Pub Date : 2020-01-01DOI: 10.20531/tfb.2020.48.2.06
Atiwut Bunlam, Yupa Thasod, Pitaksit Ditbanjong, R. Fongngern, P. Grote
The Cenozoic palaeovegetation and palaeoclimate of Doi Ton, western Thailand, megaflora are reconstructed based on physiognomic climate analysis, including Leaf Margin Analysis (LMA), Leaf Area Analysis (LAA), Leaf Size Index (LSI), Climate Leaf Analysis Multivariate Program (CLAMP), and systematic descriptions of each leaf morphotype. The leaf fossils were divided into 23 dicotyledonous leaf morphotypes and two unknown leaf morphotypes. The mean annual temperature results from LMA indicate 32.3 ± 1.17°C and CLAMP shows 21.2°C. CLAMP also provides temperature data of a warm month mean temperature (WMMT) of 27.4°C and a CMMT of 14.2°C, which is similar to the present climate. The mean annual precipitation is estimated by LAA to be ~ 125 cm. CLAMP suggests precipitation in the 11 months of growing period was 154.9 cm with the three wettest months having precipitation of 73 cm, widely contrasting with 15.5 cm for the three driest months. The precipitation shows the signal of the monsoon effect. The temperature, precipitation, and LSI mirrored the vegetation of the contemporary Doi Ton area which is a semi-evergreen forest in the tropical zone. The palaeoclimatic parameters of Doi Ton are in good agreement with those of south China and northwest India from the Eocene period and the present-day Mae Sot area. Moreover, the Doi Ton flora also closely matches the humid subtropical modern vegetation of south China. Palaeoclimate and vegetation analysis support an Eocene age estimate for the Doi Ton Formation however further independent age estimates are required to test this working hypothesis.
{"title":"The Cenozoic leaf morphotypes and palaeoclimate interpretation from the Doi Ton Formation, Mae Sot District, Tak Province, western Thailand","authors":"Atiwut Bunlam, Yupa Thasod, Pitaksit Ditbanjong, R. Fongngern, P. Grote","doi":"10.20531/tfb.2020.48.2.06","DOIUrl":"https://doi.org/10.20531/tfb.2020.48.2.06","url":null,"abstract":"The Cenozoic palaeovegetation and palaeoclimate of Doi Ton, western Thailand, megaflora are reconstructed based on physiognomic climate analysis, including Leaf Margin Analysis (LMA), Leaf Area Analysis (LAA), Leaf Size Index (LSI), Climate Leaf Analysis Multivariate Program (CLAMP), and systematic descriptions of each leaf morphotype. The leaf fossils were divided into 23 dicotyledonous leaf morphotypes and two unknown leaf morphotypes. The mean annual temperature results from LMA indicate 32.3 ± 1.17°C and CLAMP shows 21.2°C. CLAMP also provides temperature data of a warm month mean temperature (WMMT) of 27.4°C and a CMMT of 14.2°C, which is similar to the present climate. The mean annual precipitation is estimated by LAA to be ~ 125 cm. CLAMP suggests precipitation in the 11 months of growing period was 154.9 cm with the three wettest months having precipitation of 73 cm, widely contrasting with 15.5 cm for the three driest months. The precipitation shows the signal of the monsoon effect. The temperature, precipitation, and LSI mirrored the vegetation of the contemporary Doi Ton area which is a semi-evergreen forest in the tropical zone. The palaeoclimatic parameters of Doi Ton are in good agreement with those of south China and northwest India from the Eocene period and the present-day Mae Sot area. Moreover, the Doi Ton flora also closely matches the humid subtropical modern vegetation of south China. Palaeoclimate and vegetation analysis support an Eocene age estimate for the Doi Ton Formation however further independent age estimates are required to test this working hypothesis.","PeriodicalId":37958,"journal":{"name":"Thai Forest Bulletin (Botany)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88796844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-01DOI: 10.20531/tfb.2019.47.2.06
P. Chantaranothai
A synopsis of the genus Prismatomeris in Thailand is presented. Eight species are recognized and P. glabra is newly recorded for Thailand; P. tetrandra subsp. malayana is no longer recognized as a distinct taxon. Descriptions of the genus and the newly recorded species are provided, as well as a key to the Thai species and notes on ecology, distribution, vernacular and photographs.
