Pub Date : 2022-01-01DOI: 10.20531/tfb.2022.50.1.03
C. Ngernsaengsaruay, N. Leksungnoen, Weereesa Boonthasak, Suwimon Utharatsamee, Phruet Leetanasakskul, Kantinan Leetanasakskul, Pornkanok Pongamorn, Atcharaphan Saengbuapuean
A revision of the genus Mitragyna (Rubiaceae) in Thailand is reported. Four species, i.e. M. diversifolia, M. hirsuta, M. rotundifolia, and M. speciosa are described in this taxonomic treatment. A summary of taxonomic history, detailed morphological descriptions, distributions, ecology, phenology, vernacular names, uses, IUCN conservation status, specimens examined, photographs and a key to the species are proposed. Two names are lectotypified: M. rotundifolia and M. speciosa.
{"title":"Additional knowledge on the genus Mitragyna (Rubiaceae) in Thailand","authors":"C. Ngernsaengsaruay, N. Leksungnoen, Weereesa Boonthasak, Suwimon Utharatsamee, Phruet Leetanasakskul, Kantinan Leetanasakskul, Pornkanok Pongamorn, Atcharaphan Saengbuapuean","doi":"10.20531/tfb.2022.50.1.03","DOIUrl":"https://doi.org/10.20531/tfb.2022.50.1.03","url":null,"abstract":"A revision of the genus Mitragyna (Rubiaceae) in Thailand is reported. Four species, i.e. M. diversifolia, M. hirsuta, M. rotundifolia, and M. speciosa are described in this taxonomic treatment. A summary of taxonomic history, detailed morphological descriptions, distributions, ecology, phenology, vernacular names, uses, IUCN conservation status, specimens examined, photographs and a key to the species are proposed. Two names are lectotypified: M. rotundifolia and M. speciosa.","PeriodicalId":37958,"journal":{"name":"Thai Forest Bulletin (Botany)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82726838","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 : 2022-01-01DOI: 10.20531/tfb.2022.50.1.06
N. Pattharahirantricin, M. Poopath
A new species of Combretum, C. pendulum, is described and illustrated. Taxonomic notes on typifications for C. apetalum and C. winitii, and synonymisations for C. alatum and C. quadratum are presented. A key to Thai Combretum species is also provided.
描述并说明了一种新的Combretum, C. pendulum。本文介绍了无瓣金草和金花金草的分类说明，并介绍了无瓣金草和金花金草的同义语。还提供了泰国Combretum物种的关键。
{"title":"A new species and taxonomic notes on the genus Combretum (Combretaceae) in Thailand","authors":"N. Pattharahirantricin, M. Poopath","doi":"10.20531/tfb.2022.50.1.06","DOIUrl":"https://doi.org/10.20531/tfb.2022.50.1.06","url":null,"abstract":"A new species of Combretum, C. pendulum, is described and illustrated. Taxonomic notes on typifications for C. apetalum and C. winitii, and synonymisations for C. alatum and C. quadratum are presented. A key to Thai Combretum species is also provided.","PeriodicalId":37958,"journal":{"name":"Thai Forest Bulletin (Botany)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83699058","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 : 2022-01-01DOI: 10.20531/tfb.2022.50.2.14
Phetlasy Souladeth, S. Tagane, K. Souvannakhoummane, Deuanta Kongxaisavath
Two species of Apocynaceae, Chilocarpus denudatus and Kopsia vidalii, are newly recorded for Laos. The genus Chilocarpus is also a new generic record for Laos. Notes on Parsonsia penangiana are also provided. A description, photographs, ecological information, vernacular names, and an IUCN conservation status based on our collections are provided for each species.
{"title":"Notes on Apocynaceae in Laos: Chilocarpus denudatus, Kopsia vidalii and Parsonsia penangiana","authors":"Phetlasy Souladeth, S. Tagane, K. Souvannakhoummane, Deuanta Kongxaisavath","doi":"10.20531/tfb.2022.50.2.14","DOIUrl":"https://doi.org/10.20531/tfb.2022.50.2.14","url":null,"abstract":"Two species of Apocynaceae, Chilocarpus denudatus and Kopsia vidalii, are newly recorded for Laos. The genus Chilocarpus is also a new generic record for Laos. Notes on Parsonsia penangiana are also provided. A description, photographs, ecological information, vernacular names, and an IUCN conservation status based on our collections are provided for each species.","PeriodicalId":37958,"journal":{"name":"Thai Forest Bulletin (Botany)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81840844","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 : 2022-01-01DOI: 10.20531/tfb.2022.50.1.02
P. Bunchalee, David M. Johnson, N. A. Murray
The widespread Asian genus Monoon (Annonaceae) comprises about 70 tropical forest species, over 20 of which occur in Thailand. Four new species from Thailand are described here: Monoon roseum and M. ornithocephalum from Peninsular Thailand and M. phukraduengense and M. phuluangense from North-Eastern Thailand.
