More Genus entries
[ Usnea ]
[ Usoricum ]
[ Usteria ]
Hierarchical position of the Genus Usoricum
Individual specimen entries are published in the sample database supplied with
The Compleat Botanica for species or varieties of this supra-generic taxon.
For a description of the methodology followed in establishing this hierarchy see the note
Nomenclature used in The Compleat Botanica.
Last reviewed November 01, 2004
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