NOVITATES OCCIDENTALES. 127 
particolored flowers that I have described in the Flora Fran- 
ciscana. The range of L. propinquus is considerable. It is 
at Santa Barbara and on Santa Cruz Island. I have seen it 
this year on Point Reyes, and Mr. Howell has lately sent it 
from Crescent City. 
Helianthella castanea. Stems low (a foot long or less), 
stout, rough-pubescent with short spreading hairs, simple and 
monocephalous, or as frequently bearing a pair of branches 
toward the base, these also monocephalous and equaling the 
main stem: leaves nearly as long as the stem, lanceolate, very 
scabrous, tapering to a distinct petiole: terminal head nearly 
2 inches broad, the lateral ones an inch or more: rays rather 
short (14 inch): achenes cuneate-obovate, 5 lines long, gla- 
brous throughout, comparatively little compressed (the cross- 
section narrow-rhombic) and not thin-edged, those of the ray 
very thick and nearly triquetrous, all dull black at the cuneate 
base, the middle and upper parts chestnut brown; apical 
notch short and deep, semicircular or subreniform; pappus 
none. 
Plentiful at the very summit of Mt. Diablo, where it was 
collected by the writer in the beginning of July, 1892. Re- 
lated to H. Californica, which is a tall slender plant with very 
thin and flat, black and shining achenes; the heads of flowers. 
also much smaller. 
Phacelia imbricata. Stems several from a stout perennial 
root, erect, slender, 2 feet high, simple below, above loosely 
paniculate, each pedunculiform branch bearing a pair of 
racemes: herbage pubescent throughout, the petioles and base 
of stem hispidulous with spreading or deflexed hairs: leaves 
all broadly lanceolate, acuminate, the lowest with a few 
lateral leaflets at base: flowers biserial and crowded, with 
distinct very slender pedicels: corolla small, bluish, the ovate 
segments in age closing upon the long-exserted filaments and 
so becoming persistent after flowering: fruiting calyces com- 
pressed and closely imbricated, the broad and deltoid-ovate 
outer segment conspicuous and larger than the others, these 
ovate-oblong, acutish, the margins of all hispid-ciliate, the 
