CROSSOSOMATACEAE 159 



broad, glabrous or weakly pubescent and often glandular above, more or less silky- 

 pubescent beneath ; caljrx greenish- white, villous, 4 to 4i/^ lines long, its tube very 

 short (1 to IV2 lines), the lobes 2 to 2I/2 times as long; stamens little exceeding the 

 petals; berry usually glandular, armed with stout-based yellowish spines of very 

 unequal length, and also provided with many slender short gland-tipped bristles 

 set between. 



Higher mountains, 3000 to 6000 feet: southern Sierra Nevada; northern Cali- 

 fornia. Southern Oregon. June. 



Locs. — Tulare Co.; Shackleford Creek, w. Siskiyou Co., Butler 259. Ashland Butte, Ore., 

 Howell. 



Eefs. — EiBES BiNOMiNATUM Hel. Cat. ed. 2, 5 (1900); Jepson, Man. 474 (1925). Grossu- 

 laria binominata Gov. & Britt. N. Am. Fl. 22: 218 (1908). Both these binominals rest upon 

 M. amhiguum Wats. Proc. Am. Acad. 18:193 (1883), type loe. Scott Mts., Greene; not E. ambi- 

 guum Maxim. (1874). E. montanum Howell, Fl. Nw. Am. 210 (1898), type loc. Siskiyou Mts., 

 Howell, not E. montanum Phil. (1860). Grossularia tularensis Gov. N. Am. Fl. 22: 218 (1908), 

 type loc. Giant Forest, Sequoia Park, K. Brandegee. 



26. R. speciosum Pursh. Garnet Gooseberry. Tall shrub, evergreen or 

 nearly so, 4 to 10 feet high ; branches prickly or almost smooth ; spines at nodes 3, 

 very stout (5 to 8 lines long) ; leaf -blades small (6 to 8 lines long, rarely to 1 or I14 

 inches long), shining, coriaceous, roundish to obovoid, roundish or cuneate at 

 base, slightly 3-lobed or -toothed at apex, the lobes often few-toothed or crenate; 

 peduncles 1 or 2-flowered ; calyx crimson, its lobes erect, 4 to 5 lines long, the tube 

 above the ovary very short (1 line long), forming a swollen ring; petals involute, 

 narrow, truncate, almost as long as the sepals; stamens and style exserted 8 to 11 

 lines; anthers oval; ovary densely bristly, the bristles with discoid glands at tip; 

 berry dry, very spiny. 



Caiions and valley flats, 5 to 1000 feet : near the coast from Santa Clara Co. to 

 Monterey and south to San Diego. Apr.-]\Iay. 



Locs. — Coyote Creek, Chandler 912; Carmel, NewJon 131; San Luis Mt., Summers; Santa 

 Barbara, T. Brandegee ; Garpinteria, Breicer 251, 263; Santa Monica, Barber; Oceanside, Parish 

 4456. 



Eefs. — EiBES SPECIOSUM Pursh, Fl. 731 (1814), type from "northwest coast", Menzies, 

 really California (probably Monterey) ; Lindl. Bot. Eeg. t. 1557 (1832) ; Jepson, Fl. W. Mid. 

 Cal. ed. 2, 203 (1911), Man. 475 (1925). Grossularia speciosa Gov. & Britt. N. Am. Fl. 22:212 

 (1908). 



CROSSOSOMATACEAE. Crossosoma Family 



Glabrous shrubs with alternate entire leaves. Flowers regular, solitary, ter- 

 minal, borne on short naked peduncles arising from winter buds. Calyx 5-lobed, 

 persistent. Petals 5, white. Stamens 15 to 50, inserted in 3 or 4 ranks on a thin 

 disk lining the open calyx-tube ; filaments somewhat dilated. Stigma capitate. 

 Follicles 2 to 9, contracted at base into a short or obscure stipe. Seeds several, fur- 

 nished with a fimbriate aril. Endosperm slightly fleshy; embryo curved. 



Bibliog. — Engler, A., Crossosomataceae (Engler & Prantl, Nat. Pflzf. nachtr. 1:185-186, — 

 1897). Vaslit, F. H., Crossosoma (Zoe 1:27,-1896). 



1. CROSSOSOMA Nutt. 



The only genus. — Species 2, southwestern North America. (Greek krossoi, 

 fringe, and soma, body, in reference to the aril. ) 



Leaves scattered ; petals roundish, scarcely clawed 1. C. calif ornicum. 



Leaves fascicled ; petals oval or obovate, distinctly clawed 2. C. bigelovii. 



1. C. californicum Nutt. Shrub 3 to 6 feet high, or somewhat arboreous and 

 up to 15 feet high; leaves scattered, oblong (or sometimes obovate), tapering 

 slightly to the somewhat obtuse mucronate apex, tapering more strongly to the 

 shortly petioled base, 1^/2 to 3I/2 inches long ; flowers numerous, 10 to 14 lines broad ; 



