5. For Colorado species, Harrington (1 954) used "in" frequently but "ex" seldomly in the citing 

 of authorities. A semicolon separating authors appears often and may be equivalent to the 



6. Hybrid taxa are indicated by a multiplication sign (X). The hybrid formula follows, then 



synonyms, if any (e.g. Equisetum X nelsonii). 



7. Considerable variation exists between regional herbaria on their recognition of infraspecific 



taxa, and local Floras regarding their recognition. This accounts, in part, for the inclusion of 

 "identification sources", since often only one (e.g., IMF, FNA) source for our region includes 

 keys to infraspecific taxa. 



i.N. Jiiiuiiin iUO'l ( luckliM of Viisiruliij PkiiUs nl'lliL 1 Southern Kucki \ 



