436 



HYDROPHYLLACEJE. 



Ovules 4 or more on each placenta; capsule not less than 6-seeded; stamens 

 shorter than (rarely equaling) the corolla; annuals. 

 Corolla-tube with internal scales or appendages. 

 Leaves pinnatifid; corolla open-campanulate, twice the length of the 



calyx 1. P. Douylasii. 



Leaves entire or mostly so. 

 Corolla narrow, 3 lines long or less, little larger than the calyx .... 



2. P. circinatiformis. 



Corolla rotate-campanulate, 6 to 9 lines broad, much longer than the 



calyx • 3. P. divaricata. 



Corolla-tube without appendages; leaves coarsely toothed; corolla nar- 

 rowly funnelform, limb 3 lines broad 4. P. suaveolens. 



Ovules 2 to each placenta; capsule 1 to 4-seeded; stamens exserted or 

 included ; corolla-tube with appendages. 

 Leaves pinnately parted or divided, the divisions pinnately toothed or 

 incised. 



Fruiting sepals chartaceous, oblong to broadly ovate ; stamens not 



Fruiting sepals herbaceous. 

 Leaf-divisions rather coarse; fruiting sepals linear-spatulate to obo- 



vate; stamens exserted; perennial (?) .... 6. P. ramosissima. 

 Leal-divisions fine; annuals. 

 Fruiting sepals linear-spatulate to obovate; appendages with free 



pointed apex; stamens little or not at all exserted 



7. P. distans. 



Fruiting sepals linear; appendages entirely adnate; stamens con- 

 spicuously exserted 8. P. ianacetifolia. 



Leaves with shallow lobes, not parted or divided; annuals. 



Leaves entire or pinnately parted or divided into 3 to 7 entire lobes, the 

 terminal frequently largest. 

 Stamens conspicuously exserted, bearded at the middle; perennials or 

 biennials. 



Herbage pubescent and hirsute 11. P. Calif or nica. 



Herbage hispid-bristly with stinging hairs . . . 12. P. nemoralis. 

 Stamens glabrous, included; annual .... . . 13. P. Breweri. 



1. P. Douglasii (Benth.) Torr. Branched from the base with 

 ascending or decumbent stems 4 to 8 in. long, or dwarf and but H in. 

 high; herbage puberulent and hirsute with mostly spreading hairs; 

 leaves elongated-oblong or linear in outline, pinnatifid or pinnately 

 parted into several or many lobes, the terminal not larger; flowers 

 loosely racemose; pedicels slender, frequently longer than the flowers; 

 sepals spatulate, 1 to 3 lines long, £ to £ the length of the open- 

 campanulate light blue corolla; internal appendages semi-oblanceo- 

 late; style 2-cleft above the middle; ovules to each dilated placenta 

 12 to 14; capsule ovate, mucronate; seeds scrobiculate. 



Sandy soils near the ocean: Lake Merced to Monterey and south- 

 ward. Antioch (ovary especially hairy on each side near base of 

 style; ovules as many as 24 to each placenta; stamens dilated toward 

 the base and sparsely hairy). Mar. -Apr. In habit suggestive of 

 Nemophila insignis. 



2. P. circinatiformis Gray. Diffusely branching from the base, 

 5 in. high, puberulent and hispid; leaves elliptic to oblong-lanceolate, 

 parallel-veined, entire, strigose-hispid; flowers short-pediceled or at 

 first nearly sessile in dense racemes or spikes; sepals in fruit linear- 



exserted; annual 



5. P. ciliata. 



Stamens exserted 

 Stamems included 



10. P. Rattani. 



'tefolia. 