{"title":"The genus Prismatomeris (Rubiaceae) in Thailand","authors":"P. Chantaranothai","doi":"10.20531/tfb.2019.47.2.06","DOIUrl":"https://doi.org/10.20531/tfb.2019.47.2.06","url":null,"abstract":"A synopsis of the genus Prismatomeris in Thailand is presented. Eight species are recognized and P. glabra is newly recorded for Thailand; P. tetrandra subsp. malayana is no longer recognized as a distinct taxon. Descriptions of the genus and the newly recorded species are provided, as well as a key to the Thai species and notes on ecology, distribution, vernacular and photographs.","PeriodicalId":37958,"journal":{"name":"Thai Forest Bulletin (Botany)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78819560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-01DOI: 10.20531/tfb.2019.47.2.07
S. Mattapha, F. Forest, J. Hawkins, S. Suddee, Naiyana Tetsana, P. Chantaranothai, Kew Richmond Surrey Tw Ae United Kingdom Royal Botanic Gardens, Chatuchak Bangkok Thailand Plant Conservation
During preparation of the account of the genus Millettia (Fabaceae: Faboideae) for the Flora of Thailand, some new field collections and specimens from herbaria were found to represent three new species, and here they are described and illustrated with a distribution map. Lectotypes of Millettia names are designated for nine species, five new synonyms of Millettia are proposed and Millettia tecta is raised to species status.
{"title":"Three new species, lectotypifications and synonymisations in Millettia (Fabaceae: Faboideae) for Thailand","authors":"S. Mattapha, F. Forest, J. Hawkins, S. Suddee, Naiyana Tetsana, P. Chantaranothai, Kew Richmond Surrey Tw Ae United Kingdom Royal Botanic Gardens, Chatuchak Bangkok Thailand Plant Conservation","doi":"10.20531/tfb.2019.47.2.07","DOIUrl":"https://doi.org/10.20531/tfb.2019.47.2.07","url":null,"abstract":"During preparation of the account of the genus Millettia (Fabaceae: Faboideae) for the Flora of Thailand, some new field collections and specimens from herbaria were found to represent three new species, and here they are described and illustrated with a distribution map. Lectotypes of Millettia names are designated for nine species, five new synonyms of Millettia are proposed and Millettia tecta is raised to species status.","PeriodicalId":37958,"journal":{"name":"Thai Forest Bulletin (Botany)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86878475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-01DOI: 10.20531/TFB.2019.47.1.02
S. Mattapha, Auamporn Veesommai, Sathaporn Patthum, P. Chantaranothai, Ngam Wong Wan Road, Chatuchak Bangkok Thailand
Two species, Millettia penicillata and M. pierrei, are recorded as new for Thailand. The latter is lectotypified and its characteristics are discussed with the close genera. Illustrations, descriptions, taxonomic notes and distribution map are provided.
{"title":"Two new records and lectotypified taxa of the genus Millettia (Fabaceae: Millettieae) for Thailand","authors":"S. Mattapha, Auamporn Veesommai, Sathaporn Patthum, P. Chantaranothai, Ngam Wong Wan Road, Chatuchak Bangkok Thailand","doi":"10.20531/TFB.2019.47.1.02","DOIUrl":"https://doi.org/10.20531/TFB.2019.47.1.02","url":null,"abstract":"Two species, Millettia penicillata and M. pierrei, are recorded as new for Thailand. The latter is lectotypified and its characteristics are discussed with the close genera. Illustrations, descriptions, taxonomic notes and distribution map are provided.","PeriodicalId":37958,"journal":{"name":"Thai Forest Bulletin (Botany)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75436850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-01DOI: 10.20531/TFB.2019.47.2.02
Ai Nagahama, S. Tagane, Phetlasy Souladeth, Anousone Sengthong, T. Yahara
A new species of Gentiana, Gentiana bolavenensis (Gentianaceae) is described from Dong Hua Sao National Protected Area in southern Laos, with photographs, a vernacular name and a preliminary conservation status.
