Download or read book Three New Species of Vernonia from South America Vernonieae Asteraceae written by and published by . This book was released on 1983 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Generic and Subtribal Classification of American Vernonieae written by Harold Ernest Robinson and published by . This book was released on 1999 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Vernonieae in America is herein defined to exclude the Liabeae and Pseudostifftia (Moquinieae), and to include elements sometimes placed in the Heliantheae (Trichospira) or Lactuceae (Stokesia). Pollen, style bases, raphids, inflorescence form, involucre, anther appendage, and chemistry are some characters used in the reclassification. Tables 1-12 indicate the distribution of these characteristics in most American genera. Vernonia s.s., with type A pollen, is typified by V. noveboracensis (L.) and occurs in the Bahamas, eastern North America, south to central Mexico and has two species in temperate South America. All other species previously placed in Vernonia need to be removed from the genus, a process that is nearly complete for neotropical species. Most American Vernonieae seem to form a single related subgroup in the tribe. Subtribes included in the related subgroup are the Lychnophorinae (x 15, 17, 18) and Centratherinae (x 16) with type A pollen and furoheliangolides; Piptocarphinae (x 17) with type A pollen, deciduous inner involucre, and sometimes opposite leaves; Vernoniinae (x 17), many with glanduliferous anther appendages (including the Lepidaploa complex mostly with echinolophate pollen); and the newly proposed subtribes Sipolisiinae with type A pollen, armed receptacles, and carbonized achenes; Chrestinae with echinolophate pollen; and Leiboldiinae (x 19) with type A pollen, large heads, and a modified callus at the top of the achene. Of uncertain relationship to the preceding related subgroup are Stokesia (x 7), the Elephantopodinae (x 11, 13), and the Rolandrinae (x 8) with echinolophate pollen; three genera with type E pollen (Pacourina, Acilepidopsis, and Mesanthophora); and the Trichospirinae with type A pollen and flattened bicornute achenes. Ten subtribes are recognized, plus four unplaced generic groups. Three of the subtribal names, Leiboldiinae, Chrestinae, and Sipolisiinae are validated in the treatment. The genus Caatinganthus of eastern Brazil, a possible relative of the Elephantopinae, is described as new. A list of the 76 accepted genera of Vernonieae, native or introduced in the New World, is provided, and a complete list of names of American Vernonieae is given with an indication of their present taxonomic dispositions and geographical distributions. Fifteen new combinations are provided.
Download or read book Revision of Pearcea Gesneriaceae written by Lars Peter Kvist and published by . This book was released on 1996 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seventeen species of Pearcea (Gesneriaceae) are recognized, nine of which are new: Pearcea bella, P. bilabiata, P. cordata, P. fuscicalyx, P. glabrata, P. gracilis, P. grandifolia, P. intermedia, and P. strigosa. Of the remaining eight species, two were originally described in Pearcea, one is transferred herein from Kohleria, and five come from Parakohleria, a genus placed in synonymy herein. Pearcea occurs mainly on the eastern Andean slopes of Colombia (5 species), Ecuador (12 species), Peru (6 species), and Bolivia (1 species), and one species also occurs on the western Andean slopes in Ecuador. The largest number of species appears to occur in Ecuador, although additional species may occur in less explored parts of Peru. Pearcea differs from related and similar genera in the Gloxinieae by having fleshy capsules dehiscing by two valves and exposing a sticky seed mass. All species are herbs, usually with bright red flowers, and are usually found in the shady, humid forest understory, often near small streams. Hybridization, local speciation, and polymorphic variation may complicate the species delimitation. The variable Pearcea sprucei occurs throughout nearly the entire range of the genus (and includes the only accepted variety, var. parviflora), but most species are rare and local.
Download or read book Potential New Crop Vernonia January 1970 November 1988 written by Jerry Rafats and published by . This book was released on 1989 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Compositae Systematics written by and published by . This book was released on 1996 with total page 808 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Potential New Crop Vernonia 1970 85 written by Jerry Rafats and published by . This book was released on 1985 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Systematics Evolution and Biogeography of Compositae written by Vicki Ann Funk and published by . This book was released on 2009 with total page 1008 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This spectacular book does full justice to the Compositae (Asteraceae), the largest and most successful flowering plant family with some 1700 genera and 24,000 species. It is an indispensable reference, providing the most up-to-date hypotheses of phylogenetic relationships in the family based on molecular and morphological characters, along with the corresponding subfamilial and tribal classification. The 2009 work not only integrates the extensive molecular phylogenetic analyses conducted in the last 25 years, but also uses these to produce a metatree for about 900 taxa of Compositae. The book contains 44 chapters, contributed by 80 authors, covering the history, economic importance, character variation, and systematic and phylogenetic diversity of the family. The emphasis of this work is phylogenetic; its chapters provide a detailed, current, and thoroughly documented presentation of the major (and not so major) clades in the family, citing some 2632 references. Like the Compositae, the book is massive, diverse, and fascinating. It is beautifully illustrated, with 170 figures, and an additional 108 cladograms (all consistently color-coded, based on the geographic range of the included taxa); within these figures are displayed 443 color photographs, clearly demonstrating the amazing array of floral and vegetative form expressed by members of the clade." --NHBS Environment Bookstore.
Download or read book Phytologia written by and published by . This book was released on 1997 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: A journal of plant systematics, phytogeography and vegetation ecology.
Download or read book Compositae Newsletter written by and published by . This book was released on 2004 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Kew Record of Taxonomic Literature written by and published by . This book was released on 2001 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Biological Society of Washington written by Biological Society of Washington and published by . This book was released on 2010 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalogue of the Flowering Plants and Gymnosperms of Peru written by Lois Brako and published by . This book was released on 1993 with total page 1364 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference work provides basic data and modern literature references for more than 17,000 species of seed plants known from Peru.
Download or read book Smithsonian Year written by Smithsonian Institution and published by . This book was released on 1984 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Embryo Transfer 1979 85 written by Sheldon Cheney and published by . This book was released on 1985 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quick Bibliography Series written by and published by . This book was released on 1976 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Kew Record of Taxonomic Literature Relating to Vascular Plants for written by and published by . This book was released on 1993 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt:
