Thai Forest Bulletin (Botany) <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> Forest Herbarium (BKF) en-US Thai Forest Bulletin (Botany) 0495-3843 A new species of Scleria P.J.Bergius (Cyperaceae) from North-Eastern Thailand <p><em>Scleria aureovillosa</em> Kiaosanthie &amp; K.Wangwasit, a new species of Cyperaceae from North-Eastern Thailand, is described and illustrated. It is closely related to<em> S. benthamii</em> C.B.Clarke but differs in the leaf and culm surfaces, culm shape, the absence of wings at the leaf sheath, contraligule features, nutlet morphology and micromorphology, and leaf and culm anatomy. An emended section of the key to the species in the Flora of Thailand account of <em>Scleria</em> is provided.</p> Wipawan Kiaosanthie Wanwipha Chaisongkram Kamolhathai Wangwasit ##submission.copyrightStatement## 2018-09-21 2018-09-21 46 2 113 122 10.20531/tfb.2018.46.2.01 Miscellaneous Cucurbit News V <p>Two recently described species are transferred from <em>Zehneria</em> to <em>Pilogyne</em>, namely <em>Pilogyne</em><em> subcoriacea</em> (Y.D.Zhou &amp; Q.F.Wang) Wilde &amp; Duyfjes and <em>Pilogyne longiflorum</em> (G.W.Hu &amp; Q.F.Wang) Wilde &amp; Duyfjes. A new species from Thailand is described, <em>Sinobaijiania frondosa</em> Wilde &amp; Duyfjes. For <em>Thladiantha angustifolia</em> Wilde &amp; Duyfjes a range extension into China is noted.</p> Willem J.J.O. de Wilde Brigitta E.E. Duyfjes ##submission.copyrightStatement## 2018-10-01 2018-10-01 46 2 123 128 10.20531/tfb.2018.46.2.02 A new species of Brassaiopsis (Araliaceae) from Thailand, and lectotypifications of related names <p><em>Brassaiopsis spinosissima</em> Esser is described as a new species from Peninsular Thailand. It is compared with similar species from Thailand (<em>Brassaiopsis ciliata</em> Dunn and <em>B. griffithii</em> C.B.Clarke) and Peninsular Malaysia (<em>B. sumatrana</em> Ridl.). They are primarily distinguished by differences in inflorescence size and position and in details of the indumentum. Two names sometimes confused with the new species,<em> Panax palmatus</em> Roxb. and <em>Hedera polyacantha</em> Wall., are lectotypified and discussed in connection with <em>Brassaiopsis hainla</em> (Buch.-Ham. ex D.Don) Seem. in order to distinguish them from the new species.</p> Hans-Joachim Esser ##submission.copyrightStatement## 2018-10-08 2018-10-08 46 2 129 133 10.20531/tfb.2018.46.2.03 Dendrobium chrysocrepis (Orchidaceae), a new record for Thailand <p>In this paper we report the first confirmed find of<em> Dendrobium chrysocrepis</em> in Thailand. A morphological description, a line drawing and a colour plate are presented (all based on Thai material), whereas some background information on the globally rare species is provided.</p> Orporn Phueakkhlai Somran Suddee Trevor R. Hodkinson Henrik Æ. Pedersen Priwan Srisom Sarawood Sungkaew ##submission.copyrightStatement## 2018-10-11 2018-10-11 46 2 134 137 10.20531/tfb.2018.46.2.04 The Genus Campylotropis (Leguminosae) in Thailand <p>Seven taxa of Thai <em>Campylotropis</em> are recognized: <em>C. bonii</em> Schindl., <em>C. capillipes</em> (Franch.) Schindl. subsp. <em>prainii</em> (Collett &amp; Hemsl.) Iokawa &amp; H.Ohashi, <em>C. decora</em> (Kurz) Schindl., <em>C. harmsii</em> Schindl., <em>C. parviflora</em> (Kurz) Schindl., <em>C. pinetorum</em> (Kurz)&nbsp;Schindl. and <em>C. sulcata</em> Schindl. The reinstatement of <em>C. parviflora</em> is proposed here and <em>C. cytisoides</em> f. <em>parviflora</em> is reduced to a&nbsp;synonym of C<em>. parviflora</em>. A key to the species and descriptions with notes on their distribution, ecological data, vernacular names&nbsp;and photographs are also provided.</p> Jiratthi Satthaphorn Peerapat Roongsattham Pranom Chantaranothai Charan Leeratiwong ##submission.copyrightStatement## 2018-10-29 2018-10-29 46 2 138 150 10.20531/tfb.2018.46.2.05 Chelonopsis thailandica, a new species and new record of Chelonopsis (Lamiaceae) from Thailand <p><em>Chelonopsis thailandica</em> A.J.Paton, Suddee &amp; Bongch. is described and illustrated here. The new species belongs in <em>Chelonopsis</em> Sect. <em>Aequidens</em> being a small shrub with an equally lobed calyx, lanceolate leaves and eglandular hairs. The new species differs from the other species in the section in having a remotely toothed leaf margin and denser indumentum. This is the first species of <em>Chelonopsis</em> to be recorded from Thailand. Only one specimen has been seen and it is possible that the habitat where the collection was made in Chiang Mai Province no longer exists.</p> Alan Paton Somran Suddee Bhanubong Bongcheewin ##submission.copyrightStatement## 2018-11-01 2018-11-01 46 2 151 154 10.20531/tfb.2018.46.2.06