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BLUMEA BLUMEA[Top of this page] [Catalogue of publications] [NHN]
A climbing bamboo endemic to North Queensland in Australia, previously named Bambusa moreheadiana, represents a new monotypic endemic genus there, Mullerochloa. Its clambering-scrambling, generally non-twining habit, sympodial rhizomes, inflated proximal ends of culm internodes and culm sheaths with a wrinkled basal zone, are distinctive vegetative characters. Additional important characters of the reproductive system include the iterauctant flowering habit, producing clusters of pseudospikelets, each with 4–9 flowers and a terminal vestigial flower; paleas that conspicuously exceed the lemmas in length; consistently four anthers borne on a filament tube; and a glabrous ovary. A discussion of the circumscription of the Asiatic genus Bambusa, with which a number of other distinct genera, including Mullerochloa, have been confused, is provided.
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Two species of Impatiens (Balsaminaceae), I. sorikensis Utami and I. batanggadisensis Utami are described as new species. They are endemic for Batang Gadis National Park, North Sumatra.
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Seed coat morphology was observed through SEM for 65 species and 10 sections of Impatiens. Several types of seed coat are recognized in this study. On the basis of comparison with other characters such as chromosome numbers, floral characters and seedling morphology, systematic problems concerning Impatiens are briefly discussed.
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Two new species ofTachia (Gentianaceae: Helieae) are described from Brazil. They share the unusual characteristic of quadrangular, winged stems, formerly only known from Tachia longipes in Suriname. They differ from this species in their larger, winged, keeled, and long-acuminate calyx lobes. Tachia lancisepala, spec. nov., is only known from one collection from the State of Rondônia in Brazil, and has unusually large and broadly funnelshaped corollas and ovate leaves with winged petioles. Tachia siwertii, spec. nov., has been found in three separate areas in southern Amazonas and Pará (Brazil) and is characterized by more elliptic leaves, unwinged petioles, and a narrower corolla than T. lancisepala.
Duas novas espécies de Tachia (Gentianaceae: Helieae) oriundas do Brasil são descritas. Ambas compartilham os ramos quadrangulares e alados, características observadas originalmente apenas em Tachia longipes do Suriname. Diferem dessa espécie em seus lobos do cálice maiores, alados e longamente acuminados. Tachia lancisepala, spec. nov., é conhecida somente de uma coleção do estado de Rondônia no Brasil e tem corolas particularmente grandes e amplamente infundibuliformes e folhas ovadas. Tachia siwertii, spec. nov., tem sido encontrada em três diferentes áreas ao sul do Amazonas e Pará (Brasil), sendo caracterizada por folhas mais elípticas, pecíolos não alados e pela corola mais estreita do que de T. lancisepala.
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Within the polymorphic S. indicus complex a new variety, var. saxicola Sosef & Ngok Banak, is being distinguished, based on its small habit, short and narrow leaves and especially its lax panicle with short primary branches.
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A new narrowly endemic Begonia species discovered during recent fieldwork in the northern part of the Doudou Mountains in Gabon is described.
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A new species of Calvoa from the Mbe National Park, Monts de Cristal is described.
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Vaccinium section Rigiolepis (Hook.f.) Sleumer is revised for the Flora
Malesiana region. In the introduction a short history of the genus (section) and
its defining characters are presented followed by comments about Sleumer’s
classification for this section. Numerical techniques using features suggested
by Sleumer on ‘indet’ specimens at Leiden counsel a more conservative approach
to species delimitation and the resultant revision for this section recognizes
thirteen species including three new taxa, viz., V. crinigrum, V.
suberosum, and V. linearifolium. Lectotypes for V. borneense
W.W. Sm. and
V. leptanthum Miq. are also proposed.
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Celtis australiensis Sattarian is described from Australia and Celtis madagascariensis Sattarian is new for Madagascar. Both new Celtidaceae (formerly Ulmaceae–Celtidoideae) are illustrated with a photograph.
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An updated taxonomic description of the orchid genus Geesinkorchis and a new identification key are given in addition to a distribution map, photographs and analytical drawings. Two new species (G. quadricarinata and G. breviunguiculata) are described from Borneo and Sumatra, respectively.
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A new species, Cycas zambalensis Madulid & Agoo, is described from an ultrabasic hilly grassland in Zambales, Luzon Island, Philippines.
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A new species of Hypolytrum (Cyperaceae), H. unispicatum Sosef & D.A. Simpson, from southern Cameroon is described and illustrated. Some remarks on its ecology and related species are given.
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Aspidistra renatae C. Bräuchler from Central Vietnam is described as a new species characterised by narrowly elliptic to linear petiolate leaves and campanulate flowers with a subglobose tube. Details on the type locality, association and ecology of the species are provided.
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A new species, Artocarpus thailandicus, is described from Thailand.
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The tribe Artocarpeae is redefined, the tribe Soroceae is established by change of rank, and as a consequence a new tribe Antiaropsidae is established. Moreover, a new species Antiaropsis uniflora C.C. Berg is described. In Artocarpus a new species is described, A. albobrunneus C.C. Berg, one subspecies is raised to the rank of species, A. brevipedunculatus (F.M. Jarrett) C.C. Berg, and new subspecies are described in several species, A. longifolius Becc. subsp. adpressus C.C. Berg, A. teijsmannii Miq. subsp. subglabrus C.C. Berg. In Prainea, P. papuana is reduced to a subspecies, P. limpato (Miq.) K. Heyne subsp. papuana (Becc.) C.C. Berg. In Streblus the sections Pseudomorus (Bureau) Corner and Taxotrophis (Blume) Corner are reinstated, S. urophyllus is reduced to a subspecies, S. glaber (Merr.) Corner subsp. urophyllus (Diels) C.C. Berg, in S. streblus var. australianus is raised to S. glaber subsp. australianus (C.T. White) C.C. Berg, and S. celebensis C.C. Berg is described as a new species.
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Sabia uropetala Gagnep. & Vidal is reduced to Sabia swinhoei Hemsl. as a synonym, and the identity of Embelia bonii Gagnep., cited in Flora of Vietnam, is clarified.
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We describe Hymenophyllum apteryx M. Kessler & Sundue, H. assurgens M. Kessler & A.R. Sm. and H. latisorum M. Kessler & A.R. Sm. as new to science.
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In advance of a taxonomic treatment for the Flora of the Guianas project, five new species of Guatteria Ruiz & Pav. (Annonaceae), from the Pakaraima Mountains in Western Guyana (northern South America) are described here.
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Five new combinations and one new name are proposed for six Rubiaceae species from South-East Asia. Four new combinations are proposed in Cyclophyllum and one in Psychotria; a new name is proposed for one Psychotria species.
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The genus Labisia (Myrsinaceae) is revised for the Flora Malesiana region. Seven species are recognised. Several earlier described species are synonymous to L. pumila and reduced to varieties of that species: var. alata, var. lanceolata, var. neriifolia and var. sessilifolia. A new record of L. longistyla is mentioned. Labisia malouiana and L. obtusifolia are excluded from the genus.
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Last modified mei 01, 2006 by P. Hovenkamp.