ROSE FAMILY. 



283 



6. P. elata Greene. One and one-half to 2 ft. high; herbage 

 glandular, pilose-pubescent; radical leaves G to 12 in. long, the leaflets 

 15 to 19, thin, cuneate-obovate, \ in. long or less, once or twice 

 incisely cleft; flowers solitary or in 3's; bractlets of the calyx equal- 

 ing the segments, lanceolate; petals spatulate, white; stamens 10, 

 5 short and with filiform filaments, the other 5 with filaments deltoid- 

 dilated at base. 



Middle North Coast Ranges from Howell Mountain and Calistoga 

 northward to Elk Mountain, Lake Co. July. 



7. P. Kelloggii Greene. Stems stout, ascending or reclining, 1 to 

 2 ft. long; herbage glandless, white-silky with short dense hairs; 

 radical leaves 4 to 10 in. long, the leaflets obovate, coarsely toothed, 

 j to 1 in. long; calyx-tube cup-shaped, its lobes lanceolate, equaled 

 by the oblong entire bractlets; petals white, spatulate-oblong, 3 lines 

 long. — (Horkelia Californica C. & S. var. sericea Gray.) 



Alameda to Pacific Grove. June. Fragrant acc. to Kellogg, 

 scentless acc. to Greene. 



8. P. tenuiloba (Gray) Greene. Stems about 1 ft. high; radical 

 leaves 4 to 6 in. long, mostly villous with grayish hairs; leaflets 8 to 

 15 pairs, 2 or 3 lines long, cuneate-obovate, deeply 4 to 8-cleft into 

 linear lobes, the segments rather less than \ line wide; upper leaves 

 with fewer leaflets, these narrow and few-lobed or linear and entire; 

 flowers in close cymes; calyx 2 lines long, with linear lobes; petals 

 narrowly cuneate, notched at apex, exceeding the calyx. — (Horkelia 

 fusca var. tenuiloba Torr.) 



Laguna of Santa Rosa Creek, Bigeloiv, 1854. Very rarely collected. 



Var. Micheneri (P. Micheneri Greene). Leaves 3 in. long, 

 glabrous when young, glabrate in age; leaflets crowded, the lobes 

 narrowly oblong, obtuse; cymes very much condensed; petals cuneate- 

 obcordate; filaments broadly dilated, of nearly uniform breadth from 

 base to apex. — Mt. Tamalpais, Michener, June 1, 1892. 



9. P. Bolanderi (Gray) Greene. Leaves tufted from the branch- 

 ing crown of a perennial root, hoary-pubescent, 1 to 2 in. long; leaf- 

 lets cuneate-obovate, 2 or 3 lines long, toothed or cleft at apex, the 

 teeth acute; flowering branches very sparingly leafy, 2 to 10 in. high, 

 the flowers in a rather open cyme; calyx 2 lines long, about equaling 

 the white oblong-spatulate petals; calyx-lobes and bractlets lanceolate; 

 achenes minutely granular. — (Horkelia Bolanderi Gray.) 



Dry hills about the southern shores of Clear Lake; to be expected 

 in northeastern Napa Co. July. 



9. AGRIMONIA L. Agrimony. 

 Perennial herbs with pinnate leaves and serrate leaflets. Flowers 

 yellow, in racemes. Bracts 3-cleft. Calyx-tube turbinate, contracted 

 at the throat and the upper part beset with a ring of hooked prickles, 

 indurated in fruit and enclosing the 2 achenes; calyx-limb 5-cleft, the- 

 lobes closing over the throat after flowering. Stamens 5 to 15. 

 Styles terminal. (Name a corruption of the Greek word argema. a 

 disease of the eye, the plants reputed to be medicinal.) 



