SAXIFRAGE FAMILY 385 



1. T, majus (A. Gray) Wheelock. Stems 3-10 dm. high, more or less 

 glandular-villous with brown hairs; leaf-blades reniform in outhne, glabrous, 

 except the veins beneath, 5-15 cm. in diameter, 7-cleft about half way down, 

 again cleft and coarsely serrate; middle stem -leaves with large foliaceous stipules; 

 hypanthium campanulate, 2-3 mm, long, glandular-puberulent; sepals lanceo- 

 late, 3 mm. long; petals white, 5-7 mm. long. B. occidentalis data A. Gray. B. 

 major A. Gray. Woods; ]\Iont. — -Ida.— Wash.— s Calif. Mont. Je-S. 



15. TELESONIX Raf . 



Low glandular-pubescent perennials, with thick scaly rootstocks. Leaf- 

 blades reniform, deeply and doubly crenate. Flowers in a contracted, leafy, 

 somewhat secund panicle. Hypanthium turbinate-campanulate, adnate to the 

 lower half of the ovary. Sepals 5, ovate-lanceolate. Petals 5, red or purple, 

 with long claws. Stamens 10; filaments subulate. Ovary 3-celled; styles more 

 or less united. Fruit dehiscent between the beaks, which are not divergent. 

 Seeds numerous. 



Petals twice as long as the sepals; blades almost orbicular; beaks of the pistils united 

 almost to the top. ' 1. T. Jamesii, 



Petals equalling or slightly exceeding the sepals; blades obovate-spatulate; beaks of the 

 pistils united halfway up. 2. T, heucheriformis. 



1. T, Jamesii (Torr.) Raf, Stems usually less than 1 dm. high, glandular- 

 pubescent; leaf-blades round-reniform, deeply and doubly crenate, 2-3.5 cm. 

 wide, or the upper ones flabellate-cuneate, with winged petioles, or subsessile; 

 hypanthium 8 mm. long; sepals ovate-lanceolate, 4-5 mm. long; petals reddish 

 purple. Saxifraga Jamesii Torr, Boykinia Jamesii Engler. Among rocks: 

 Colo. Mont. — Alp, Jl. 



_ 2. T. heucheriformis Rydb. Closely resembling the preceding; stem 1-2 

 dm. high; hypanthium usually smaller, 6-7 mm. long, more hirsute; petals dark 

 violet. Boykinia heucheriformis A. Nels. Rocky mountain sides: Alta. — B.C. 

 —(Black Hills) S.D.— Wyo. Mont.—Subalp. Jl-S. 



16. SAXIFRAGA (Tourn.) L. Saxifrage. 



Perennial caulescent herbs, from a small rootstock. Leaves alternate, not 

 crowded, but sometimes tufted at the base of the plants; blades more or less 3- 

 lobed, or in diminutive plants nearly entire, mostly petioled. Flowers sohtary 

 or in terminal cymes. Hypanthium turbinate or campanulate, longer than tlie 

 calyx, at least at maturity. Sepals 5, erect, usually with a terminal gland. 

 Petals 5, white, somewhat narrowed at the base, but usually clawless. Stamens 

 10; filaments subulate. Ovary about half-inferior, the carpels united to above 

 the middle. Follicles well united, erect except the more or less spreading tips. 



Flowers normal, none of them represented by clusters of bulblets. 



Petals not abruptly narrowed into claws; leaf-blades thick, the lower ones mainly 



3-lobed. 1. S. rivularis. ^ 



Petals abruptly narrowed into claws; leaf-blades thin, the lower ones 5— 7-lobed. 

 ^ 2. iS. debilis, 



1* lowers below the terminal one replaced by clusters of bulblets. 



L-obes of the stem-leaves linear to triangular-lanceolate; petals cxmeate. 



3. 5. cernua. 

 Liobes of the stem-leaves broad and rounded, as broad as long or broader; petals tiddle- 

 shaped. 4. S. sitnulata. 



1. S, rivularis L. Stems 3-8.5 cm. tall, tufted, glabrous or finely glandular- 

 pubescent; leaf-blades reniform in outhne, 3.5-12 mm. broad, thick; those of the 

 stem-leaves sometimes entire; hypanthium 2-3.5 mm. long at maturity; sepals 

 ovate, 1.5-2.5 nun. long, obtuse; petals oblong, 3-5 unn, long. Wet places: 

 Greenl.-^N.H.— Wyo.— B.C.— Alaska; Eurasia. Alp.—Subalp. 



2, S. debilis Engelm. Stems 3-14.5 cm. tall, loosely tufted, glabrous or 

 nearly so; leaf-blades suborbicular or reniform in outhne, 6-17 mm. wide, thin, 

 mainly 5-lobed; hypanthium 3-4.5 mm. long at maturity; sepals ovate, 1.5-2 

 nim. long, obtuse; petals cuneate to oblong, 3-7 mm. long. Wet rocks: Mont. 

 VVyo.-^Colo.— Utah. Mout.~Alp. Je-Au. 



