196 SAXIFRAGACE^E. BoyMnia, 



1. B. occidentalis, Torr. & Gray. Smoothish, or with some rusty hairs, above 

 somewhat glandular : stem slender, a foot or two high : leaves thin-membrariaceous, 

 3 7-lobed : petioles with slightly dilated base fringed with some ramentaceous 

 bristles: calyx-lobes lanceolate-triangular, very acute. Fl. i. 577. Saxifraya 

 ranunculi/alia, Hook. Fl. i. 246, t. 83, probably, but surely no bulblets in the axils 

 of the radical petioles. S. elata, Nutt. in Torr. & Gray, Fl. i. 575, in part or 

 wholly. 



Woods of the Coast Ranges, from Santa Barbara to Mendocino counties and north to Wash- 

 ington Territory. Leaves 1 to 3 inches in diameter. Petals 2 or 3 lines long. 



2. B. major, Gray. Stouter and larger, 2 or 3 feet high : leaves 4 to 8 inches 

 in diameter, 5 9-clet't : petioles abruptly appendaged at base, the lower with scari- 

 ous, the upper with foliaceous and rounded naked stipules : calyx-lobes triangular. 

 B. occidentalis, var. elata, Gray, Proc. Am. Acad. viii. 383. 



Wooded region of the Sierra Nevada from Mariposa Co. northward (Bridges, Brewer, Bolander), 

 and Oregon (E. Hall). As this extends to Oregon it may possibly be Nuttall's Saxi/raga elata or 

 have been confounded with it ; but the "tufts of long chaffy hairs" at the base of the petiole 

 must rather refer to the preceding. The stipules in this are conspicuous, not bristly-appendaged, 

 the upper foliaceous, partly clasping or appressed to the stem, 4 or 5 lines long. 



B. ACONITIFOLIA, Nutt., of the Alleghany Mountains, with more laciniate leaves, has some 

 ramentaceous bristles either in the axils or fringing the slightly dilated base of the petiole. 



B. RICHARDSONII, Gray, the Arctic species, has contracted thyrsoid inflorescence and no ramen- 

 taceous bristles on the dilated base or in the axil of the leaf-stalk. 



3. BOLANDRA, Gray. 



Calyx broadly campanulate, 5-lobed ; the lobes triangular-lanceolate and acumi- 

 nate, valvate in the bud, recurved; the tube free from the ovary. Petals 5, inserted 

 on the throat of the calyx, small, very slender-subulate, recurved, persistent. Stamens 

 5, alternate with the petals, short : anthers 2-celled, cordate - 2-lobed. Ovary in- 

 cluded in but wholly free from the dilated calyx, ovate with a broad 2-celled base, 

 deeply 2-cleft above, into two tapering horns, each tipped by a truncate nearly 

 sessile stigma. Capsule membranaceous, included in the calyx, early opening down 

 the inside of the horns or beaks. Seeds very numerous and minute, with a thin 

 rather loose coat. A single species, with the foliage and habit of Boykinia or some 

 Saxifrages, the calyx of Tellima, petals rather of Tolmiea, and perhaps the early 

 dehiscent fruit of Tiarella, but the beaks equal. Proc. Am. Acad. vii. 341. 



1. B. Californica, Gray, 1. c. A span or two high, weak and ascending appar- 

 ently from a filiform rootstock, granulate - bulblet-bearing at the base of the stem, 

 glabrous or nearly so : leaves alternate, membranaceous ; the lower round-reniform, 

 about 5-lobed, on long and filiform petioles (the base of which is sometimes dilated 

 and stipule-like) ; the upper sessile or clasping, merely incised or few-toothed, 

 gradually reduced upward to small ovate or lanceolate bracts, borne on or subtend- 

 ing the slender one-flowered somewhat paniculate peduncles : petals dull purplish. 



On wet rocks in and near the Yosemite ; Mariposa trail (Bolander) ; Tenaya Falls, A. Gray. 

 Larger leaves an inch or move in diameter, and the ultimate bracts only a line or two in length. 

 Calyx 3 lines high. Attenuated petals 2 lines long. A humble plant, but a very distinct genus, 

 which commemorates the signal services rendered by the discoverer, Dr. H. N. Bolander, to Cali- 

 fornian botany. Thus far it seems to have been collected only by Dr. Bolander and by the 

 founder of the genus. 



4. TOLMIEA, Torr. & Gray. 



Calyx funnelform, free from the ovary, thin and membranaceous, gibbous at base ; 

 the 5 short lobes somewhat unequal and imbricated in the bud ; the tube in age 



