Phenological studies of some rain forest herbs in Peninsular Malaysia

Trees in Peninsular Malaysia show seasonality for leafing (with two main peaks a year) and flowering (with a major season in February to May and in some species a second minor season in August and September) in spite of the variability shown by individuals. Didymocarpus platypus (Gesneriaceae) and P...

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Main Author: Kiew, Ruth
Format: Article
Language:English
Published: Springer 1986
Online Access:http://psasir.upm.edu.my/id/eprint/38736/
http://psasir.upm.edu.my/id/eprint/38736/1/a75%20-%20phernological%20studies%20of%20some%20rain%20forest.pdf
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author Kiew, Ruth
author_facet Kiew, Ruth
author_sort Kiew, Ruth
building UPM Institutional Repository
collection Online Access
description Trees in Peninsular Malaysia show seasonality for leafing (with two main peaks a year) and flowering (with a major season in February to May and in some species a second minor season in August and September) in spite of the variability shown by individuals. Didymocarpus platypus (Gesneriaceae) and Pentaphragma horsjieldii (Pentaphragmataceae) produce flowers throughout the year, although the flower buds of D. platypus "wait" and then open simultaneously. Staurogyne longifolia (Acanthaceae) and Phyllagathis rotundifolia (Melastomataceae; the latter flowers very occasionally) flower seasonally at the same time as trees. In addition, P. rotundifolia has two peaks of leaf production at the same time as trees. Leaves of these forest herbs expand very slowly and are long-lived (18 to 33 months). Leaves of most evergreen tree species live for between 13 and 14 months. Two strategies for survival are shown by these herbs. Pentaphragma horsfieldii and S. longifolia rely on the regular production of seed for their survival-seedlings are common in their populations and they flower and die earlier than Phyllagathis rotundifolia or D. platypus, which rely on a long-life with a lower level of reproduction. P. rotundifolia and D. platypus both produce annually at least three times the leaf area of the other two species. P. rotundifolia rarely produces fruits; its plants are potentially immortal with an evergrowing prostrate stem and it also commonly produces leaf cuttings from its fallen leaves. D. platypus is estimated to live for about 20 years.
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spelling upm-387362015-06-09T05:52:31Z http://psasir.upm.edu.my/id/eprint/38736/ Phenological studies of some rain forest herbs in Peninsular Malaysia Kiew, Ruth Trees in Peninsular Malaysia show seasonality for leafing (with two main peaks a year) and flowering (with a major season in February to May and in some species a second minor season in August and September) in spite of the variability shown by individuals. Didymocarpus platypus (Gesneriaceae) and Pentaphragma horsjieldii (Pentaphragmataceae) produce flowers throughout the year, although the flower buds of D. platypus "wait" and then open simultaneously. Staurogyne longifolia (Acanthaceae) and Phyllagathis rotundifolia (Melastomataceae; the latter flowers very occasionally) flower seasonally at the same time as trees. In addition, P. rotundifolia has two peaks of leaf production at the same time as trees. Leaves of these forest herbs expand very slowly and are long-lived (18 to 33 months). Leaves of most evergreen tree species live for between 13 and 14 months. Two strategies for survival are shown by these herbs. Pentaphragma horsfieldii and S. longifolia rely on the regular production of seed for their survival-seedlings are common in their populations and they flower and die earlier than Phyllagathis rotundifolia or D. platypus, which rely on a long-life with a lower level of reproduction. P. rotundifolia and D. platypus both produce annually at least three times the leaf area of the other two species. P. rotundifolia rarely produces fruits; its plants are potentially immortal with an evergrowing prostrate stem and it also commonly produces leaf cuttings from its fallen leaves. D. platypus is estimated to live for about 20 years. Springer 1986 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/38736/1/a75%20-%20phernological%20studies%20of%20some%20rain%20forest.pdf Kiew, Ruth (1986) Phenological studies of some rain forest herbs in Peninsular Malaysia. Kew Bulletin, 41 (3). pp. 733-746. ISSN 00755974; ESSN: 1874933X 10.2307/4103126
spellingShingle Kiew, Ruth
Phenological studies of some rain forest herbs in Peninsular Malaysia
title Phenological studies of some rain forest herbs in Peninsular Malaysia
title_full Phenological studies of some rain forest herbs in Peninsular Malaysia
title_fullStr Phenological studies of some rain forest herbs in Peninsular Malaysia
title_full_unstemmed Phenological studies of some rain forest herbs in Peninsular Malaysia
title_short Phenological studies of some rain forest herbs in Peninsular Malaysia
title_sort phenological studies of some rain forest herbs in peninsular malaysia
url http://psasir.upm.edu.my/id/eprint/38736/
http://psasir.upm.edu.my/id/eprint/38736/
http://psasir.upm.edu.my/id/eprint/38736/1/a75%20-%20phernological%20studies%20of%20some%20rain%20forest.pdf