ROSE FAMILY 211 



Canon, Monticello, Utah (prickles curved). E. pyrifera Eydb. I.e. 445, type loc. shores of Lake 

 Pend d'Oreille, Ida., Sandberg, MacDougal 4" Seller 871 (fruits pyriform, leaves light green, 

 glandular). R. salictorum Eydb. Bull. Torr. Club 44:77 (1917), type loc. Gold Creek, Nev., 

 Nelson 4- Macbride 2113 (prickles few, leaves large, thin, broadly oval). B. gratissima Greene, 

 Fl. Fr. 73 (1891), type loc. mts. of Kem Co., probably Tehachapi, Greene. E. pisocarpa var. 

 gratissima Jepson, Man. 499 (1925). Var. mohavensis Jepson. B. mohavensis Parish, Bull. S. 

 Cal. Acad. 1:87 (1902) ; Jepson, Man. 499 (1925) ; the Parish name resting on B. calif ornica var, 

 glabrata Parish, Erythea 6:88 (1898), type loc. Cushenbury Sprs., n. side San Bernardino Mts., 

 Parish 2481; not E. glabrata Kit. (1863)'. 



4. R. pisocarpa Gray. Cluster Rose. Slender, 3 to 5 feet high; prickles few, 

 slender and straight, or none; leaves green and glabrous above, paler and often 

 pubenilent beneath, not glandular, leaflets finely serrate; stipules strongly and 

 often abruptly dilated upwards and so inversely sagittate; flowers in corymbs or 

 solitary; calyx-lobes prolonged into a slender terminal entire linear or lanceolate 

 appendage, often glandular-hispid; petals obcordate, 6 to 8 lines long; hips globose, 

 3 to 5 lines in diameter, contracted above into a very short neck. 



Rich hill slopes and valley or caiion flats, 50 to 3000 feet : Lake, Humboldt and 

 Trinity Cos. to Shasta, Siskiyou and Del Norte Cos. North to British Columbia. 

 June-Aug. 



Loes. — Elk Mt., n. Lake Co., Tracy 2305 ; Trinity Eiver near the South Fork, Humboldt Co., 

 Tracy 7079, 6550 (E. pringlei Eydb.) ; Eeddiug, Blanhinship (E. eastwoodii Eydb.) ; Mt. Eddy, 

 Siskiyou Co., Copeland 3875 (E. eopelandii Greene); Delta, Shasta Co., Jepson 6182; Yreka, 

 Butler 1352 (E. pringlei Eydb.) ; Yreka Creek, Siskiyou Co., Butler 1804 (E. chrysocarpa Eydb.) ; 

 Gilbert Creek, nw. Del Norte Co., Jepson 9385 (E. pringlei Eydb.). 



Var. rivalis Jepson. Glabrous; prickles few or none; leaflets thin, rather prominently 

 feather-veined, 1 to 1% inches long. — Mendocino Co.; Humboldt Co. (betw. Sommes Bar and 

 Jims ranch, Klamath Eiver, Chandler 1544). 



Eefs.— EoSA PISOCARPA Gray, Proc. Am. Acad. 8:382 (1872), type loc. Ore., Elihu Hall; 

 Jepson, Man. 499 (1925). E. nutkana var. microcarpa Crepin, Bull. Soe. Bot. Belg. 15 :45 (1876). 

 B. eopelandii Greene, Lflts. 2:264 (1912), type loc. Mt. Eddy, Siskiyou Co., Copeland 3875 

 (prickles stout, herbage glabrous and non-glandular except for tomentose sepals) . E. chrysocarpa 

 Eydb. BuU. Torr. Club 44:74 (1917), type loc. Allen Canon, Utah, Bydberg 4 Garrett 9302 (leaves 

 glabrous, stipules glandular-dentate or -ciliate, sepals tomentose within and marginally). B. 

 pringlei Eydb. I.e. 79, type loc. Siskiyou Co., Fringle (nearly unarmed, leaves puberulent, hip 

 elongate, constricted at the neck). B. eastwoodii Eydb. N. Am. Fl. 22:527 (1918), type loc. 

 Sisson, Siskiyou Co., Eastwood. Var. rivalis Jepson, Man. 499 (1925). B. rivalis Eastw. Bull. 

 Torr. Club 32:198 (1905), type loc. LaytonvUle, Mendocino Co., Eastwood. 



5. R. spithamea Wats. Ground Rose. Simple or sparingly branched, about 

 1 foot high; prickles few, slender, straight; leaves minutely pubescent and more or 

 less glandular, especially on the petioles; stipules narrow, acute or acuminate; 

 pedicels and calyx usually hispid with gland-tipped hairs; flowers solitary or few; 

 calyx-lobes with entire linear or lanceolate appendages; petals obcordate, 5 to 8 

 lines long; hips globose, 3 to 5 lines broad. 



Grassy slopes in open woods, 600 to 4000 feet : North Coast Ranges from Hum- 

 boldt Co. to Lake Co. ; Sierra Nevada from Mariposa Co. to Tulare Co. June-Aug. 



Locs.— North Coast Eanges: South Fork Mt., Trinity Co., Tracy 6497; Trinity Eiver valley, 

 near the South Fork, Tracy 7196; Grouse Creek, Humboldt Co., Chesnut 4 Drew; Elk Mt., n. 

 Lake Co., Jepson 13,896. Sierra Nevada: Mariposa Big Trees; Old Colony MUl, Marble Fork 

 Kaweah Eiver, Jepson 640. 



Var. sonomensis Jepson. Sonoma Eose. Stems densely armed with stout straight or 

 slightly recurved prickles; leaflets with the teeth minutely glandular-denticulate; flowers 

 several in a corymb; calyx-tube very densely glandular -hispid. — Dry slopes, 50 to 2000 feet: 

 outer Coast Eanges from San Luis Obispo Co. to Mendocino Co. 



Locs.— Pajaro Hills, Monterey Co., Chandler 438 ; Saratoga, Santa Clara Co., Davy 316 ; Mt. 

 Tamalpais, Jepson 13,895; Comptche, Mendocino Co., E. A. Walker (intermediate toward the 

 species). _. _ 



Eefs.— EoSA SPITHAMEA Wats. Bot. Cal. 2:444 (1880), tj-pe loc. Trinity Eiver, Battan; 

 Jepson, Man. 499 (1925). Var. sonomensis Jepson, Fl. W. Mid. Cal. 279 (1901), ed. 2, 206 

 (1911), Man. 499 (1925). B. sonomensis Greene, Fl. Fr. 72 (1891), type loc. Petrified Forest, 

 Sonoma Co., Greene. B. granulata Greene, Lflts. 2 :262 (1912), type loc. San Luis Obispo, Brewer. 



