HYDROPHYLLACEAE. 299 



9. P. whitlavia Gray. About 3 dm. high, loosely branching, 

 hirsute and glandular; leaves ovate or deltoid, incisely toothed; 

 calyx-lobes linear; corolla with cylindraceous ventricose tube, 

 usually about 2 cm. long and twice the length of the lobes, purple; 

 appendages to the exserted filaments hairy. 



Occasional on low hills and in the chaparral belt. Verdugo 

 Hills; San Gabriel and Santa Ana Mountains. 



10. P. parryi Torr. Stems more or less branching, the branches 

 somewhat spreading; herbage hirsute or somewhat hispid and 

 glandular; leaves ovate, irregularly and incisely doubly toothed or 

 laciniate or the lowest sometimes pinnately lobed, the upper 

 longer than the petioles, the lower on rather long slender petioles; 

 racemes very loose; pedicels filiform, widely spreading; calyx-lobes 

 narrow; corolla cleft beyond the middle, rotate-campanulate, deep 

 violet, 2 cm. broad; filaments bearded, exserted; ovules on each 

 placenta 20-30, and seeds 15-20. 



Occasional in the chaparral belt in the interior region. Rather 

 common in the Santa Ana Mountains and throughout the western 

 part of San Diego County. 



11. P. longipes Torr. Much resembling the last but more 

 slender, loosely branching; cauline leaves roundish-oval or sub- 

 cordate, coarsely and obtusely 5-8-toothed, about 12 mm. long, all 

 shorter than the petioles; corolla about 1 cm. long, nearly white, 

 5-cleft barely to the middle; ovules on each placenta 8-10; seeds 

 fewer. 



"Rare and local in the San Gabriel Mountains," Davidson. 



12. P. brachyloba (Benth.) Gray. Stems branched, erect, 3-6 

 dm. high, roughish-pubescent, viscid-glandular above; leaves pin- 

 natifid, elongated, oblong or spatulate, short-petioled, lobes 7-15, 

 entire or obtusely few-toothed; spikes crowded, solitary or gemi- 

 nate, at length much elongated and slender; pedicels very short; 

 corolla white, campanulate, the lobes about half the length of the 

 tube; the long narrow appendages nearly free from the stamens; 

 ovules about 6, rarely more, on each placenta; capsule oblong-oval, 

 very obtuse, membranous, shorter than the narrow spatulate calyx- 

 lobes; seeds oval, reticulated. 



Frequent in the upper portions of the chaparral belt of the San 

 Gabriel Mountains. April-June. 



13. P. douglasii (Benth.) Gray. Stems branched from the base; 

 the branches prostrate or decumbent, 1-2 dm. long; herbage pubes- 

 cent and hirsute with mostly spreading hairs; leaves elongated- 

 oblong or linear in outline, pinnatifid or pinnately parted into 

 several-many pairs of lobes, the terminal lobe not larger nor parallel- 

 veined; racemes becoming elongated; pedicels filiform, 1-2 cm. long; 

 calyx-lobes spatulate; corolla rotate-campanulate, pale blue, about 

 1 cm. broad; appendages semi-oblanceolate; ovules to each dilated 

 placenta 12-14; capsule ovate, mucronate; seeds roundish, oval, 

 scrobiculate. 



Frequent near the coast along the borders of the sand-dunes. 

 Much resembling some of the large-flowered Nemophilas. 



