114 PITTONIA. 
16. C. pENTICULATA — Krynitzkia denticulata, Greene, 
Bull. Cal. Aead. i. 205; K. muriculata, Gray, ll. ce. in part.— 
Readily distinguishable from C. muriculata by the dark 
brown color of the nutlets, their sharper outline and manifest 
dorsal ridge (much like those of some Amsinckias), as well as 
by a very stout habit. Apparently confined to the region (so 
strangely abounding in peculiar plants), lying just along the 
eastern base of the middle California Sierra. 
17. C. potycarpa. Coarse and stout but low and diffuse, 
6—10 inches high, very hispid throughout, but more especially 
upon the calyx, which has a coat of white appressed setose 
pubescence beneath the bristles: flowers biserial in innumer- 
able short crowded axillary and terminal spikes: calyx 2 lines 
long, the segments with somewhat foliaceous-dilated and 
spreading tips: nutlet ovate-deltoid, acute, little more than 
4 line long, gray flecked with brown, the surface nearly as in 
C. muriculata, the elevations rather more numerous ; groove 
closed above, the small triangular areola and nearly divaricate 
basal furcation open. 
Around the Tahoe Ice Company's pond, two miles below 
Truckee, Cal., C. F. Sonne, June and August, 1887. 
Said to be abundant in its locality: the nutlets, much 
smaller than in C. muriculata, have also a broad truncate 
base and open bifureation. In habit the plant is most like 
C. erassisepala, though with shorter and far more numerous 
spikes. The calyx is very promptly deciduous. 
18. C. BARBIGERA — Eritrichium barbigerum, Gray, Syn. 
Fl 194; Krynitzkia, Gray, Suppl. 273.—This and the next, 
while probably confluent, are very distinct from C. ambigua; 
for their nutlets are of the lightest gray, almost white, and 
are roughened with very prominent though not sharp murica- 
tions. 
19. C. INTERMEDIA = Eritrichium intermedium, Gray, 1. c. 
and Krynitzkia, l. c. 
