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CHROMOSOME NUMBERS IN WESTERN GRASSES
Author(s) -
Reeder John R.
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.tb07611.x
Subject(s) - biology , eragrostis , taxon , genus , chromosome , botany , chromosome number , poaceae , zoology , karyotype , genetics , gene
Chromosome numbers are reported for 221 collections from eleven western states. These records represent 85 species included in 48 genera. Counts for the following species are here presented for the first time: Melica spectabilis, Blepharidachne kingii, Eragrostis obtusijlora, Hilaria rigida, Redfieldia flexuosa , and Sporobolus interruptus . The record for Redfieldia is also the first for that genus. In addition, numbers which differ from those in the literature are recorded for ten species, in three cases two different numbers for the same taxon. Cytological evidence is also presented indicating that Hilaria jamesii and H. rigida have hybridized and that the F 1 has backcrossed to both parents.