{"title":"Gentiana bolavenensis (Gentianaceae), a new species from Dong Hua Sao National Protected Area in southern Laos","authors":"Ai Nagahama, S. Tagane, Phetlasy Souladeth, Anousone Sengthong, T. Yahara","doi":"10.20531/TFB.2019.47.2.02","DOIUrl":"https://doi.org/10.20531/TFB.2019.47.2.02","url":null,"abstract":"A new species of Gentiana, Gentiana bolavenensis (Gentianaceae) is described from Dong Hua Sao National Protected Area in southern Laos, with photographs, a vernacular name and a preliminary conservation status.","PeriodicalId":37958,"journal":{"name":"Thai Forest Bulletin (Botany)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84304854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-01DOI: 10.20531/tfb.2019.47.1.09
Woranart Thammarong, P. Chantaranothai, J. Parnell, T. Hodkinson, P. Pornpongrungrueng
The pollen morphology of four genera and 33 taxa of Lecythidaceae in Southeast Asia was investigated, including 26 taxa of Barringtonia , one taxon each of Careya and Chydenanthus , and five taxa of Planchonia to determine which, if any, taxonomically important characters were present and the implications they have for the systematics of the family. Acetolysed and unacetolysed pollen samples were investigated using light and scanning electron microscopy (SEM). The pollen grains were found to be monads, radially symmetrical, isopolar, small to medium-sized, syntricolpate or syntricolporate, prolate spheroidal, oblate spheroidal, subprolate, suboblate or spherical in shape with marginal ridges. Marginal grooves and polar cushions are commonly present in most species. The polar ectoaperture may be open or sealed. The mesocolpial sculpturing is perforate-reticulate. The colpial surface is smooth, with sparsely or densely scattered verrucae-gemmae and with clavate to pilate elements scattered or aligned in longitudinal rows. The results indicated that pollen morphological characters can be used for identification and classification of some closely related species in the genus Barringtonia .
{"title":"Pollen morphology of Lecythidaceae in Southeast Asia","authors":"Woranart Thammarong, P. Chantaranothai, J. Parnell, T. Hodkinson, P. Pornpongrungrueng","doi":"10.20531/tfb.2019.47.1.09","DOIUrl":"https://doi.org/10.20531/tfb.2019.47.1.09","url":null,"abstract":"The pollen morphology of four genera and 33 taxa of Lecythidaceae in Southeast Asia was investigated, including 26 taxa of Barringtonia , one taxon each of Careya and Chydenanthus , and five taxa of Planchonia to determine which, if any, taxonomically important characters were present and the implications they have for the systematics of the family. Acetolysed and unacetolysed pollen samples were investigated using light and scanning electron microscopy (SEM). The pollen grains were found to be monads, radially symmetrical, isopolar, small to medium-sized, syntricolpate or syntricolporate, prolate spheroidal, oblate spheroidal, subprolate, suboblate or spherical in shape with marginal ridges. Marginal grooves and polar cushions are commonly present in most species. The polar ectoaperture may be open or sealed. The mesocolpial sculpturing is perforate-reticulate. The colpial surface is smooth, with sparsely or densely scattered verrucae-gemmae and with clavate to pilate elements scattered or aligned in longitudinal rows. The results indicated that pollen morphological characters can be used for identification and classification of some closely related species in the genus Barringtonia .","PeriodicalId":37958,"journal":{"name":"Thai Forest Bulletin (Botany)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90592714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-01DOI: 10.20531/TFB.2019.47.1.08
Sukontip Sirimongkol, J. Parnell, T. Hodkinson, D. Middleton, C. Puglisi, Royal Botanic Gardens Kew Richmond Surrey Tw Ae Uk. Herbarium
Five new species of Henckelia are described, two from Myanmar: Henckelia campanuliflora and H. candida, and the others from Thailand: H. amplexifolia, H. nakianensis and H. dasycalyx. A key to the 1 to 2-leaved species of the genus is given, as well as photographs, ecology, and also IUCN conservation status for the new species.
