190 SAXIFRAGES. 



species, some states of which would pass for S. Peiuisylranica but for 

 their broad white petals. Other forms are very different. June — Sept. 



2. BOYKINIA, Nuitall. Perennial herbs with erect leafy stems, 

 and corymbose or paniculate cymes of white flowers ; leaves round- 

 reniform, palmately lobed or tootlied, the teeth with callous-glandular 

 tips ; the petioles stipularly dilated at. base. Calyx 5-lobed ; lobes 

 valvate, but early- open in the bud ; the tube more or less adherent to 

 the ovary. Petals 5, entire, imbricate or convolute in bud. Stamens .5, 

 short, alternate with the petals. Capsule 2-celled, dehiscent down the 

 beaks. Seeds minutely granulate or papillose. 



* Leaces ex stipulate; flowers sectmd, the corolla, slightly irregular, 

 the petals narrow. — Genus Thekofon, Raf. 



1. B. elata, Greene. Nutt. T. & G. Fl. i. 575 (1840), under Sa.rifraga. 

 B. occidental is, T. & G. 1. c. 577. Slender, 1—2 ft. high, glabrous or 

 glandular-pubescent, the bases of the petioles bearing brown bristly 

 hairs : leaves thin-membranaceous, 5 — 7-lobed, 1 — 3 in. broad : calyx- 

 lobes lanceolate-triangular ; tube oval and urceolate in fruit : petals 

 cuneate-oblong, obtuse, persistent and in age recurved : seeds elongated- 

 oblong, acute at one end, dark brown, rather • densely tuberculate. — 

 Shady banks and rocky margins of streams in the Coast Range from 

 Santa Barbara to British Columbia ; one of our finest saxifrageous 

 plants. The corolla has just the irregularity seen in most species of 

 Pelargonium. May—Aug. 



2. B. rotnudifolia, Parry, Proc. Am. Acad. xiii. 371 (1878). Near the 

 preceding but larger, 2 — 3 ft. high ; leaves 2 — 4 in. broad, crenately 

 incised or toothed ; stem and petioles villous as well as glandular : 

 flowers short-pedicelled on the few and elongated branches of the 

 inflorescence : petals small, little exceeding the calyx-lobes : calyx-tube 

 in fruit broadly urceolate. — In the San Bernardino Mountains, but to be 

 expected in Kern Co. 



* * Stipules manifest; flowers corymhose-cymose at summit of stem; 

 corolla regular, the petals broad. — Genus Hemieva, Raf. 



3. B. major, Gray, Bot. Calif, i. 196 (1876) : B. occidentalis, var. 

 elata, Gray, Proc. Am. Acad. viii. 383 (1868). Coarse and stout, 2 — 3 ft. 

 high, somewhat glandular-scabrous : leaves 4 — 8 lines broad, almost 

 pedately 5— 9-cleft and coarsely toothed ; petioles abruptly dilated at 

 base, the cauline short, with broad foliaceous stipules : calyx-lobes 

 triangular : petals white, obovate. — In the Sierra Nevada, from Mariposa 



' Co. northward. Aug., Sept. 



4. B. ranunculifolia, Greene. Hook. Fl. i. 246. t. 83 (1833), under 

 Saxifraga. Rather slender, 1 ft. high, glandular-pubescent above, nearly 

 glabrous below : lower leaves % — 1 in. broad, 3-parted, the segments 



