A REVISION OF THE NECKERACEAE SCHIMP. AND THE THAMNOBRYACEAE MARG. & DUR. IN THE NEOTROPICS (COLOMBIA, VENEZUELA, ECUADOR).
Item
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Title
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A REVISION OF THE NECKERACEAE SCHIMP. AND THE THAMNOBRYACEAE MARG. & DUR. IN THE NEOTROPICS (COLOMBIA, VENEZUELA, ECUADOR).
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Identifier
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AAI8801758
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identifier
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8801758
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Creator
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SASTRE-DE JESUS, INES.
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Contributor
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William R. Buck
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Date
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1987
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Language
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English
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Publisher
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City University of New York.
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Subject
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Biology, General
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Abstract
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Based on herbarium specimens and field work in Colombia, Venezuela and Ecuador the Neckeraceae and Thamnobryaceae were revised. The Neckeraceae in the neotropics are represented by two genera: Neckera and Neckeropsis. Asymmetric leaves in the family are considered a unique feature. Ten species are accepted in the genus Neckera. The ten species showed five basic patterns of distribution: Central America only (N. angustifolia, N. pachycarpa and N. ehrenbergii); Central America, West Indies and northern South America (N. urnigera); northern Andes (N. obtusifolia, N. spruceana, N. andina); Andes and southeastern Brazil (N. scabridens, N. chilensis) and southeastern South America (N. villae-ricae). In Neckeropsis three species are recognized (N. disticha, N. undulata and N. foveolata) which are lowland in distribution. A re-examination of phyllotaxy in the family showed that it is not a useful taxonomic character at the generic level.;In the neotropics five genera are recognized in the Thamnobryaceae. Homalia and Homaliodendron, with one species each, are restricted to the West Indies and Central America. Two species are accepted in Pinnatella (P. minuta and P. callicostelloides). Thamnobryum is defined by dull plants with strong costae and short leaf cells. Generic separation between Porotrichum and Porothamnium was found ill-defined with unsuitable distinguishing characters. Nine species are recognized in Porothichum.
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Type
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dissertation
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Source
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PQT Legacy CUNY.xlsx
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degree
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Ph.D.
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Program
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Biology
