464 RypBperc: Rocky MOountTAIN FLORA 
but consisting of short stiff straight hairs whenever present. 
This, the real S. Bigelovii, was distributed by Mr. Wooton, from 
the White Mountains of New Mexico, as S. Rusbyi, an error for 
which I am solely responsible. The species is nearer to S. Rusbyt 
than it is to S. scopulinus, which latter I have until recently as- 
sumed to be the typical S. Bigelovii.” These statements of Greene 
are correct in as far as that the specimens distributed by Wooton 
and referred to by Greene are the most like the original S. Bigelovit 
of any that we have in the herbarium of the New York Botanical 
Garden, but Wooton’s specimens have narrow leaves, the blades 
of the basal ones are not abruptly contracted at the bases, and 
the heads are smaller than in S. scopulinus, while those of the type 
of S. Bigelovii are much larger, even larger than those of S. con- 
tristatus. 
The treatment of Senecio in the New Manual of the Botany 
of the Central Rocky Mountains is fairly good. There are many 
cases, however, in which the authors have reduced species to 
synonymy under closely related species, where the writer is in- 
clined to keep them distinct, but where this is merely a matter 
of difference of opinion. But there are other cases in which 
such reductions are wholly unwarranted, misleading, and destruc- 
tive to real science. Such a case for instance, is where Senecio 
solitarius Rydb. is made a synonym of S. subnudus DC. A 
mere reading of the description of the former would show that it 
is related to the group comprising S. integrifolius Nutt., S. colum- 
bianus Greene, S. perplexus A. Nels. etc., while S. subnudus is 
related to S. aureus. Another case is where Senecio Flintii Rydb. 
is made a synonym of S. glaucescens Rydb. The former is closely 
related to S. exaltatus Nutt. and has a short crown with fascicled 
roots, characteristic of the S. integrifolius group, while S. glau- 
cescens has a distinct rootstock, and is related to S. anacletus 
Greene. 
Under Senecio perplexus A. Nels. we find the following state- 
ment: “(S. columbianus Rydb. in Fl. Col., not S. columbianus 
Greene, of which S. atriapiculatus Rydb. is a synonym.)"" The 
true typical Senecio columbianus Greene is found in Colorado 
and not uncommon. The only question in my mind is whether 
S. perplexus A. Nels. is really specifically distinct. The only 
