Year of Publication: 1993, Vol. 45 (1)
Date Published
June 1993
Turner, I.M.
The Names Used for Singapore Plants Since 1900 [Page 1 - 287]
The Names Used for Singapore Plants Since 1900 [Page 1 - 287]
Abstract:
The native and naturalized vascular plant species of the Republic of Singapore are enumerated with important synonyms used in twentieth century botanical works. Particular emphasis is placed on Ridley's Flora of Singapore. published in 1990. Appendices provide indexes to this flora and to the unpublished Flora of Syonan, a list compiled by staff of the Singapore Botanic Gardens at the time of the Japanese occupation of Singapore. One new combination in the Commelinaceae is introduced.
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The native and naturalized vascular plant species of the Republic of Singapore are enumerated with important synonyms used in twentieth century botanical works. Particular emphasis is placed on Ridley's Flora of Singapore. published in 1990. Appendices provide indexes to this flora and to the unpublished Flora of Syonan, a list compiled by staff of the Singapore Botanic Gardens at the time of the Japanese occupation of Singapore. One new combination in the Commelinaceae is introduced.
Year of Publication: 1993, Vol. 44 (02)
Date Published
15 March 1993
Wah, T.T., Wee, Y.C. and Phang, S.M.
Diatoms from Marine Environments of Peninsular Malaysia and Singapore [Page 73 - 125]
Diatoms from Marine Environments of Peninsular Malaysia and Singapore [Page 73 - 125]
Abstract:
A total of 230 taxa of diatoms belonging to 58 genera were recorded from 12 locations in Peninsular Malaysia and 14 locations in Singapore. The most common genera are Navicula and Nitzschia.
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A total of 230 taxa of diatoms belonging to 58 genera were recorded from 12 locations in Peninsular Malaysia and 14 locations in Singapore. The most common genera are Navicula and Nitzschia.
Tan, H.T.W., Ibrahim, Ali bin and Chua, K.S.
Additions to the Flora of Singapore, I [Page 127 - 133]
Additions to the Flora of Singapore, I [Page 127 - 133]
Abstract:
From field and hebarium studies, two new fern and 23 angiosperm taxa were found to have been previously overlooked or newly discovered in Singapore. Brief notes on their description, distribution and collecting localities are made for each.
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From field and hebarium studies, two new fern and 23 angiosperm taxa were found to have been previously overlooked or newly discovered in Singapore. Brief notes on their description, distribution and collecting localities are made for each.
Oginuma, Kazuo, Lum, Shawn K.Y., Lee Y.H. and Tobe, Hiroshi
Karyomorphology of Some Myrtaceae from Singapore [Page 135 - 139]
Karyomorphology of Some Myrtaceae from Singapore [Page 135 - 139]
Abstract:
Karyomorphology of five species in three genera of Myrtaceae, namely Callistemon, Melaleuca, and Syzygium, is investigated. All five species examined have similar chromosome features at mitotic interphase, prophase, and metaphase. Mitotic metaphase of their somatic cells consistently show 2n = 22, of which 18 chromosomes have centromeres at median position and four at subterminal or terminal position. Syzygium aromaticum has a secondary constriction in the longest pair of chromosomes as in several other related and unrelated species of the family, a fact suggesting that the presence of the secondary constriction may be of some taxonomic use.
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Karyomorphology of five species in three genera of Myrtaceae, namely Callistemon, Melaleuca, and Syzygium, is investigated. All five species examined have similar chromosome features at mitotic interphase, prophase, and metaphase. Mitotic metaphase of their somatic cells consistently show 2n = 22, of which 18 chromosomes have centromeres at median position and four at subterminal or terminal position. Syzygium aromaticum has a secondary constriction in the longest pair of chromosomes as in several other related and unrelated species of the family, a fact suggesting that the presence of the secondary constriction may be of some taxonomic use.
Year of Publication: 1993, Vol. 44 (1)
Date Published
15 March 1993
Tan, H.T.W., Chua, K.S. and Turner, I.M.
The Angiosperm Flora of Singapore Project [Page 1 - 2]
The Angiosperm Flora of Singapore Project [Page 1 - 2]
Abstract:
No abstract
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No abstract
Corlett, Richard T.
The Angiosperm Flora of Singapore 1. Introduction [Page 2 - 21]
The Angiosperm Flora of Singapore 1. Introduction [Page 2 - 21]
Abstract:
No abstract
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No abstract
Kiew, R.
