242 GENTJANACE.E. 



3. A, yestita, Hook. & Am. Densely floccose- woolly, even to the 

 outside of the corolla: leaves ovate to oblong-lanceolate, very acute or 

 acuminate, often subcordate, short-petioled or the upper sessile: only 

 the terminal umbel at all peduncled, the others sessile: corolla purplish; 

 hoods nearly erect, venlricose, slightly surpassing the anthers, somewhat 

 truncate, the inner angles involute, the vomer-shaped crest-like horn 

 attached up to the summit of the hood and not exserted. Alameda and 

 San Francisco counties, and southward. 



4. A. Californica, Greene. General aspect of the last, but stouter 

 and low, seldom 2 ft. high: leaves ovate or oblong, 24 in. long, sharply 

 acuminate: umbels sessile : corolla purplish; hoods dark-maroon, nearly 

 orbicular, attached centrally and lying partly below the anthers, 2-valved 

 half way down the back, destitute of horn. Mt. Diablo Range. 



* * Glabrous species. 



5. A. ecornuta, Kell. Herbage dark almost purplish green: stem 2 

 3 ft. high: leaves 3 5 in. long, from deltoid-ovate to ovate-lanceolate, 

 sessile by a cordate base: umbels mostly at naked summit of stem and 

 axillary to mere bracts; pedicels slender: fl. dark red-purple; hoods 

 oblong, obliquely truncate and acutely angled, attached near the base, 

 destitute of horn: follicles smooth and glabrous. Napa Co. and north- 

 ward, in the higher mountains. June. 



6. A. fascicularis, Dcsne. Slender, 23 ft. high: leaves in whorls 

 of 3 5, .or the lower and uppermost opposite, linear to linear-lanceolate, 

 2 5 in. long, short-petioled: slender-peduncled umbels many, often in 

 whorls; pedicels and calyx often puberulent: fl. small, flesh-color or 

 purplish; column of filaments half as long as the anthers; the slender 

 horn subulate, erserted from the hood and incurved over summit of the 

 stigma. In low plains of Alameda and Santa Clara counties; perhaps of 

 more general distribution in our district. 



2. SOLANOA, Greene. Low and rather slender perennial, differing 

 from the preceding genus in having lunate rather than triangular 

 anther wings, and the hoods split down both sides into 2 valves, and des- 

 titute of horn or appendage. 



1. S. purpurascens (Gray), Greene. A few inches to 1 ft. high, 

 decumbent; herbage canescently puberulent: leaves cordate-ovate, 

 obtuse, 1 in. long or more: umbels globose and dense, on peduncles 

 exceeding the pedicels : fl. purplish-red, about 2 lines long. Mountain 

 summits of Sonoma Co., near the Geysers. June. 



ORDER LXIX. GENTIANACE/E. 



Herbs with watery and bitter juice, mostly opposite simple entire 

 Bessile leaves, no stipules, and complete regular 5-merous flowers. Calyx 



