48 PITTONIA. 
Whited, 1896, n. 66. Swan Lake Valley, Klamath Co., Oreg, | 
24 May, 1896, E. I. Applegate. Eastern Oregon, W. C. Cusick, | 
1897, n. 1610. 
The distinctions between this and its near relative of north- f 
eastern California, C. strigosa, are brought out in the diagnosis. 
Compared with it, C. Watsoniana, of the corresponding dry 
region east of the middle Californian Sierra, is a plant of 
long and narrow foliage with less distinction of blade and 
petiole, and a pubescence which, though more copious, con- f 
sists of much longer and softer hairs invariably ; and the calyxes | 
and corollas of the two have their own marks in each. 
Of the six species of the genus thus far enumerated, not one | 
of the first five can reasonably be taken as equivalent to C. nana i 
(Lindl.), Raf.; for not one of them extends its range to that 
part of the Northwest which Englishmen of the first quarter of | 
the nineteenth century spoke of as being the region of the Rocky | 
Mountains. But in C. /asianthawe have a plant common enough | 
in that part of the Northwest whence, as I think, the seeds of d 
“ Nicotiana nana” must have come. This would be a good 
enough argument for the identity of my plant with that were it 
not true that several other species, as much like that figure as- 
this one is, occur in the same region. The very conspicuous 
hairiness of the corolla in many specimens, in allusion t0 
which I haye made the specific name, is something which should | 
have been observed by any botanist, had it existed in the original. | 
Nevertheless, in a few specimens which I can not exclude from | 
C. lasiantha this organ is as glabrous as in that of any species 
What is more decidedly against this as representing C. nant 
(Lindl.) Raf. is that it is too large; for Lindley’s plant in full f 
flower was only “1 or 2 inches high.’’ That circumstance viewed 
in connection with some others which I shall name later has re 
peatedly led me to doubt whether the real C. nana Raf. is not, — 
after all, C. pumila. + 
7. C. MACILENTA. C. nama. (Lindl.), Raf.? Rather smaller | | 
than C. lasiantha, as copiously leafy and floriferous, but herbage | 
