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



it is clearly distinguished by the erect capsule. It is a curious 

 fact that a species linking the small Calochorti of the wet 

 lands with the C . nitidiis section should be found at the very 

 point where the latter terminates its most southern extension. 

 The true C. nudtis, it will be noted, grows only on dry 

 slopes in the Sierra Nevada, from Plumas County, Cali- 

 fornia, southward. 



Giant Star Tulips. 



**** Petals covered ivith silky hairs; flowers and stent stout and erect. 

 Closely related to Group i of Mariposa. Plants growing in open 

 fields or hill-sides. Ml. Shasta, California, and north. 



y 14. Calochortus tolmiei Hook. & Am. 



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



Stem stout, erect, usually branched, 9 to 18 inches high; leaves 4 to 6 lines 

 broad, not greatly exceeding the stem, bracts foliaceous; petals 9 to 15 lines 

 long, very broadly obovate and scarcely acute, rather deeply pitted, covered 

 and fringed with long purple and white hairs; gland without scale, but the 

 upper circular edge with a dense fringe of reflexed hairs; anthers lanceolate 

 and acuminate, 2 to 3 lines long; capsule broadly elliptical, acutish at each 

 end, 10 to 15 lines long. 



C. tolmiei is frequently confused with C. furdyi. The 

 writer has seen specimens of the true C . tolmiei from the 

 hills west of the Willamette River in Oregon. Dr. Watson 

 also refers specimens from Mt. Shasta, California, and Mt. 

 Adams, Washington, to this species. The original locality 

 is " Banks of the Walamet River." 



15. Calochortus purdyi Eastwood. 



Plate XV. 



Calochortus purdyi Eastwood, Proc. Cal. Acad. Sci., 3d Ser. (Bot.), Vol. I, 

 p. 137, PI- XI, figs. 8«-8/. 



Glabrous and glaucous; stem 2 to 3 dm. [18 to 16 inches] high, rather 

 stout, erect, branching, two to many-flowered, not bulbiferous at base; radical 

 leaf solitary, sheathing the stem, linear-lanceolate, acuminate, 2 dm. [8 inches] 

 long, I cm. [6 lines] wide, the upper surface bright green, the lower glaucous 

 and ribbed with tlie filiform nerves; bracts foliaceous, lanceolate-acuminate, 

 amplexicaul, upper ones opposite; pedicels equalling or slightly surpassing 



