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HENRICKSONIA (ASTERACEAE‐COREOPSIDINAE), A NEWLY DISCOVERED GENUS WITH A PALEACEOUS PAPPUS FROM NORTH‐CENTRAL MEXICO
Author(s) -
Turner B. L.
Publication year - 1977
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1977.tb07607.x
Subject(s) - heliantheae , asteraceae , biology , genus , botany , zoology
A new genus, Henricksonia , containing the single species H. mexicana , has been described from a locality in north‐central Mexico. It is unique among the genera of the subtribe Coreopsidinae in possessing a pappus of well‐developed scales such as frequently occurs in other subtribes of the Heliantheae. The discovery of four, previously uncollected, monotypic genera among several tribes of the Asteraceae from this region over the past several years suggests that the area is a primary center of diversification for this large family.