SAXIFRAGES. 201 



15. R. ambi^uum, Wats. Proc. Am. Acad, xviii. 193 (1883). Glandu- 

 lar-pubescent and villous ; subaxillary spines short : leaves 1-2 in. 

 broad, 5-lobed and incised : fl. mostly solitary, J3 in. long or less, greenish, 

 more or less villous : stamens equalling or barely exceeding the white 

 petals ; anthers very small, light-colored, glabrous, obtuse at both ends : 

 fr. large, densely spinose. — Ou the Scott Mountains and northward ; but 

 doubtless to be found within our limits. 



16. R. Marshallii, Greene, Pittonia, i. 31 (1887). Near the last, but 

 glabrous : fl. 1 in. long ; calyx-segments oblong- linear, spreading or 

 retlexed, equalling or exceeding the tube, dark-purple ; petals 2 — 3 lines 

 long, salmon-color, rather thin, manifestly involute ; filaments slender, 

 exserted ; anthers oblong, obtuse at both ends, glabrous ; ovary bristly. — 

 Summit of Trinity Mountains, near lingering snow-drifts, July, 1886 ; in 

 flower only. Possibly a glabrous and large-flowered state of the preceding. 



17. R. Victoris, Greene, Pittonia, i. 224 (1888). Shrub 5 ft. high : 

 branches commonly very prickly ; subaxillary spines triple, rather 

 slender : leaves (not very deeply 5-lobed) and growing branchlets pubes- 

 cent and viscid : pedicels short, deflexed, with 1 or 2 persistent bracts 

 and as many short-pedicellate greenish flowers }4, ^- loQg : calyx-tube 

 short-campanulate, much exceeded by the green (occasionally livid- 

 purplish) lobes ; petals 1)^ lines long, white, thinnish, involute, ac^^te 

 and more or less toothed at apex ; filaments stoutish, little surpassing 

 the petals ; anthers large, subsagittate, mucronate ; ovary glandular- 

 hispid. — By streams in the Coast Range, but not common ; at Lagunitas, 

 in Marin Co., Chesnut & Drew; Rutherford Canon, and near Calistoga, 

 Parry. Possibly identical with R. occidentale, H. & A., a shrub which 

 can not be identified by the very inadequate diagnosis given in the 

 Botany of Beechey's Voyage. 



18. R. Californicum, H. & A. Bot. Beech. 346 (1840). Shrub 2-4 ft. 

 high, with very rigid and flexuous glabrous branches : subaxillary spines 

 ternate, short, stoutish : leaves small, 3 — 5-lobed and incised, sparsely 

 glandular-puberulent when young, not at all viscid or heavy-scented, in 



''matiirity glabrous : peduncles very short, 1 — 3-flowered ; the very short 

 pedicels each with a small round-ovate bract beneath : calyx-tube very 

 short, the reflexed lurid-purple ligulate segments thrice as long ; petals 

 white, thick, strongly involute, truncate and erose-toothed at summit ; 

 filaments stou.t, thrice the length of the petals, the anthers ovate-oblong, 

 mucronate, reddish ; style simple ; ovary glandular-hispid : berry large, 

 prickly. — One of a goodly number of very clear species which herbarium 

 writers have confused with R. Menziesii. This is very common, on open 

 slopes and along streams in the Oakland Hills ; remarkable for its very 

 early flowering, its short-jointed zigzag branches, small glabrous scentless 

 foliage, etc. One can hardly be positive that it is the plant of Hooker Ar 



