A new species of Dendrobium (Orchidaceae: sect. Calcarifera) from Terengganu, Peninsular Malaysia.
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Dendrobium
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Dendrobium moiorum Saputra, Schuit., Wanma & Naive (Orchidaceae; Epidendroideae; Dendrobieae), a new endemic species from West Papua, Indonesia, is described and illustrated. The new species resembles Dendrobium isthmiferum and the diagnostic differences are discussed. Information on distribution, ecology, phenology and conservation status are provided.
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A narrow endemic new species of Dendrobium sect. Stachyobium from Thailand (Orchidaceae: Malaxideae)
A new species belonging to Dendrobium section Stachyobium was discovered in mixed deciduous forest near the Check Point to Thi Lo Su Waterfall, Umphang District, Tak Province, in the northern Thailand. A description (including leaf anatomy), illustration and comparison with the closely related species D. incurvum are provided here.
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Two new species of the mycoheterotrophic genus Thismia Griff. (Thismiaceae), Thismiadomei Siti-Munirah and T.terengganuensis Siti-Munirah from Peninsular Malaysia, are described and illustrated. Thismiadomei, characterized by its perianth lobes that are upright and curve inward, but are imperfectly connate, falls within sectionOdoardoa. Thismiaterengganuensis is characterized by its mitre with three appendages on its apex, so falls within sectionGeomitra. Both new species are unique and totally different from other described species, T.domei by the trichomes on its outer perianth tube surface and T.terengganuensis by its mitre with slender appendages. Thismiajavanica J.J.Sm, also from Terengganu, is a new record for Peninsular Malaysia.
Perianth
Appendage
Trichome
Apex (geometry)
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Dendrobium chiangdaoense, a new species belonging to Dendrobium section Stachyobium is described and illustrated. It is only known from the type locality in mixed deciduous forest at ca. 800 m elev. on limestone hills in Chiang Dao District, Chiang Mai Province, northern Thailand. It most closely resembles D. dixonianum, a more widespread northern Thailand species occurring in upper montane rain forest at 1,650–1,800 m elev.
Dendrobium
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A new Bromheadia species was rescued and collected from a fallen tree in one of the active logging sites by an avid nature conservationist and activist Mr. Dome with the UPM Orchid Research team.This collaboration was initiated as a conservation effort that is aimed to rescue as much orchids from the depleted forests to be nurtured exsitu in a managed conservatory.The genus Bromheadia was established by Lindley in 1841 based upon Grammatophyllum finlaysonianum in 1833 (Comber, 2001).The genus was named after Sir Edward French Bromhead, whose studies of the natural affinities of plants are well known to systematic Botanists (Kruizinga et al., 1997).The genus Bromheadia was later defined into sections Bromheadia and Aporodes by Schlechter (1914: 367) based on their vegetative dissimilarity.They are easily comparable by the shape of the leaves; Sect.Bromheadia has leaves dorsiventrally flattened, tip bilobed, blade more or less narrowed at the base; and Sect.Aporodes has leaves laterally flattened, tip acute, blade not narrowed at the base.The two groups are placed together in one genus of Bromheadia, in spite of the differences in habit, because of the presence of unique two lateral rostellar flaps, which meet over the viscidium covering the upper margin of the stigma.The new species described in this paper is belongs to Sect.Aporodes.In Bromheadia sect.Aporodes, the dimensions of the leaf, the leaf index, and the relative length of the upper stem internode compared with the lower part of the stem, offer the diagnostic characters (Kruizinga et al., 1997).The new species differs distinctively in plant and flower sizes if compared to other species of the same section.Its small and tufted habit had provided initial possible new entity to justify it as a new species to science.There are 31 species of Bromheadia listed in World Checklist of Selected Plant Families (WCSP) with 20 species are belonging to Sect.Aporodes (WCSP, 2018, June), excluding one species insufficiently known due to all known specimens were destroyed during the second world war, but it was stated to be related to B. aporoides and B. falcifolia (in Kruizinga et al., 1997) and 12 species are found in Peninsular Malaysia with seven species from Sect.Aporodes (Ong et al., 2017).
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Crepidium grochockianum sp. nov. (Orchidaceae) from Borneo is here proposed, described and illustrated. This novelity is a large plant compared to other members of the genus, with large and broad leaves. Its flowers are similar to those of C. junghuhnii , but the mid‐lobe is ovate in outline (when the lip is spread and mature), with distinct, oblique folds which cover the lip central cavity. Crepidium grochockianum is proposed to belong in C . sect. Hololobus subsect. Prasinae and was first collected in 1932 from three sites in the surroundings of Mt Kinabalu.
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Dendrobium mizanii, a new species to science belonging to Dendrobium Sect. Calcarifera was discovered in a summit region of a disturbed montane forest in Setiu, Terengganu, and named after His Majesty Sultan of Terengganu, Tuanku Mizan Zainal Abidin. A description, illustration, field and comparison with the closely related species D. crocatum from Peninsular Malaysia and D. doloissumbinii from Borneo are provided here.
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Dendrobium
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A new species of Codonoboea from Gunung Stong, Kelantan, Peninsular Malaysia, is described and illustrated.
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Orchidaceae
Dendrobium
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