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1.
The distribution patterns of Adiantum species were inventoried at twelve noninundated rain forest (tierra firme) sites in Amazonian Peru and Ecuador. Six species belonging to the genus were found, and four of these were abundant at some of the sites. At six of the sites none of the species was particularly abundant. Both the occurrence and the abundance of the species varied among sites with regard to soil texture and concentration of exchangeable bases and within sites with regard to topography. Adiantum tomentosum) Klotzsch was restricted to loamy soils with intermediate to low content of extractable bases and was locally most abundant in the well drained parts of slopes and ridge tops. Adiantum terminatum Kunze ex Miq. and A. humile Kunze occurred at sites with intermediate to high content of extractable bases, but their relative abundances differed among and within sites. Adiantum pulverulentum L. was restricted to soils with relatively high base concentration. Ecological differences among the species obviously explained many of the differences in their distribution patterns at the local and regional scales, and may be important for the understanding of such patterns at biogeographical scales as well. 相似文献
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The indigenous species of Pteridophyta known to occur in Ceylon number 314. In addition, 18 naturalized species occur as weeds of cultivation or as introduced aliens. Fifty-seven species are endemic to Ceylon and 28 non-endemic species are absent from India. Lists of these and other phytogeographical groupings are given. The full list of species is followed by comments on the taxonomy or nomenclature of 76 taxa. Four new combinations are made: Asplenium polyodon var. bipinnatum (Sledge) Sledge; Deparia polyrhizon (Baker) Sledge; Polystichum harpophyllum (Zenker ex Kunze) Sledge, and Bolbitis appendiculata var. asplenifolia (Bory) Sledge. Athyrium puncticaule (Blume) T. Moore and A. lanceum (Kunze) T. Moore replace A. anisopterum Christ and A. macrocarpum (Blume) Beddome, respectively. 相似文献
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Rojas-Alvarado AF 《Revista de biología tropical》2002,50(3-4):969-1006
More new species, new combinations and new distributions are made in the large and difficult genus Elaphoglossum in Neotropic. Ten new species are described, this are: Elaphoglossum adrianae A. Rojas, E. betancuri A. Rojas, E. caridadae A. Rojas, E. glabromarginatum A. Rojas, E. kessleri A. Rojas, E. macdougalii A. Rojas, E. paramicola A. Rojas, E. paxense A. Rojas, E. pseudoherminieri A. Rojas and E. solomonii A. Rojas. Three species are combined, this are: Elaphoglossum beitelii (Mickel) A. Rojas, E. curvans (Kunze) A. Rojas and E. eutecnum (Mickel) A. Rojas. Finally, 86 species are reported from other countries and some species names are synonymized. 相似文献
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本文记载了云南产鳞毛蕨属植物18种,其中新种3种,云南新分布的种3种。对一些长期混淆不清的种还进行了分类学讨论。 相似文献
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Alexandre Salino Rozijane Santos Fernandes Marcio Roberto Pietrobom 《Nordic Journal of Botany》2011,29(5):611-614
A new species of Thelypteris subgenus Goniopteris (Thelypteridaceae) is described and illustrated: Thelypteris amazonica Salino & R. S. Fernandes is apparently most similar to Thelypteris anoptera (Kunze) C. Chr. (Brazil‐Bahia) and T. abrupta (Desv.) Proctor (Antilles, Central America, South America), but differs from both by the clavate vein ends, basal vein pairs from adjacent segments not united below the sinuses, and petioles with simple and stellate hairs. Thelypteris amazonica is known only from Amazonian Brazil. 相似文献
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Summary The fairly recently established disjunctional Fennoscandian area of Chra strigosa
A. Br., which species was earlier known only from a few alpine lakes in the European Alps, is described and mapped. A survey of some of its ecological traits shows that the species requires neutral or alkaline reaction, a relatively high lime content, and probably a low chloride content of the water. The factors involved in the formation of the recent area of the species are discussed.Received for publication 30.X.1953. 相似文献
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Rojas-Alvarado AF 《Revista de biología tropical》2003,51(1):1-31
Twelve new species are described in the taxonomically difficult Elaphoglossum (sect. Elaphoglossum): Elaphoglossum angustifrons A. Rojas, E. delgadilloanum A. Rojas, E. ellipticifolium A. Rojas, E. incognitum A. Rojas, E. mesoamericanum A. Rojas, E. nicaraguese A. Rojas, E. polypodium A. Rojas, E. tejeroanum A. Rojas, E. reptans A. Rojas, E. terrestre A. Rojas, E. variabile A. Rojas and E. zavale A. Rojas. Also, E. latifolium (Sw.) J. Sm., E. sartorii (Liebm.) Mickel and E. viride (E. Fourn.) C. Chr. are amended, E. andicola (Fée) T. Moore and E. sporadolepis (Kunze ex Kuhn) T. Moore are reported. 相似文献
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Wilfried Hasselbach 《Zoology in the Middle East.》2013,59(1):139-140
Summary In this publication, a subdivision of the genus Annenica O. Boettger, 1877 sensu Auct. is proposed. One result of our study is the recognition of the genus Sprattia O. Boettger, 1883 for most of the South Anatolian species of the former genus Armenica. The genus Astrogena Szekeres, 1970, which was synonymised by H. NORDSIECK (1975: 98) with Armenica is redefined and used as a subgenus of Armenica for some species. Extensive recent collections contain new species and subspecies of this genus, which are described here. 相似文献
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Zusammenfassung Weitere Ergebnisse über das Vorkommen von Homo- und Heterothallie in 50 Stämmen aus 18 Arten von Chaetomium Kunze ex Fr. werden mitgeteilt. Unter 13 in dieser Richtung noch nicht untersuchten Arten wurde bei 11 Homo- und bei 2 (C. nozdrenkoae Serg. und C. subaffine Serg.) Heterothallie gefunden.Unter den 18 untersuchten Stämmen von C. elatum Kunze ex Fr. gab es Homosowie auch Heterothallie, während für die 6 untersuchten Stämme von C. cochliodes Palliser, entgegen der Auffassung anderer Autoren, Homothallie nachgewiesen wurde. Bei allen umtersuchten heterothallischen Arten und Stämmen konnten je zwei Kreuzungstypen nachgewiesen werden.
