ROSACE.E. 67 



saudy soil, near the bay at Alameda ; also above Lake Merced in San 

 Francisco Co., and near Santa Cruz, Parry. 



-)— -1— Cifmes nsually more coadensed ; bractlets smaller than the cahj.r-lobes. 

 ++ Leaflets in many pairs, deeply incised or lohed. 



20. P. Parryi, Greene, 11. cc. Slender stems 6—10 in. high from a 

 tnfted leafy candex : herbage dark green with a sparse villous pubescence 

 and some glands about the inflorescence : leaflets cuneate-obovate, cleft 

 scarcely to the middle : cyme lax : calyx rotate (no proper tube) ; bract- 

 lets narrow, half the length of the lanceolate lobes : petals cuneate- 

 oblong. I4 in. long, white : achenes gray, oblong-reniform, minutely 

 reticulate. — Near lone, //. Edwards, Mrs. Cur ran, Dr. Parry. 



21. P. laxiflora, Drew, Bull. Torr. Club, xvi. 151 (1889|. Stems 

 slender, ascending, 1 ft. high : herbage sparingly long-villous : leaflets 

 approximate in 10 — 12 pairs, divided into 2 or 3 segments, these linear 

 and entire or deeply cleft into 2 or more linear lobes : cyme lax : calyx 

 campanulate ; bractlets much narrower and shorter than the ovate- 

 lanceolate acute segments : petals spatulate-oblong, entire, exceeding 

 the calyx, white : filaments all petaloid-dilated : achenes only 2 or 3, 

 light-brown, smooth and shining. — In pine woods of the Hy-Am-Pum 

 Valley, Humboldt Co., Chesniit & Dreiv. 



22. P. Bolanderi, Greene, Pittonia, i. 103 (1887) ; Gray, Proc. Am, 

 Acad. \'iii. 338 (1868), under Horkelia. Size and habit of the last, but 

 cyme condensed and herbage densely hoary-pubescent, leaflets I4 — }^ in. 

 long, cuneate-obovate, with 3 — 5 oblong rounded lobes : petals oblong- 

 spatulate, white, equalling the calyx-lobes : achenes dark, ovate-reniform, 

 minutely granular.— In Lake and Colusa counties, Bolander, Mrs. Cnrran. 



23. P. teimiloba, Greene, 1. c. 105 (1887) ; Gray, Proc. Am. Acad. vi. 

 529 1 1865), under Horkelia : II. congesia, var. lenuiloha, Torr. Pac. E. Rep. 

 iv. 84 f 18.57). Stems 1 ft. high ; herbage canescently villous : leaflets I4 — H 

 in. long, cuneate-obovate, deeply parted into 4—8 linear lobes, or the 

 uppermost narrower, few-lobed or linear and entire : cymes compact : 

 calyx 2 lines long ; lobes linear, surpassed by the oblong-spatulate white 

 petals. — Sonoma Co., Bigeloin, and southward to San Luis Obispo, Mrs. 

 Curran. A somewhat rare or local species. 



24. P. Dou^lasii, Greene, 1. c. Ilurkelia fusca, Lindl. Bot. Reg. 1. 1997 

 (1837 j. Erect, ig — l/'a ft. high : herbage purplish or dark green, glandu- 

 lar-vUlous : leaflets ovate-cuneiform or cuneate-oblong, ^2 — 1 in- long, 

 deeply cleft : calyx I4 in. long, more than equalled by the cuneate-oblong 

 emarginate white petals. Var. teuella I Wats.) is distinguished as slender 

 and small, with more deeply cleft leaflets, smaller fl., etc. In the Sierra 

 from Yosemite northward ; the variety in Sierra Co. 



