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taxa need

Listing 1 - 10 from 73 for taxa need

Cycad conservation, Article 3
... objectives that urgently need to be focused on with respect to a realistic program for development of world-wide, off-site preservation collections of cycads. · Set priorities for which taxa need to be ... is biased for countries with active cycad field research programs. Before setting priorities on what taxa need preservation, Osborne’s (1995a) and the WCMC’s (1993) listings must be updated based on ...
www.plantapalm.com

Interactive Key to Arisaema
... the most commonly used directives. Need Intkey? Download Here. The present package is illustrated by several line drawings (characters and states) and many color images (mainly taxa). The same suite of images is currently employed to illustrate both taxa and characters, with critical features ‘hotspotted’ in the ...
botu07.bio.uu.nl

Mosses and Liverworts in Wales: Priority Species
... Species In order to help identify those species most in need of protection Red Data Books have been produced for a ... in one of the preceding categories." TAXONOMICALLY ILL-DEFINED (T) "Taxa with obvious taxonomical problems or of doubtful value, and therefore ... to consider objectively in a Red List". REGIONALLY THREATENED (RT) "Taxa not obviously threatened in the whole of Europe but threatened ...
home.clara.net

Rhododendron and Azalea Bookstore
... temperate species in cultivation in one volume with extensive photographic illustrations of nearly all taxa described. Each species is covered by a full botanical description. A second paragraph ... updated his practical, hands-on approach with more of the detailed information that gardeners need to choose and grow these luxuriant, beautifully blossoming plants. Highly recommended. 344 pp., 110 ...
home.earthlink.net

Species Rhododendron
... moss. Deciduous rhododendrons are propagated by seed, grafting or cutting. For deciduous azaleas, cuttings may need bottom warmth of 75° and artificial light to promote root growth. Do not cultivate ... known as alliances and aggregates composed of very closely related species. [Return to Top] For taxa outside of subgenus Rhododendron, this system eliminates three subgenera and two sections that are ...
home.earthlink.net
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Ranunculaeae Society
... be greatly harmed by poor drainage. Also, being relatively warm-blooded, they love sun, and need much of it to mature their wood for blooming season. Otherwise they require nothing ... premier clematis collector. There are nearly 900 plants in the Rogerson Collection currently, representing 500 taxa - species, hybrids and select forms, including many that are rare and of historical importance. ...
homepage.eircom.net

FLORA OF NORTH AMERICA - Scope & Rationale
... systematic conspectus of the North American flora. Taxa and geographical areas in need of further study also are identified in the flora. Taxa thought to have become extinct during the period ... the treatments (see also References below). Treatments are intended to reflect current knowledge of taxa throughout their ranges worldwide, and classifications are therefore based on all available evidence. ...
hua.huh.harvard.edu

Newsletter - Volume 18, No. 1
... biodiversity resources. Information about plant taxa is currently limited, but this will change as more herbaria link to the site. Curators in the U.S. who need assistance should visit http://gbif ... expect from a predominately post-glacial flora. Details are provided for allopolyploids, hybrids, and agamospermous taxa, as well as for "hotspots" in the Scandes, on the calcareous islands of Öland and ...
hua.huh.harvard.edu
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Hunt Institute: Plant Taxonomic Database Standards
... some nine years after the first, and, inevitably includes some changes. Although the need for stability has been a major consideration, political realignments have forced new concepts. ... names according to the degree of specificity needed. It identifies the elements that need to be considered—taxa, names elements (species, species aggregate, intergeneric hybrids and graft chimaeras, interspecific ...
huntbot.andrew.cmu.edu

Pteridophytes
... Australian National Herbarium Centre for Plant Biodiversity Research Home > ANBG | CPBR | ABRS > ferns > taxa Pteridophytes The ferns and their allies. Plants characterised by a very distinct alternation of generations ... unnatural group but the use of the term persists, largely out of convenience and the need for a handle for the 'ferns and related plants'. The pteridophytes are a collection of ...
www.anbg.gov.au




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