CoCKERELL: NORTH AMERICAN SPECIES OF Hymenoxys 479 
ferruginous ; pappus-pales long-pointed, white, ferruginous at 
extreme base (like the Star Valley plant). Another Sierra Valley 
sheet (hb. Mo. Bot. Garden) is clearly the same thing, but it has 
the pappus-pales wholly ferruginous, long-pointed but hardly half 
length of disc-corolla ; leaf-segments narrower ; inner bracts often 
bifid at end. The plant from near Edgwood has the leaf-seg- 
ments narrower than usual; outer bracts narrow; achene-hairs 
ferruginous ; pappus-pales aristate, white with a ferruginous tinge. 
The Shasta River plant has the achenes and pappus like the last. 
The plant from near Yreka has the achene-hairs deep ferruginous ; 
pappus ferruginous. The Star Valley plant (which Dr. Greene in 
litt. thought might prove distinct) has the appearance of the Cali- 
fornia ones, with large heads and clear yellow rays; the outer 
bracts are narrow and deeply divided, 13 in number; hair of 
achenes quite bright ferruginous ; pappus-pales strongly contrast- 
ing, pure shining white except the extreme base, which is ferrugi- 
nous. The plant grows to a height of 3 to 4 dm. 
All the above plants seem to me essentially the same. They 
agree with H. Richardsoni in the short pappus-pales, but the much 
greater height and mesophytic habit are distinctive. I cannot 
understand how anyone, after a careful study, can doubt the validity 
of 7. Lemmoni as a species. 
“ Hymenoxys Lemmoni Greenei subsp. nov. 
Picradenia biennis Greene, Pittonia, 3: 272, in part. 18098. 
(Not Actinella biennis Gray.) 
This plant is similar to the true 7. Lemmoni, but the heads are 
uniformly smaller, The basal leaves, as in HY. Lemmoni, are 
always divided ; the plant mentioned by Dr. Greene, with simple 
and linear basal leaves, is to be separated. Dr. Greene says, 
“probably only a winter annual,” but I think the plant is biennial. 
I take as typical of this subspecies Palmer's 267, collected in 
1877, “So. Utah, N. Ariz., etc.,” in herb. Mo. Botanical Garden. 
There is a single reddish stem, smooth and striate ; foliage abun- 
dant and erect, like true 4. Lemmoni; stem-leaves much as in 
true 7, Lemmoni, but broader, the foliage intermediate in breadth 
between H. Lemmoni and H. helenioides ; basal leaves about 11 
cm. long, pinnately divided, with lobes 2-3 mm. broad; heads 
