228 ONAGRACE^E. CEnothera. 



* * Flowers few, with leafy bracts : calyx-tube short, obconic : leaves simple : tips of 



the calyx not free in the bud. 



23. CB. pterosperma, Watson. Slender, erect, 2 or 3 inches high, simple or 

 branched, more or less hispid or glabrous : leaves oblong-lanceolate, obtuse, entire, 

 6 to 9 lines long : flowers very small : petals obcordate, rose-colored, a line long or 

 less : capsule linear-clavate, 6 to 9 lines long, on a spreading pedicel half as long : 

 seeds nearly a line long, with thin incurved margins, minutely cellularly papillose. 

 -Bot. KingExp. 112, t. 14. 



Foot-hills of the Trinity Mountains, N. W. Nevada (Watson) ; S. Utah, Parry. Very peculiar 

 in the character of its seeds. 



8. GODETIA, Spach. 



Calyx-tube above the ovary obconic or shortly funnelform, deciduous ; lobes 

 reflexed. . Petals 4, broad and sessile, entire or emarginate or very rarely 2-lobed, 

 lilac-purple or rose-colored. Stamens 8, unequal, the filaments opposite to the 

 petals shortest ; anthers perfect, oblong, attached at the base and erect or arcuate. 

 Ovary 4-celled, many-ovuled : style filiform : stigma-lobes short, linear or roundish. 

 Capsule ovate to linear, 4-sided, somewhat coriaceous, loculicidally dehiscent. Seeds 

 ascending or horizontal, in 1 or 2 rows, obliquely angled, the upper surface with 

 a thin tuberculate margin. Annuals, simple or branched, erect ; leaves alternate, 

 denticulate or entire ; flowers mostly showy, in usually leafy racemes or spikes. 

 CEnothera Godetia, Torr. & Gray, Fl. i. 502 ; Watson, Proc. Am. Acad. viii. 596. 



A genus confined to the western coast of North and South America, chiefly Californian. Sev- 

 eral of the species are ornamental and have been introduced into cultivation. 



* Flowers in a strict mostly compact spike : capsule ovate to oblong : stems leafy. 



Calyx-tips not free in the bud : sides of the capsule not 2-costate : 



seeds in 2 rows. 



Flowers very large : stigma-lobes 3 lines long : capsule puberulent. 1. G. GRANDIFLORA. 

 Petals inch long or less : stigma-lobes very short : capsule villous. 2. G. PURPUREA. 

 Calyx-tips slightly free : capsule somewhat 2-costate on alternate 



sides : seeds in 1 row. 



Flowers in a short simple spike : petals 1 inch long or less. 3. G. LEPIDA. 



Flowers in lateral mostly crowded spikelets : petals half an inch 



long or less. 4. G. ALBESCENS. 



* * Flowers in a simple usually loose spike or raceme, mostly nodding in bud : capsule linear : 



seeds in 1 row : leaves distant. 



Capsule sessile : calyx-tips slightly free. 



Calyx-tube funnelform and villous ; lobes villous : capsule short, 



puberulent, attenuate from the base. 5. G. WILLIAMSON!. 



Ovary and short capsule villous : flowers small. 6. G. QUADRIVULNERA. 



Capsule puberulent, 8 to 14 lines long, not costate : flowers small. 7. G. TENELLA. 

 Capsule smoother, 8 to 18 lines long; sides 2-costate : flowers large. 8. G. VIMINEA. 

 Capsule pedicellate, not costate : calyx-tips not free. 

 Capsule attenuate at each end. 



Anthers purple : stigma-lobes linear : petals 8 to 15 lines long : 

 capsule 1 to 1^ inches long : leaves mostly entire. Cen- 

 tral and Northern California. 9. G. AMffiNA. 

 Stigma-lobes mostly short : petals 6 to 12 lines long : capsule 10 

 to 15 lines long, long- pedicellate : leaves often dentate : 

 nearly glabrous. Southern California. 10. G. BOTT.S:. 

 Tomentose-puberulent : stigma-lobes short : petals 3 to 6 lines 



long : capsule 6 to 14 lines long : pedicels short. 11. G. EPILOBIOIDES. 



Capsule abruptly narrowed at base. 

 Calyx and ovary with short spreading pubescence : stigma-lobes 



linear : capsule 4 to 9 lines long. 12. G. HISPIDULA. 



Puberulent : pedicels short : petals 2-lobed. 13. G. BILOBA. 