Five New Species of Didymocarpus (Gesneriaceae) from Peninsular Malaysia [Page 23 - 42]
Five New Species of Didymocarpus (Gesneriaceae) from Peninsular Malaysia [Page 23 - 42]
Abstract:
Five new species of Didymocarpus are described from Peninsular Malaysia. Two, D. anthonyi Kiew and D. leiophyllus Kiew, are from the east coast and belong to sect. Boeopsis; D. leucanthus Kiew is from the foothills of Selangor; D. stoloniferus Kiew from Gunung Ulu Kali, Pahang; and D. salicinoides Kiew, from Trengganu and southern Kelantan, is raised to specific rank having previously been described as D. salicinus var. major Ridley. The sections Boeopsis and Salicini are defined and keys to their species provided. Didymocarpus lithophilus Kiew is validated.
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Five new species of Didymocarpus are described from Peninsular Malaysia. Two, D. anthonyi Kiew and D. leiophyllus Kiew, are from the east coast and belong to sect. Boeopsis; D. leucanthus Kiew is from the foothills of Selangor; D. stoloniferus Kiew from Gunung Ulu Kali, Pahang; and D. salicinoides Kiew, from Trengganu and southern Kelantan, is raised to specific rank having previously been described as D. salicinus var. major Ridley. The sections Boeopsis and Salicini are defined and keys to their species provided. Didymocarpus lithophilus Kiew is validated.
Corner, E.J.H.
Notes on the Development of the Fruit-bodies of Four Malayan Species of Amanita (Basidiomycetes) [Page 43 - 45]
Notes on the Development of the Fruit-bodies of Four Malayan Species of Amanita (Basidiomycetes) [Page 43 - 45]
Abstract:
The development of the fruit-bodies was observed under natural conditions in the forest. Those of A. elata, A. princeps and A. virginea took 12-14 days to reach maturity when they persisted for merely 1-3 days. Expanded fruit-bodies soon became fly-blown and this hastened their decay. A. elata and A. princeps fructify early in the fungus season, as do most Malayan species, but A. virginea appears towards the end of the season. The presence of these species is revealed only for a few days twice each year.
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The development of the fruit-bodies was observed under natural conditions in the forest. Those of A. elata, A. princeps and A. virginea took 12-14 days to reach maturity when they persisted for merely 1-3 days. Expanded fruit-bodies soon became fly-blown and this hastened their decay. A. elata and A. princeps fructify early in the fungus season, as do most Malayan species, but A. virginea appears towards the end of the season. The presence of these species is revealed only for a few days twice each year.
Aziz, Bidin and Razali, Jaman
Notes on the Rare Fern, Pteris holttumii C. Chr. [Page 47 - 50]
Notes on the Rare Fern, Pteris holttumii C. Chr. [Page 47 - 50]
Abstract:
Pteris holttumii C. Chr. was found in the vicinity of the lowland dipterocarp forest of Dent Peninsula, of Lahad Datu. It is the second record for Malaysia, and the only known record from the lowland for the species.
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Pteris holttumii C. Chr. was found in the vicinity of the lowland dipterocarp forest of Dent Peninsula, of Lahad Datu. It is the second record for Malaysia, and the only known record from the lowland for the species.
Turner, I.M., Tan, H.T.W. and Chua, K.S.
A Botanical Survey of Pulau Ubin [Page 51 - 71]
A Botanical Survey of Pulau Ubin [Page 51 - 71]
Abstract:
An intense botanical survey of Pulau Ubin, a 1019, 2 ha island within the Republic of Singapore, found at least 332 native and naturalized vascular plant species. These are listed in the paper together with 40 species found to have escaped from cultivation. Previous botanical records for Pulau Ubin are also collated. The contemporary flora is dominated by early successional and ruderal species in addition to mangrove and beach forest elements. The low diversity and relatively high frequency of aliens (71 out of 332 spp.; 21 per cent of the flora) reflects the high degree of human disturbance on the island.
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An intense botanical survey of Pulau Ubin, a 1019, 2 ha island within the Republic of Singapore, found at least 332 native and naturalized vascular plant species. These are listed in the paper together with 40 species found to have escaped from cultivation. Previous botanical records for Pulau Ubin are also collated. The contemporary flora is dominated by early successional and ruderal species in addition to mangrove and beach forest elements. The low diversity and relatively high frequency of aliens (71 out of 332 spp.; 21 per cent of the flora) reflects the high degree of human disturbance on the island.
Year of Publication: 1992, Vol. 43
Date Published
23 March 1992
Wong, K.M.
