29 



SASBC. Gland scaletesa. 



Flowers yellow C. apieulatus, Howellii. 

 Flowers not yellow. C. Tolmiei. 



3A>?B$C Gland covered by a *cale which is often lacerate. 

 Anthers obtuse, not acuminate. 



Flowers bell-shaped. C. nanus, lilacinus, uniflorus. 

 Flowers globose. C albua, pulchellus. 

 Anthers acute and acuminate. 



■ 



Flowers yellow, C. Bmtharni 

 Flowers cream-colored. C. Purdyi 



Flowers rather purplish, neither yellow nor cream- colored 

 Petals broader above, mostly rounded C. Maweanus, 

 cseruleus, elegans. 



Petals broader below, acute. C. Lyallii. 

 Though I have -considerable material from near the sea I hare 

 done little field work on the species and my opinion is no better 

 than that of a closet botanist (which is seldom worth much), and 

 so is only tentative, but I have studied nearly every other species 

 in the field. 



Schcenocaulon Megarrhiza n. sp. 



Sterns from a thick, erect, coarse bulb 3-5 cm wide and about 1 

 <lm. long which is truncate at both ends and thickly covered with 

 coarse fibers Leaves 2-3 ft. lone, flat slightly narrower below on- 

 W, coarsely and vory strongly 13-ribbed, the widest about 8 mm. 

 wide and tapering to a long and thread-like tip, glaucous yellow- 

 ish-green, Nolina-like, smooth bnt with minutely scabrous edges, 

 [ax Stems % 3 ft. high, nearly round, strict, 2-3 mm. wide, end- 

 ing in a simple spike-like and rather dense raceme which is 1-1.5 

 ft, long. Floral bracts very broad, about 2 mm. long, dull, hya- 

 line. Pedicels about 1 mm. long, very stout, ascending, not join- 

 ted Flowers greenish, about 3 mm. broad, the base broadly bell- 

 fihaped to hemispherical and about 1.5 mm. long, segment* nearly 

 ; * mm. long, the broad and green midrib extended as a tail beyond 

 the cuneate to rhomboidal lower half or third which has its sides 

 produced as hyaline wings or ears rather deltoid in shape. Sta- 

 mens about | longer than the corolla, with relatively enormous 

 anthers about | M long. Ovary ovate, with mostly twisted tip, be- 

 coming a lanceolate and rather glaucous erect and 3-angled pod. 

 Styles 3, thick, tapering, a little recurved, stigmatic on the inner 

 face at tip. Guayanopa Canon Sierra Madre Mts. Chihuahna Mex- 

 ico, Sept. 23 1!)«>3. Lower Temperate Life Zone. 



Camassia Leichtlinii var. Watsoni n. van 



