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CHROMOSOME NUMBERS AND TAXONOMIC NOTES FOR ROCKY MOUNTAIN UMBELLIFERAE
Author(s) -
Crawford Daniel J.,
Hartman Ronald L.
Publication year - 1972
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.1537-2197.1972.tb10109.x
Subject(s) - biology , taxon , botany , chromosome number , subspecies , chromosome , zoology , karyotype , genetics , gene
Chromosome numbers are reported for 111 collections of Umbelliferae, which represent 38 species belonging to 23 genera. Three of these genera, Aletes, Neoparrya , and Musineon , have not been counted previously. In addition, first counts are presented for Angelica grayi, A, roseana, Cymopterus acaulis, C. bulbosus, C. longipes, C. montanus, Lomatium foeniculaceum subsp. macdougalii, L. megarrhizum, L. nuttallii, L. orientate , and L. simplex . Our reports of polyploidy in Ligusticum ported (hexaploid, 2n = ca. 66) and in Pteryxia terebinthina var. calcarea (tetraploid, 2n = 44) are the first for these taxa. The counts of 2n = 22 for Harbouria trachypleura differ from the previous report of 2n = 20.