Die Untersuchungen wurden durch den Schweizerischen Nationalfonds zur Förderung der Wissenschaft unterstützt.
Technische Mitarbeit: E. Tresl. 相似文献
Compatibility in Chaetomium I. Occurrence of homo- and heterothallism in species and strains
Summary Further data are given about the occurrence of homo- and heterothallism in Chaetomium Kunze ex.Fr. 50 strains including 18 species were examined, monospore cultures being isolated by micromanipulation. Among 13 species, not previously investigated in this respect, heterothallism was noted in only 2 cases (C. nozdrenkoae Serg. and C. subaffine Serg.).In 18 strains of C. elatum Kunze ex Fr. homothallism as well as heterothallism was observed, while all 6 strains of C. cochliodes Palliser, in contradiction to other investigators, were identified as homothallic. Two opposite mating types were indicated in all heterothalic species and strains.
Die Untersuchungen wurden durch den Schweizerischen Nationalfonds zur Förderung der Wissenschaft unterstützt.
Technische Mitarbeit: E. Tresl. 相似文献
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The Harpellales genus Smittium is based on a type species, S. arvernense, which was described by Poisson in 1937 without designation of a type specimen. Smittium arvernense has not been reported since its original publication. Because the other 79 species of Smittium cannot be compared to the type species, a lectotype is proposed as well as an epitype for that lectotype that is also the holotype of S. mucronatum. Because Smittium is believed to be polyphyletic these type designations will provide stable application of names and, as well resolved phylogenetic analyses of member species emerge based on morphological and DNA sequence characters, they will provide a foundation for a more robust and revised classification. 相似文献
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This paper comprises a complete revision of the Afrotropical species of the genus Amerila ( Rhodogastria auct.), based on adult morphology. Examination of type material for most described taxa has resulted in numerous taxonomic changes. From a total of forty-seven previously described African taxa, thirty-five species including five newly described species and two new subspecies are recognized. For ten taxa, lectotypes have been selected, and for one species a neotype had to be designated. For each species, in addition to synonymy, a brief diagnosis based on external characters and genitalia is given, and the known distribution summarized. All species are illustrated by photographs and illustrations of male genitalia (except A.rufifemur , the male of which is unknown), and a key for determination of males by external characters is provided. 相似文献
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Ting Hui Ng Phiraphol Chusongsang Yupa Chusongsang Somsak Panha 《Molluscan research.》2019,39(2):140-147
ABSTRACTFour decades after its publication, Rolf A.M. Brandt’s 1974 monograph on the non-marine molluscs of Thailand remains the main authority on freshwater and estuarine species for Southeast Asia and includes up to 165 new species of snails and bivalves described by Brandt and colleagues in the same book and preceding publications. All the holotypes are lodged at the Forschungsinstitut und Naturmuseum Senckenberg in Germany, and are largely inaccessible to Thai and other Southeast Asian researchers, who rely heavily on the Brandt collection as a key reference. Paratypes were, however, donated to various other collections, including some in Thailand. We present the first catalogue of 45 paratypes of gastropods of the Brandt collection, described from Thailand, Laos and Cambodia, which are lodged at the Faculty of Tropical Medicine, Mahidol University, Thailand. 相似文献
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对云南产复叶耳蕨属植物进行了再次的分类订正研究,确认云南有该属植物20个种类,其中,华南复叶耳蕨Arachniodes festina(Hance)Ching和齿头复叶耳蕨A.aristata(Forst.)Tindale为云南分布新记录;将《中国植物志》等资料中的Acrorumohra dissecta、Arachniodes ailaoshanensis、A.australis、A.austro-yunnanensis、A.caudata、A.chinensis var.cornopteris、A.chinensis var.jinpingensis、A.chingii、A.dayaoensis、A.futeshanensis、A.gongshanensis、A.guangtongensis、A.lushuiensissis、A.pianmaensis,A.pianmaensis、A.pseudo-aristata、A.ppseudo-assamica、A.sshuangbaiensis、A.sinoaristata、A.sporadosora和A.triangularis等20个名称作为新异名处理。还列出了云南产该属植物的分种检索表、名称的处理及分类讨论、地理分布等。 相似文献
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鳞果星蕨属是从星蕨属中划分出来的,其孢子囊群上幼时覆盖着近无柄的鳞片状隔丝。本文在
研究星蕨亚科植物标本和野外考察的基础上,结合解剖学、孢粉学、生态学和植物地理学资料,对鳞果星蕨属植物作了修订。承认该属的独立性,并研究了有关种类的变异幅度,将星蕨属中有盾状隔丝的种类归入本属,承认鳞果星蕨和云南鳞果星蕨两个种。 相似文献