{"title":"Distinctive new Monoon species (Annonaceae) from Thailand, increasing diversity of a genus of ecologically important Asian trees","authors":"P. Bunchalee, David M. Johnson, N. A. Murray","doi":"10.20531/tfb.2022.50.1.02","DOIUrl":"https://doi.org/10.20531/tfb.2022.50.1.02","url":null,"abstract":"The widespread Asian genus Monoon (Annonaceae) comprises about 70 tropical forest species, over 20 of which occur in Thailand. Four new species from Thailand are described here: Monoon roseum and M. ornithocephalum from Peninsular Thailand and M. phukraduengense and M. phuluangense from North-Eastern Thailand.","PeriodicalId":37958,"journal":{"name":"Thai Forest Bulletin (Botany)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76919021","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 : 2022-01-01DOI: 10.20531/tfb.2022.50.1.05
I. Turner
Rennellia wallichii is proposed as a new combination to take the place of R. speciosa as the correct name of a Rubiaceae species from Myanmar, Thailand and Malaysia. A lectotype is designated for Morinda wallichii.
{"title":"A new combination in Rennellia (Rubiaceae)","authors":"I. Turner","doi":"10.20531/tfb.2022.50.1.05","DOIUrl":"https://doi.org/10.20531/tfb.2022.50.1.05","url":null,"abstract":"Rennellia wallichii is proposed as a new combination to take the place of R. speciosa as the correct name of a Rubiaceae species from Myanmar, Thailand and Malaysia. A lectotype is designated for Morinda wallichii.","PeriodicalId":37958,"journal":{"name":"Thai Forest Bulletin (Botany)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89910063","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 : 2022-01-01DOI: 10.20531/tfb.2022.50.2.17
Pornchai Kladwong, P. Chantaranothai
Strobilanthes spirei is proposed as a new combination of Clinacanthus spirei. Strobilanthes hypomalla and S. spirei are newly recorded for Thailand. The lectotypification of S. hypomalla is made. A detailed description of morphology and pollen features is provided as well as photographs, distribution map, ecology and taxonomic notes.
{"title":"A new combination of Strobilanthes (Acanthaceae) with two new records from Thailand","authors":"Pornchai Kladwong, P. Chantaranothai","doi":"10.20531/tfb.2022.50.2.17","DOIUrl":"https://doi.org/10.20531/tfb.2022.50.2.17","url":null,"abstract":"Strobilanthes spirei is proposed as a new combination of Clinacanthus spirei. Strobilanthes hypomalla and S. spirei are newly recorded for Thailand. The lectotypification of S. hypomalla is made. A detailed description of morphology and pollen features is provided as well as photographs, distribution map, ecology and taxonomic notes.","PeriodicalId":37958,"journal":{"name":"Thai Forest Bulletin (Botany)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86081550","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 : 2022-01-01DOI: 10.20531/tfb.2022.50.2.12
Pongsakorn Kunasit, P. Chantaranothai
The external pollen morphology of the family Sapotaceae in Thailand was examined using the acetolysis method to determine its taxonomic significance. Pollen of 39 specimens belonging to 32 species was investigated by means of light and scanning electron microscopy. Pollen grains are found to be monads, isopolar, colporate, lalongate, and variable in size, shape, aperture number, colpus length and exine thickness. Exine ornamentation is also variable, showing more than one pattern on a single pollen grain. Principal component analysis based on 13 pollen characters identified three pollen groups: Chrysophyllum, Madhuca and Pouteria types based on pollen shape, size, the ratio of colpus length to the polar axis and exine sculpturing. Pollen morphology is taxonomically useful in the classification of the Thai Sapotaceae, especially in the taxonomic status of Planchonella and Pouteria species.
{"title":"Pollen morphology of the Sapotaceae from Thailand and its taxonomic implications","authors":"Pongsakorn Kunasit, P. Chantaranothai","doi":"10.20531/tfb.2022.50.2.12","DOIUrl":"https://doi.org/10.20531/tfb.2022.50.2.12","url":null,"abstract":"The external pollen morphology of the family Sapotaceae in Thailand was examined using the acetolysis method to determine its taxonomic significance. Pollen of 39 specimens belonging to 32 species was investigated by means of light and scanning electron microscopy. Pollen grains are found to be monads, isopolar, colporate, lalongate, and variable in size, shape, aperture number, colpus length and exine thickness. Exine ornamentation is also variable, showing more than one pattern on a single pollen grain. Principal component analysis based on 13 pollen characters identified three pollen groups: Chrysophyllum, Madhuca and Pouteria types based on pollen shape, size, the ratio of colpus length to the polar axis and exine sculpturing. Pollen morphology is taxonomically useful in the classification of the Thai Sapotaceae, especially in the taxonomic status of Planchonella and Pouteria species.","PeriodicalId":37958,"journal":{"name":"Thai Forest Bulletin (Botany)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90000446","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 : 2021-01-01DOI: 10.20531/TFB2021.49.1.08
K. Pruesapan, P. Welzen
Two new species of Aquifoliaceae are reported for Thailand. Ilex depressifructu is newly recorded from Umphang District, Tak Province (leaf blades ovate, ovate-oblong or oblong, base obtuse; infructescences solitary dichasia; fruits depressed globose with capitate stigma; pyrenes 5, shallowly-5-sulcate, 6-striate) and Ilex phanganensis (like I. umbellulata, but glabrous, smaller leaves, less veins, diplothyrsoid inflorescences with mainly alternate branches, less pyrenes), is newly recorded from Ko Phagnan Islands, Surat Thani Province. The descriptions and illustrations of the taxa are presented.
