212 ROSACEAE 



II. R. pinetorum lid. l*i\i: Kosi;. Stems slender, 2 to 3'/2 feot lii^di; priekles 

 straight, slender to somewhat stout; stipules short, more or less dilated, usually 

 grlandular on the baeks and frlanduhir-eiliolate on the margins; petioles and rachis 

 priekly and glandular-hisiiid; leallets elliptical to orbicular, more or less pubescent 

 beneath and somewhat glandular, % to ly^ inelies long, the margins usually doubly 

 serrate with gland-tipjied teeth; llowers solitary or in corymbose clusters; petals 

 obcordate, 5 to 7 lines long, the pedicels glabrous or glandular-hispid; calyx-tube 

 glabrous, the lobes with foliaceous tips, glandular externally, tomentose within, 

 the edges rarely glandular-ciliolate, erect and persistent in fruit; hips globose, 

 glabrous, 4 to 8 lines long. 



Pine woods, 2800 to 6500 feet: Sierra Nevada from Shasta Co. to Fresno Co.; 

 ]\Ionterey coast. IMay. 



Locs. — Sierra Nevada: Mariposa Big Trees, Jepson 5657 (R. bidenticulata Rydb.) ; North 

 Fork, Madera Co., Jepson 12,869 (R, bidenticulata Rj'db.). Monterey Co.: Pacific Grove, Parish 

 11,503. 



Refs. — Rosa pinetorum Hel. Mulil. 1:53 (1904), type loc. Pacific Grove, Monterey Co., 

 Heller 6817. B. pymnocarpa var. -pinetorum Jepson, Man. 500 (1925). R. bolanderi Greene, 

 Lflts. 2:261 (1912), type loc. Oakland, Bolander (sepals ovate, short-acuminate). E. calvaria 

 Greene, I.e. 257, type loc. Calaveras Big Trees, Greene (leaflets pale beneath, petals about 5 

 lines long). F. dudleyi Rydb. Bull. Torr. Club 44:73 (1917), type loc. Boole's, Converse basin, 

 Fresno Co., Dudley 3388 (prickles stouter, leaves thicker, glandular, more pubescent beneath 

 than in R. calvaria Greene). B. Mdenticulata Rydb. N. Am. Fl. 22:518 (1918), type loc. Castella, 

 Shasta Co., EasUvood 1389 (leaves nearly glabrous beneath, prickles small, flowers solitary). B. 

 corymbiflora Rydb. I.e. 519, tj'pe loc, between Pitt and Baird, Shasta Co., Eastwood 1404 (flowers 

 corymbose). 



7. R. gymnocarpa Nutt. Wood Rose. Slender, 1 to 3 feet high; pedicels, 

 rachises, midrib of leaflets usually more or less glandular-hispidulose or -hispid, 

 the leaflets otherwise glabrous; branchlets and rachises of the leaves densely armed 

 with long slender straight prickles, or sometimes unarmed; leaves 2 to 3 inches 

 long; leaflets i^ to % (or 1-V4) inches long, elliptic or roundish, obtuse or acute, 

 doubly serrate, the minute teeth gland-tipped; flowers generally solitary or in 

 clusters of 2 or 3; petals 5 to 7 lines long; pedicels clothed with gland-tipped hairs, 

 rarely glabrous, drooping or curving in fruit; calyx-lobes at length deciduous; 

 hips ovate, pear-shaped or globose, glabrous, red, 4 to 8 lines long. 



Shady woods or bushy north slopes, often near streams, 300 to 5500 feet : San 

 Diego Co.; Coast Ranges from Monterey Co. to Siskiyou Co.; Sierra Nevada from 

 Mariposa Co. to Modoc Co. North to British Columbia. May-June. 



Locs. — San Diego Co.: Palomar Mt., Jepson 1501 (a variant, some of the hips with gland- 

 tipped spines). Coast Ranges: Pacific Grove, Tidestrom; Saratoga, Santa Clara Co., Davy 315; 

 Moraga Valley, Contra Costa Co., Jepson 13,887 ; Berkeley, Jepson 9815 ; Lagunitas, Marin Co., 

 Parish 19,061 ; Sonoma Canon, Kenwood, Jepson 10,013 ; Howell Mt., Napa Co., Jepson 13,892 ; 

 Elk Mt., n. Lake Co., Tracy 2270; betw. Ft. Bragg and Sherwood, Jepson 13,889; Bull Creek, 

 Humboldt Co., Jepson 16,462; Hupa, Manning; Shasta Sprs., Siskiyou Co., Jepson 13,890; 

 Shackelford Canon, w. Siskiyou Co., Jepson 2811 ; Humbug Mt., w. Siskiyou Co., Butler 1816. 

 Sierra Nevada: Mariposa Big Trees, Bolander; Italian Bar, South Fork Stanislaus River, Jepson 

 6386; Carpenters Gulch, Amador Co., Hansen 806; Blue Canon, Placer Co., H. A. Walker 1232; 

 Rich Pt., Middle Fork Feather River, Jepson 10,605 ; Brush Creek, Butte Co., Eate Conger; Ft. 

 Bidwell, ne. Modoc Co., Manning 49. 



Var. pubescens Wats. Leaves minutely puberulent beneath; pedicels glabrous. — Sierra 

 Nevada: Fresno Co. (Pine Ridge) ; Tamarack road, near Burney Valley, Shasta Co., M. S. Baker; 

 Forestdale, Modoc Co., M. S. Baker. 



Refs.— Rosa gymnocarpa Nutt.; T. & G. Fl. 1:461 (1840), type from Ore., Nuttall; Jepson, 

 Fl. W. Mid. Cal. 278 (1901), ed. 2, 206 (1911), Man. 499 (1925). B. spitharnea var. suhinermis 

 Engelin. Bot. Gaz. 6:236 (1881), type loc. "Big Trees of Fresno Co.," Engelmann. B. glauco- 

 dermis Greene, Lflts. 2 :255 (1912), type loc. Shasta Sprs., Siskiyou Co., Jepson 13,890 (branchleta 

 green, glaucous, leaflets petiolulate). B. prionota Greene, I.e. 256, type loc. foothills s. of Mt. 

 Sanhedrin, Lake Co., Heller 5858 (leaflets more numerous, 7 to 9, smaller, teeth narroAver, term- 

 inal leaflet cuneate at base). B. piscatoria Greene I.e., type loc. Pescadero, San Mateo Co., Elmer 

 (leaves small, stems very hispid). Var. pubescens Wats. Bot. Cal. 1:187 (1876), type loc. 

 Wawona (Clark's), Mariposa Co., Gray. B. hridgesii Crepin, Bull. Soc. Bot. Belg. 15:54 (1876), 



