensis (J.J.Sm.) S.Thomas et al. has been rediscovered after a lapse of 84 years. The distribution of a species with a previously uncertain distribution in Maluku, Dilochia wallichii Lindl., is now confirmed for Buru. We also discovered a population of the endemic Vanda saxatilis J.J.Sm. All species are briefly discussed and illustrated by photographs.
Petrocosmea weiyigangii (Gesneriaceae), a new species from a limestone cave in southern China [Page 175 - Page 183]
A new species, Petrocosmea weiyigangii F.Wen (Gesneriaceae), is described from southern China. It differs from all other species of Petrocosmea in its deeply lobed leaf blades. It is only known from a limestone cave in northwestern Guangxi, China. Following the IUCN Red List categories and criteria, Petrocosmea weiyigangii is assessed as Critically Endangered.
A taxonomic revision of Macrolenes (Melastomataceae) [Page 185 - Page 241]
Macrolenes (Melastomataceae: Dissochaeteae), a genus of woody climbers in Malesia, is taxonomically revised. Seventeen species are recognised, of which three are new to science. The genus is characterised by its scrambling habit, a pair of hair cushion domatia on the base of the leaves, axillary inflorescences, and fimbriate connective appendages on the alternipetalous stamens. An identification key, nomenclature, descriptions, typification, geographic distributions and taxonomic notes are provided. The affinities with Dissochaeta, also woody climbers, are discussed.
Flowering phenology and seed production of three threatened tropical palms, Johannesteijsmannia spp. (Arecaceae)
[Page 243 - Page 260]
The reproductive behaviour and fruit production of three endangered species of Johannesteijsmannia H.E.Moore were studied for two years. Flowering occurred annually in Johannesteijsmannia magnifica J.Dransf. and sub-annually in J. lanceolata J.Dransf. and J. perakensis J.Dransf. The flowering of all species peaked from March to May and occurred during the wet seasons. High seed loss of 84–98% was recorded among the species. On average, Johannesteijsmannia perakensis produced the highest number of mature fruits per year (229) and J. lanceolata the lowest (69). This preliminary study provides vital information on species fecundity and demonstrates that each species, although within the same genus, has different flowering and fruiting behaviour.
BOOK REVIEW: Flora of Peninsular Malaysia. Series II: Seed Plants, Volume 6 and Volume 7. (Malayan Forest Records No. 49). R. Kiew,
R.C.K. Chung, L.G. Saw & E. Soepadmo (eds). 2017 and 2018. [Page 261 - Page 262]