{"title":"Two new species of Ilex (Aquifoliaceae) from Thailand","authors":"K. Pruesapan, P. Welzen","doi":"10.20531/TFB2021.49.1.08","DOIUrl":"https://doi.org/10.20531/TFB2021.49.1.08","url":null,"abstract":"Two new species of Aquifoliaceae are reported for Thailand. Ilex depressifructu is newly recorded from Umphang District, Tak Province (leaf blades ovate, ovate-oblong or oblong, base obtuse; infructescences solitary dichasia; fruits depressed globose with capitate stigma; pyrenes 5, shallowly-5-sulcate, 6-striate) and Ilex phanganensis (like I. umbellulata, but glabrous, smaller leaves, less veins, diplothyrsoid inflorescences with mainly alternate branches, less pyrenes), is newly recorded from Ko Phagnan Islands, Surat Thani Province. The descriptions and illustrations of the taxa are presented.","PeriodicalId":37958,"journal":{"name":"Thai Forest Bulletin (Botany)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76787158","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 : 2021-01-01DOI: 10.20531/TFB.2021.49.1.17
Phongphayboun Phonepaseuth, K. Souvannakhoummane, S. Tagane, Phetlasy Souladeth, T. Yahara
A new species of Paraboea (Gesneriaceae), P. khotamiae, from a limestone karst in central Laos, is described and illustrated. The species resembles Paraboea bintangensis, P. prazeri and P. robusta, but differs in leaf shape and floral features, especially corolla shape and size, the interior of the corolla tube, and capsule characters. In addition, we report the occurrence of Middletonia reticulata (Gesneriaceae) for the flora of Laos for the first time.
{"title":"A new species of Paraboea and a new species record of Middletonia (Gesneriaceae) from a limestone karst in Central Laos","authors":"Phongphayboun Phonepaseuth, K. Souvannakhoummane, S. Tagane, Phetlasy Souladeth, T. Yahara","doi":"10.20531/TFB.2021.49.1.17","DOIUrl":"https://doi.org/10.20531/TFB.2021.49.1.17","url":null,"abstract":"A new species of Paraboea (Gesneriaceae), P. khotamiae, from a limestone karst in central Laos, is described and illustrated. The species resembles Paraboea bintangensis, P. prazeri and P. robusta, but differs in leaf shape and floral features, especially corolla shape and size, the interior of the corolla tube, and capsule characters. In addition, we report the occurrence of Middletonia reticulata (Gesneriaceae) for the flora of Laos for the first time.","PeriodicalId":37958,"journal":{"name":"Thai Forest Bulletin (Botany)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86990419","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 : 2021-01-01DOI: 10.20531/TFB.2021.49.1.13
Phetlasy Souladeth, S. Tagane, S. Suddee, Deuanta Kongxaysavath, Sukid Rueangruea, Phahonyothin Road Ladyao Chatuchak Bangkok Thailand Plant Conservation
A new species, Sonerila bolavenensis (Melastomataceae), from the Bolaven Plateau, southern Laos, is described and illustrated. Sonerila bolavenensis is easily recognized by its tiny stature up to 3 cm tall (including inflorescence), small ovate to rounded leaves 0.3–1.4 × 0.35–1 cm, petioles 0.2–0.8 cm long, and 1-flowered inflorescence. A vernacular name and preliminary conservation status are provided.
{"title":"Sonerila bolavenensis, a new species of Melastomataceae from Laos","authors":"Phetlasy Souladeth, S. Tagane, S. Suddee, Deuanta Kongxaysavath, Sukid Rueangruea, Phahonyothin Road Ladyao Chatuchak Bangkok Thailand Plant Conservation","doi":"10.20531/TFB.2021.49.1.13","DOIUrl":"https://doi.org/10.20531/TFB.2021.49.1.13","url":null,"abstract":"A new species, Sonerila bolavenensis (Melastomataceae), from the Bolaven Plateau, southern Laos, is described and illustrated. Sonerila bolavenensis is easily recognized by its tiny stature up to 3 cm tall (including inflorescence), small ovate to rounded leaves 0.3–1.4 × 0.35–1 cm, petioles 0.2–0.8 cm long, and 1-flowered inflorescence. A vernacular name and preliminary conservation status are provided.","PeriodicalId":37958,"journal":{"name":"Thai Forest Bulletin (Botany)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80971320","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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