42 PITTONIA. 
the most remarkable of all, as perfectly imitating those saxi- 
frages in which the flowers are very few and scattering, the 
absent ones being represented by clusters of bulblets. With 
its few and irregularly disposed slender deflexed pedicels, this 
plant distinctly suggests a Spurrey. 
4 
REVISION OF CAPNOREA. 
When some eight years since I moved the retirement of the 
name Hesperochiron, in favor of the earlier and therefore rightful 
Capnorea of Rafinesque, I made no study of the species, admit- — 
ting only three, the third a rather newly proposed one of my own, — 
The genus is strictly far-western, having perhaps its center of f 
distribution in that natural region embraced within eastern 
Oregon and Washington and adjacent Idaho. The zealous col- 
lecting that has been done in that still rather new field, during 
the last decade, and largely under the patronage of the Botani- 
eal Division of the U. S. Department of Agriculture, has re- 
sulted in the accumulation, at the National Herbarium, of an 
extensive and valuable series of CAPNOREA sheets. An inspection 
of these has convinced me of the existence of several species | 
hitherto unpublished; and I have undertaken, first, to determine 
the originals of the two species for some years past fully recog- 
nized, and second, to make out characters on which the species, 
few or many, may be established. The first of these tasks is, 48 
usual, the really difficult one. 1 
CAPNOREA was founded, by Rafinesque, on a plant which — 
Lindley had published in 1824 under the name of Nicotiana 
nana. Both the description and the figure in the Botanical 
Register are so bad as to render it almost incredible, to one who 
has seen a Cafnorea growing, that any species of this genus was 
meant. The corolla, both as described and as figured, is that of 
a Wicotiana, than which no sympetalous corolla can be much fur- 
her removed than that of Capnorea; and that such a caricature 
