ROSACEA. 65 



13. P. glaiKlulosa, Lindl. Bot. Beg. t. 1583 (1833) : P. Wrangeliana, 

 Lehm. Re vis. 49. t. 19 (1856). Erect, 1 — 2 ft. high, glandular-pubescent 

 and ill-scented : leaves pinnate ; leaflets 5—9, ovate or rhombic-ovate, 

 coarsely and doubly serrate : cyme lax, leafy -bracted : fl. small ; the pale 

 yellow obovoid petals scarcely equalling the calyx : stamens 25, in 1 row, 

 on the margin of the thickened disk : styles attached below the middle 

 of the ovary. Var. »va(lensis, Wats. Slender, scentless and scarcely 

 glandular : leaflets small, simply incised : floral bracts inconspicuous : 

 petals exceeding the calyx, light yellow. Var. reflexa. Cyme very lax. 

 few-fiowered : petals deep yellow, small, but equalling the calyx-lobes 

 and with them somewhat refiexed when fully expanded. Var. lactea. 

 Leaflets cuneate-obovate, simply and deeply toothed : corolla large, 

 exceeding the calyx, white. -In the mountains everywhere, from near the 

 sea-level to the higher wooded parts of the Sierra. Most probably com- 

 prising several species. The common type, which is of the Coast Range, 

 is more accurately represented in Lehmann's than in Lindley's figure. 

 The first variety belongs to the Sierra Nevada at almost subalpine ele- 

 vations. Var. reflexa is of the foot-hills, in dry ground, usually under 

 cover of shrubbery or in groves of pine. Var. lactea is of higher ele- 

 vations in Fresno and Kern counties. 



+-i- -i-i- -i-i- AnnuaJs or hiennials ; flowers inconspicuous; achenes minute, 



very numerous. 



14. P. millegraua, Engelm. in. Lehm. Ind. Hort. Hamb. (1849) : P. 

 rivalis, var. niillegrana, Wats. Tall, flaccid, soft-pubescent, leafy up to 

 the inflorescence : leaves 3-nate, the radical on long slender petioles ; 

 leaflets cuneate-obovate, obtusely serrate at apex only ; stipules ovate- 

 lanceolate, entire : cymes diffuse ; fl. very numerous ; petals yellow ; 

 stamens about 10 : achenes whitish. — Eastern slope of the Sierra, and east- 

 ward ; but also on the lower San Joaquin, on muddy banks of the river. 



15. P. bieuuis. Biennial, branched from the base, erect and rather 

 stout, 1 ft. high or more, the stems purple, leafy, the whole herbage 

 pubescent and minutely glandular : stipules oblong-lanceolate, obtuse or 

 acute, the lowest entire, the upper more or less toothed or lobed : leaflets 

 3 (rarely), cuneate-flabelliform, irregularly incised, the broad teeth or 

 lobes mucronulate : cymes mostly contracted and dense : petals small, 

 yellow, spatulate-oblong, scarcely equalling the calyx : stamens about 

 10 : achenes minute, whitish. -In moist places in the mountains, from 

 Butte Co. to Kern and San Luis Obispo. In habit and aspect very 

 distinct from those mostly extra-Californian plants which have been 

 referred to P. riralls. They are all annuals ; this certainly biennial. 



* * Perennials ; petals obovaie to linear ; stamens 10 (20 in one species), 



alternately long and short, the filainen's moie or less dilated 



throitgJiont. Genus Hokkelia, Ch. & Schl. 



•)- Cymes lax, dicltoloinons ; Ijractlets large, often exceeding the calyx-lobes. 



