172 PITTONIA. 
_ setose-hairy; joints 6 to 9, rather large, their sides com- 
pactly and turgidly undulate-rugose. . 
Hills of the Mt. Diablo Range east of Oakland, and on 
adjacent plains toward Antioch ; the type collected by my- 
self in what are called the Briones Hills, 17 April, 1887, 
specimens being extant in U.S. Herb. and in my own. 
Taller specimens, and these with elongated leafy branches 
quite as long as the peduncles, were collected at Antioch, 
in 1889, by Brandegee; but these in Herb. Calif. Acad. 
(sheet 2770) are mixed with another and very different 
species. 
14. P. proximus. With the habit of P. tessellatus and about 
as tall, but slender, the leaves more elongated, not obviously 
ciliate, and the peduncles thinly and softly hirsute: petals 
consimilar, scarcely even short-unguiculate, the corolla 
therefore almost rotate: outer filaments broader and their 
terminal lobes rather acute: fruit narrow, cylindric oF 
merely oblong ; carpels only 9 to 12, their dorsal line more 
delicate, not darkened, the whole fruit pale and glaucous, 
Joints 7 or 8 or even fewer, less emphatically rugose on the 
sides and the rugæ not undulate. 
Represented in U. S. Herb. by two sheets, both from near 
Chico, Butte Co., one by Mrs. R. M. Austin, April, 1896, the 
other by H. E. Brown, April, 1897. In Herb. Calif. Acad. 
is an imperfect small specimen from Madison, Yolo Co., by 
Blankinship which perhaps also belongs here. 
15. P. eMararnatus. Stoutish, decumbent or reclining; 
the leafy branches } to 1 foot long, the peduncles not as long, 
with foliage and peduncles sparsely and shortly hirsute: 
leaves 2 inches long, obtuse or acutish, without callosity : 
corollas, saucer-shaped, cream-color, 1 to 1} inches broad, 
