Flora of South- Fork of Kings River. 45 



ONAQRACE/E. Evening Primrose Family. 



KEY TO THE GE:NERA. 



k PODS SPLITTING INTO FOUR PARTS WHEN RIPE. 



* Seeds furnished with a tuft of wool. 



Calyx tube short or wanting. . Epilobium, Willow-herb. 



* * Seeds without any wool. 



Anthers versatile. 



Calyx tube not produced beyond the ovary; capsule 2-celled ; 

 stamens in 2 sets, one sterile. . . . Gayophytum! 

 Calyx tube produced beyond the ovary into a linear or funnel- 

 shaped tube ; anthers uniform. 



CEnothera, Evening Primrose. 



Anthers attached by the base. 



Calyx tube funnel-shaped, the lobes reflexed; petals sessile, 



stamens in 2 sets, one shorter. 



Godetia, Farewell to Spring. 



Calyx tube funnel-shaped, the lobes reflexed ; petals with claws ; 



stamens in 2 sets, one often sterile. . . Clarkia. 

 Calyx tube funnel-shaped, the lobes erect; petals sessile, 2-lobed. 



, Boisduvalia 



§ k PODS NOT SPLITTING OPEN WHEN RIPE, SEEDS 

 1-4. 



Leaves alternate; parts of the flower in fours ; stamens 8, in 2 



sets, one sterile Heterogaura. 



Leaves opposite ; parts of the flower in twos ; fruit a 1-2-seeded 



burr. . . . Circsea, Enchanter's Nightshade. 



Epilobium Watsoni Trelease. Stems stout, 3 feet high, pale 

 green, with short, closely appressed pubescence of spreading 

 hairs. Leaves opposite, sessile, lanceolate, 1-2 in. long, serru- 

 late, with glandular teeth. Flowers rose-color, ^ in. in diameter. 

 Millwood, in wet places. 



Epilobium glaberrimum Barbey. Stems branching from 

 the base and above, smooth throughout. Leaves narrowly 

 oblong to lanceolate, 1-2 in. long, sparingly serrulate, glaucous. 

 Flowers rose-color, % in. long. Pods linear, very slender, 1-3 in. 

 long, on long, slender peduncles 1-2 in. long, Millwood and 

 near Big Boulder Creek. This grows in the neighborhood of red- 

 wood forests. 



Epilobium brevistylum Barbey. Stems slender, simple, 

 from a few inches to a foot high, smooth to the inflorescence. 

 Leaves oblong to lanceolate, an inch or less long, distant, spar- 

 ingly serrulate with blunt teeth or entire. Flowers few in the 



