Thai Forest Bulletin (Botany) 2021-10-15T13:12:24+07:00 Dr. Rachun Pooma Open Journal Systems <p>Thai Forest Bulletin (Botany)&nbsp;- here referred to as TFB (Botany) -&nbsp;was first published in 1954 by the Royal Forest Department, under the leadership of its first editor Prof. Dr. Tem Smitinand. In 2002, the journal was published by the Department of National Parks, Wildlife and Plant Conservation with Prof. Dr. Thawatchai Santisuk as editor, supported by editorial board members from several prominent herbaria in Europe. At present, the TFB (Botany) is published by the Forest Herbarium in Bangkok, with Dr. Rachun Pooma and Dr. Tim Utteridge as editors. The journal is published once a year, usually in September-December with the manuscript no submission deadline, and articles are published in English. All manuscripts are peer reviewed by international scientists and edited by native English language speakers on the editorial board before acceptance and publication.&nbsp;TFB (Botany) will become both printed and electronic journal starting with volume 44 (2016), and through the TFB (Botany) Archive, every article published since 1954 is available and completely searchable online.</p> <p>ISSN : 0495-3843&nbsp;(print), 2465-423x (electronic)</p> Rhynchoglossum ausculum (Gesneriaceae), a new species from South-Western Thailand 2021-07-24T10:19:56+07:00 Nannapat Pattharahirantricin Manop Poopath <p>The new species of <em>Rhynchoglossum</em> <em>ausculum</em>, from South-Western Thailand is described and illustrated. An emended key to the Thai species of <em>Rhynchoglossum</em> is provided.</p> 2021-07-24T10:16:51+07:00 Copyright (c) 2021 Forest Herbarium Additions to Annonaceae in the Flora of Thailand 2021-07-30T13:28:50+07:00 David M. Johnson Pasakorn Bunchalee Piya Chalermglin Pranom Chantaranothai Charan Leeratiwong Nancy A. Murray Richard Saunders Yotsawate Sirichamorn Yvonne Su Phanom Sutthisaksopon <p>Work toward completion of the Annonaceae treatment for the Flora of Thailand revealed 18 species previously unrecorded for the country, six of them in the genus <em>Fissistigma</em>. In addition, several species previously placed in synonymy are re-instated, for which we propose three new combinations in the genera <em>Mitrella</em>, <em>Monoon</em>, and <em>Sphaerocoryne</em>.</p> 2021-07-28T10:06:44+07:00 Copyright (c) 2021 Forest Herbarium The genus Phyllocyclus (Gentianaceae) in Thailand 2021-09-10T11:44:54+07:00 Kotchaphan Sisakhon Kongkanda Chayamarit Narong Wongkantrakorn David Middleton Wittawat Kiewbang Watchara Salee Srunya Vajrodaya <p>An account of the genus <em>Phyllocyclus</em> (Gentianaceae) for Thailand is presented. Three species are recognized, including two recently reported species, <em>Phyllocyclus petelotii</em> and <em>P. parishii</em>. A key to the Thai species, descriptions, illustrations, and conservation status are provided.</p> 2021-09-10T09:58:27+07:00 Copyright (c) 2021 Forest Herbarium Torenia maculata (Linderniaceae), a new record for Thailand 2021-09-15T14:42:24+07:00 Phanom Sutthisaksopon Pranom Chantaranothai Somran Suddee <p><em>Torenia maculata</em>, is a newly recorded species for Thailand. A description, illustrations and comments on its ecology and distribution are provided.</p> 2021-09-15T14:42:24+07:00 Copyright (c) 2021 Forest Herbarium Twelve new records of Pteridophytes from Bolaven Plateau, southern Laos 2021-10-01T15:02:21+07:00 Thyraphon Vongthavone Shuichiro Tagane PHONGPHAYBOUN PHONEPASEUTH KEOOUDONE SOUVANNAKHOUMMANE Phetlasy Souladeth <p>Twelve pteridophytes from six families are reported from the Bolaven Plateau, southern Laos, as new records to the flora of Laos. For each species, voucher specimens, photographs and additional information including geographical distribution, ecology and taxonomic notes are provided.</p> 2021-09-30T14:12:55+07:00 Copyright (c) 2021 Forest Herbarium Two new species and a new record of Begonia (Begoniaceae) from Vangvieng karst limestone in central Laos 2021-10-11T09:16:28+07:00 Soulivanh Lanorsavanh Keooudone Souvannakhoummane Vichith Lamxay Khamfa Chanthavongsa <p><em>Begonia cataracta</em> and <em>B. voluptuaria</em> are described as new species and <em>B. incerta</em> is noted as a new record for Laos. Descriptions, illustrations and photographs are provided for the new species and photographs for the new record. Preliminary conservation assessments are made for the two new species which are assessed as Vulnerable and Critically Endangered respectively.</p> 2021-10-11T09:16:27+07:00 Copyright (c) 2021 Forest Herbarium Begonia sirindhorniana (Begoniaceae) a new species from Thailand 2021-10-11T13:48:17+07:00 Thamarat Phutthai Theerawat Thananthaisong Kunanon Daonurai Priwan Srisom Somran Suddee Mark Hughes <p><em>Begonia sirindhorniana</em>, a new species from South-Western Thailand is described and illustrated.</p> 2021-10-11T13:48:16+07:00 Copyright (c) 2021 Forest Herbarium The genus Gaertnera (Rubiaceae) in Thailand 2021-10-15T13:12:24+07:00 Khanit Wangwasit Kamolhathai Wangwasit <p>Two species of <em>Gaertnera</em> in Thailand, viz. <em>G. junghuhniana</em> and <em>G. sralensis</em>, are enumerated and described. A lectotype is designated for <em>G. taiensis</em>, a synonym of <em>G. junghuhniana</em>. A key to species and data on distribution, habit and phenology are also provided.</p> 2021-10-15T13:12:23+07:00 Copyright (c) 2021 Forest Herbarium