eR ORRIN CHS DORN UO NSE Uie CUS St SN 
x ' re \aats ‘\ Nika Roar 
66 Muhlenbergia, Volume 3 _ . 
(L.) Kuntze, Pyrrocoma lanceolata (Hook.) Greene, Crepis 
gracilis (D. C. Eaton) Rydb., Lobelia cardinalis 1,., Hydro- 
phyllum Virginicum \,., Adenostegia ramosa (Nutt.) Greene, 
Ligusticum filicinum Wats., Gentiana calycosa Griseb., Thale- 
sta uniflora (L.) Britton, Spzesca gracilis A. Nelson, Astraga- 
lus loteflorus Hook., Saxifraga caespitosa \,., Ribes Cynosbati L., 
Petrophyton caespitosum (Nutt.) Rydb., Hutchinsia procumbens 
(L.) Desv., Cardamine umbellata Greene, Thelypodium Nut- 
tallit Wats., Arabis rugocarpa Osterhout. It is quite likely 
that Ligustecum affine A. Nelson, should be changed to Ligustz- 
cum simulans C. & R. 
Are all the newly made species good? Will they stand the 
test of time? It would not be surprising in so many publica- 
tions to find some that will not. Field study has hardly kept 
pace with the describing of species, and careful field study is at 
all times needful, particularly so in Colorado where there are 
such differences of prairie and mountain, dryness of desert and 
moisture of stream bank. It is likely, however, that most of 
them will keep their places. Dr. Rydberg has found it neces- 
sary to reduce to synonymy a number of species, and in a few 
instances species have been reduced to varieties, and I think 
properly so. I think that students of plants would much prefer 
that species should be distinguished by evident characters; that 
they should be plants really separable from other like plants; 
and it may be that a species should not be established by a sig- 
gle character, unless a fruit character. Cardamine tnfausta 
Greene (C. cardiophylla Rydb.), for example, is separated from 
C. cordifolia Gray, solely because of pubescence on the stem. 
The plants are of the same size, the leaves the same shape, the 
flowers and fruit the same, and the plants grow together. At 
most the later named plant is only a variety of the older one. 
Concerning the advisability of so many additional genera I 
can speak; but one can only regret so many changes, and hope 
that the nomenclature of our plants may soon become settled. 
Several years ago some of our leading botanists who were advo- 
