112 



SUNDEW FAMILY 



low to form leafy mats, 4 to 12 in. high, 

 from a perennial root. Herbage ashy-pu- 

 bescent. Basal leaves oblanceolate or spatu- 

 late, entire, obtuse, Y\ in. or less long; 

 stem-leaves sessile, clasping. Flowers pur- 

 plish. Sepals hairy. Pods straight, 1 to l l / 2 

 in. long, erect or widely spreading, or even 

 deflexed. — Of high altitudes, as on Mt. 

 Dana. 



7. A. lyallii Wats. Similar to A. lemmonii but less branched, 

 sometimes with erect stems 1 or 2 ft. high, usually much 

 lower, the herbage green Sepals not hairy. Pods nearly 

 erect and straight. — Mono Co., reaching the crest of the 

 mountains at Mt. Dana and extending to Macomber Ridge 

 and Tuolumne Meadows. 



15. STREPTANTHUS. 



1. S. tortudsus Kell. A glabrous branching annual, l / 2 to 

 3 ft. high. Lower leaves oblanceolate, 

 petioled, entire or serrate; middle and 

 upper leaves oblong ovate or roundish, 

 obtuse, closely sessile and clasping the 

 stem, y 2 to \y 2 in. long. Flowers race- 

 mose, pale yellow or purplish, J4 to V* 

 in. long, on pedicels % in. or less long. 

 Sepals acuminate, the tip usually re- 

 curved. Pods very slender, 2 to 6 in. 

 long, recurved. 



This smooth, often purplish leaved 

 annual usually grows ^ to 3 ft. high 

 throughout the pine belt, where it is 

 common. It is always freely branched, 

 but when the central axis is very short and the lateral 

 branches much developed, as is often the case at high alti- 

 tudes, it is the form known as var. orbiculatus Hall. In this 

 variety the flowers are smaller and usually of a deep-purple 

 color. 



DROSERACEAE. Sundew Family. 

 Bog-herbs, mostly glandular-hairy. Flower-parts wither- 

 ing-persistent. Petals and stamens borne on the calyx. 



1. DROSERA. Sundew. 

 1. D. rotundifolia L. Round-leaved Sundew. Leaves all 

 in a tuft at base, roundish, J / 2 in. or less across, hairy- 