报告了5个新种，其中2个来自缅甸:Henckelia campanuliflora和H. candida，其余来自泰国:H. amplexifolia, H. nakianensis和H. dasycalyx。给出了该属的1至2叶物种的关键，以及新物种的照片，生态学和IUCN保护状况。
{"title":"Five new species of Henckelia (Gesneriaceae) from Myanmar and Thailand","authors":"Sukontip Sirimongkol, J. Parnell, T. Hodkinson, D. Middleton, C. Puglisi, Royal Botanic Gardens Kew Richmond Surrey Tw Ae Uk. Herbarium","doi":"10.20531/TFB.2019.47.1.08","DOIUrl":"https://doi.org/10.20531/TFB.2019.47.1.08","url":null,"abstract":"Five new species of Henckelia are described, two from Myanmar: Henckelia campanuliflora and H. candida, and the others from Thailand: H. amplexifolia, H. nakianensis and H. dasycalyx. A key to the 1 to 2-leaved species of the genus is given, as well as photographs, ecology, and also IUCN conservation status for the new species.","PeriodicalId":37958,"journal":{"name":"Thai Forest Bulletin (Botany)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88325962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-01DOI: 10.20531/tfb.2019.47.2.09
Woranart Thammarong, C. Maknoi, P. Panyadee
Heterostemma succosum is reported as a new record for Laos. A description and an illustration are provided.
报道了老挝异茎藜属新记录。提供了描述和图解。
{"title":"Heterostemma succosum (Apocynaceae), a new record for Laos","authors":"Woranart Thammarong, C. Maknoi, P. Panyadee","doi":"10.20531/tfb.2019.47.2.09","DOIUrl":"https://doi.org/10.20531/tfb.2019.47.2.09","url":null,"abstract":"Heterostemma succosum is reported as a new record for Laos. A description and an illustration are provided.","PeriodicalId":37958,"journal":{"name":"Thai Forest Bulletin (Botany)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83130441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-01DOI: 10.20531/tfb.2019.47.2.12
H. Kurzweil, Cluny Road Singapore Singapore Botanic Gardens, P. Ormerod, Cairns Queensland Australia P.O. Box
A review of the Calanthe group in Myanmar is presented, comprising the representatives of the genera Calanthe, Cephalantheropsis and Phaius. Currently there are 28 Calanthe species, 2 Cephalantheropsis species and 6 Phaius species known in the country. An identification key to the species, short descriptions as well as brief notes on distribution and ecology are given, and colour photographs of several species are also provided. Calanthe lamellosa is newly reported for Myanmar.
{"title":"A review of the Calanthe group (Orchidaceae) in Myanmar","authors":"H. Kurzweil, Cluny Road Singapore Singapore Botanic Gardens, P. Ormerod, Cairns Queensland Australia P.O. Box","doi":"10.20531/tfb.2019.47.2.12","DOIUrl":"https://doi.org/10.20531/tfb.2019.47.2.12","url":null,"abstract":"A review of the Calanthe group in Myanmar is presented, comprising the representatives of the genera Calanthe, Cephalantheropsis and Phaius. Currently there are 28 Calanthe species, 2 Cephalantheropsis species and 6 Phaius species known in the country. An identification key to the species, short descriptions as well as brief notes on distribution and ecology are given, and colour photographs of several species are also provided. Calanthe lamellosa is newly reported for Myanmar.","PeriodicalId":37958,"journal":{"name":"Thai Forest Bulletin (Botany)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78720776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-01DOI: 10.20531/tfb.2019.47.2.14
T. Choopan, P. Grote, K. Chayamarit, D. Simpson, Chatuchak Bangkok Thailand Plant Conservation, Kew Richmond Surrey Tw Ae United Kingdom Royal Botanic Gardens
A checklist of Acanthaceae subfamily Nelsonioideae in Thailand is presented. Two genera (Nelsonia and Staurogyne) and 29 species are considered native to Thailand, including new species Staurogyne kaengkrachanense. Ecological and distributional data, together with a key to the species, are provided.
{"title":"A checklist of Acanthaceae subfamily Nelsonioideae in Thailand","authors":"T. Choopan, P. Grote, K. Chayamarit, D. Simpson, Chatuchak Bangkok Thailand Plant Conservation, Kew Richmond Surrey Tw Ae United Kingdom Royal Botanic Gardens","doi":"10.20531/tfb.2019.47.2.14","DOIUrl":"https://doi.org/10.20531/tfb.2019.47.2.14","url":null,"abstract":"A checklist of Acanthaceae subfamily Nelsonioideae in Thailand is presented. Two genera (Nelsonia and Staurogyne) and 29 species are considered native to Thailand, including new species Staurogyne kaengkrachanense. Ecological and distributional data, together with a key to the species, are provided.","PeriodicalId":37958,"journal":{"name":"Thai Forest Bulletin (Botany)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77053932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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