124 CALIFORNIA ACADEMY OF SCIENCES. [Proc. 30 Ser. 



long, 3-4 lines broad at base; flowers five to ten; sepals greenish white, 

 ovate-lanceolate, acute; petals white, broadly fan-shaped, denticulated, 

 obtuse; scale triangular, ascending, appressed on upper portion of gland, 

 which has many short white hairs just above it, remainder of petal nude; fil- 

 aments slender; anthers i line long, oblong-obtuse; capsule short, oblong, 

 6 lines wide, 8 lines long. 



A native of California, found on the lower mountains 

 and hills back of Oakland, Berkeley, and Mills Seminary, 

 and on Mt. Tamalpais. 



"Oakland, California." 



The species was long confused with C . unijlorus, and was 

 described as C. collinus by J. G. Lemmon. Professor E. L. 

 Greene called the writer's attention to the earlier description 

 of Wood. 



C, umbellatus can be confused only with C. unijlorus, 

 from which its lack of bulblets and the situation in which it 

 grows, as well as its color, easily distinguish it. It varies 

 ^but little. 



**'* Petals nude or only lower portioii hairy; flowers campanulate; plants 

 growing in open wet meadows. 



•y 12. Calochortus uniflorus Hook. & Am. 



Calochortus uniflorus Hook. & Arn., Bot. Beech. Voy. Suppl., 1841, p. 398, 

 Tab. XCIV. 



Stem low, flexuous, but often stout, usually branched, 4-8 inches high, 

 with one to four bulblets below the surface; radical leaves broad, 4-6 lines 

 wide, exceeding stem; bracts linear-lanceolate, long and conspicuous; 

 flowers four to ten, in one to three umbels, on long flexuous pedicels 3-10 

 inches long; sepals ovate, lanceolate-acuminate, greenish lilac; petals cuneate, 

 somewhat truncate, denticulate, 10-12 lines long, color lilac, often with a 

 purple spot on each side of the scale, naked above, sparingly hairy imme- 

 diately above the gland; gland shallow, not pitted, a narrow triangular scale 

 appressed upward over upper center; filaments slender; anthers obovate- 

 obtuse, lilac, 2 lines long, one-half length of filaments; capsule elliptical. 



Except in the spots on petal or sepal there are few color variations. 



From Monterey, California, northward in the Coast 

 Range to Grant's Pass, Oregon. Found in wet meadows. 



C. unijlorus was originally described by Hooker and Arn- 

 ott from specimens collected on the Beechy Expedition. 

 The specimens were without doubt collected either in the 



