252 ONAGRACEAE. 



Fields and prairies, western Oregon to California; first found in the Ump- 

 qua Valley, Oregon, by Douglas. 



Godetia arnottii (T. & G.) Walp. Glabrous, leafy especially near the 

 top; stems 20-40 cm. high; leaves thickish, oblong to oblong-lanceolate, 

 entire, 2-4 cm. long; flowers crowded; petals purple; capsules glabrous, 8- 

 ribbed, 1-1.5 cm. long. 



Open places, Willamette Valley, Oregon, and southward. 



331. BOISDUVALIA. 



Erect leafy annual herbs; leaves alternate, sessile, simple; 

 flowers small, in leafy simple or compound spikes; calyx- tube 

 funnelform above the ovary, 4-lobed; petals 4, 2-lobed, purple or 

 white; stamens 8, those opposite the petals shorter; anthers 

 attached near their bases, erect; ovary 4-celled, several-ovuled ; 

 capsule membranaceous, ovate-oblong to linear, nearly terete, 

 acute, sessile, dehiscent to the base; seeds 3-8, in one row in 

 each cell. 



Leaves of the inflorescence broad; capsule septifragal. B. densiflora. 



Leaves of the inflorescence narrow; capsule loculicidal. B. strict a. 



Boisduvalia densiflora (Lindl.) Wats. Erect, simple or with a few branches 

 below, hoary-puberulent throughout or nearly glabrous, 3090 cm. high; 

 lower leaves lanceolate, acuminate, denticulate, 2-6 cm. long; upper leaves 

 gradually shorter and sometimes broader, ovate, acuminate, nearly entire, 

 crowded; spikes dense; corolla 6-8 mm. broad, purplish; capsules oblong, 5-8 

 mm. long, the partitions not adherent to the valves in dehiscence; seeds 36 

 in each cell. 



In low meadows. 



Boisduvalia stricta (Gray) Greene. Erect, simple or rarely branched 

 below, villous throughout, 30-40 cm. high; leaves all alike, lanceolate, acute, 

 entire or denticulate, 23 cm. long; flowers in the axils of the upper leaves 

 and occasionally of the lower also; corolla 2-3 mm. long, purplish; capsules 

 slender, acuminate, 8-10 mm. long; partitions adherent to the valves; seeds 

 6-8 in each cell. 



In dried-up ponds and swales, rare. 



332. GAYOPHYTUM. 



Very slender caulescent branching annuals; leaves alternate, 

 linear, entire; flowers axillary; calyx-tube not prolonged beyond 

 the ovary, 4-parted; petals 4, white or rose-colored, very small, 

 obovate or oval, with a very short claw; stamens 8; anthers 

 broad or rounded, attached by the middle, those opposite the 

 petals on shorter filaments and usually sterile; ovary 2-celled; 

 fruit a dehiscent capsule; seeds few-many, naked, in one row. 



Gayophytum ramosissimum T. & G. Erect, with usually many slender 

 branches, glabrous below, puberulent above, 15-40 cm. high; leaves linear 

 or linear-lanceolate, 1-4 cm. long, acute, attenuate at the sessile base; flowers 

 pink, small, 2-4 mm. broad, pedicelled; capsules oblong or somewhat club- 

 shaped, often torulose, 6-12 mm. long, spreading, on slender pedicels, some- 

 times deflexed; seeds not hairy. 



Dry soil, especially in open woods. 



