NYBG.org: Catalogue of Vascular Plant Species of Brazil
Species of Central and Northeastern Brazil Catalogue. Vascular Plant Type Catalogue ... A Guide for Use of the Virtual Herbarium. History of the Virtual Herbarium ...
sciweb.nybg.org/Science2/hcol/abc/abcindex.asp
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cycadsetseq.html
... accepted that the Cycadophyta and the Ginkophyta are ... Cycadophyta. There are ten or eleven genera of cycads containing about one hundred species. ...
www.humboldt.edu/~rar1/Bot105/cycadsetseq.html
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Cycas circinalis - Wikispecies
Divisio: Cycadophyta. Classis: Cycadopsida. Ordo: Cycadales. Subordo: Cycadineae ... This page was last modified on 25 April 2009, at 22:45. ...
species.wikimedia.org/wiki/Cycas_circinalis
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The Gymnosperm Database: Home Page
conifers.org: The Gymnosperm Database: natural history, botany and taxonomic information on conifers, cycads, ginkgo and related plants.
conifers.org/index.html
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