Schizostachyum terminale Holtt., An Interesting New Bamboo Record for Borneo [Page 39 - 42]
Schizostachyum terminale Holtt., An Interesting New Bamboo Record for Borneo [Page 39 - 42]
Abstract:
The bamboo Schizostachyum terminale Holtt., first recorded and for more than 30 years known only from Peninsular Malaysia, has been documented for north Borneo. It has a clambering, thicket-forming growth habit and an unusual preference for seasonally inundated swampy riverbanks and alluvial flats.
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The bamboo Schizostachyum terminale Holtt., first recorded and for more than 30 years known only from Peninsular Malaysia, has been documented for north Borneo. It has a clambering, thicket-forming growth habit and an unusual preference for seasonally inundated swampy riverbanks and alluvial flats.
Stone, Benjamin C.
New and Noteworthy Malesian Myrsinaceae, VI. Revision of the Genus Hymenandra A.DC. [Page 1 - 17]
New and Noteworthy Malesian Myrsinaceae, VI. Revision of the Genus Hymenandra A.DC. [Page 1 - 17]
Abstract:
Hymenandra A.DC, with eight species, is revised. Four new species are proposed and one species originally placed in Ardisia is transferred. The genus is subdivided into two subgenera, Hymenandra and Lacrimopila subg. nov. (the first with 6, the second with 2 species). A key to the species, new descriptions, illustrations, and a list of exsiccatae examined are included.
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Hymenandra A.DC, with eight species, is revised. Four new species are proposed and one species originally placed in Ardisia is transferred. The genus is subdivided into two subgenera, Hymenandra and Lacrimopila subg. nov. (the first with 6, the second with 2 species). A key to the species, new descriptions, illustrations, and a list of exsiccatae examined are included.
West, John A.
New Algal Records from the Singapore Mangroves [Page 19 - 21]
New Algal Records from the Singapore Mangroves [Page 19 - 21]
Abstract:
The following marine algae are newly recorded for Singapore mangroves: Bostrychia pinnata Tanaka et Chihara, Bostrychia simpliciuscula Harvey ex J. Agardh (Rhodophyta, Ceramiales, Rhodomelaceae), Caloglossa angustalata nom. prov. (Rhodophyta, Ceramiales, Delesseriaceae) and Boodleopsis carolinensis Trono (Chlorophyta, Caulerpales).
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The following marine algae are newly recorded for Singapore mangroves: Bostrychia pinnata Tanaka et Chihara, Bostrychia simpliciuscula Harvey ex J. Agardh (Rhodophyta, Ceramiales, Rhodomelaceae), Caloglossa angustalata nom. prov. (Rhodophyta, Ceramiales, Delesseriaceae) and Boodleopsis carolinensis Trono (Chlorophyta, Caulerpales).
Kochummen, K.M.
Notes on the Systematy of Malayan Phanerogams XXXI Lauraceae [Page 23 - 26]
Notes on the Systematy of Malayan Phanerogams XXXI Lauraceae [Page 23 - 26]
Abstract:
Two new species, Cinnamomum pubescens and Endiandra scrobiculata, and two new varieties, Actinodaphne sesquipedalis var. glabra and Lindera concinna var. reticulata are described.
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Two new species, Cinnamomum pubescens and Endiandra scrobiculata, and two new varieties, Actinodaphne sesquipedalis var. glabra and Lindera concinna var. reticulata are described.
Lim-Ho, Chee Len, Phua, Lek Kheng, Low, Neok Chein and Goh, Chong Jin
Embryo Culture of Howea Palms [Page 27 - 38]
Embryo Culture of Howea Palms [Page 27 - 38]
Abstract:
This paper reports the findings of an experiment on embryo culture of Howea belmoreana and Howea forsteriana. It was demonstrasted that growth regulators significantly affect the development of embryo culture. The medium containing 1 mgl-1 of 2,4-D and 0.5 mgl -1 of 2iP was found to give the best results for both of the Howea palms. Conventional germination of Howea palm seeds generally takes a year or more (Reynolds 1982). In our experiments, the embryo culture required only 12 - 20 weeks to develop fully rooted plantlets. This saving in time could be significant for commercial production.
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This paper reports the findings of an experiment on embryo culture of Howea belmoreana and Howea forsteriana. It was demonstrasted that growth regulators significantly affect the development of embryo culture. The medium containing 1 mgl-1 of 2,4-D and 0.5 mgl -1 of 2iP was found to give the best results for both of the Howea palms. Conventional germination of Howea palm seeds generally takes a year or more (Reynolds 1982). In our experiments, the embryo culture required only 12 - 20 weeks to develop fully rooted plantlets. This saving in time could be significant for commercial production.
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