SAXIFRAGACE.E. (SAX.'FRAGE FAMILY.) 93 



dus, the upper with foliaceous and rounded stipules. — In the Sierras from 

 California to Oregon and extending into the Bitter-Root Mountains. 



3. TELLIMA, R.Br. 



Calyx campanulate or turbinate, 5-lobed ; the base of the tube coherent 

 with the base or lower half of the ovary. — Perennials : with palmately- 

 divided leaves, few on the simple stems ; their petioles with stipule-like dila- 

 tations at base: flowers in a simple terminal raceme; petals white or pink. 

 In ours the slender or filiform rootstock and sometimes even the few-flowered 

 raceme bear clusters of small grain-like bulblets. 



1. T. parviflora, Hook. Roughish-hirsute or scabrous-pubescent, a span to 

 afoot high : divisions of the leaves narrowly cuneate and once or twice 3-cleft: 

 calyx obconlcal or at length almost clavate: petals deeply 3-c/eft into linear or 

 oblong divisions: ovary and capsule fully half inferior. — Colorado, Utah, and 

 northward through the Yellowstone region to British America. 



2. T. tenella, Watson. Small and slender, 2 to 9 inches high, roughish 

 with a minute glandular pubescence: leaves smaller than the preceding (^ inch 

 in diameter) : calyx campanulate : petals 3 to 5-parted or even irregularly 

 1 -parted into mostly linear divisions : ovary and capsule free except the base. — 

 Bot. King's Exp. 95. Colorado and the Teton Mountains, thence west to the 

 Sierras. 



4. TIARELLA, L. 



Calyx 5-parted ; the base almost free from the ovary, the lobes more or less 

 colored. — Perennial, low or slender : with palmately lobed or divided alter- 

 nate leaves, and a terminal raceme or panicle of small white flowers. 



1. T. unifoliata, Hook. Somewhat pubescent or hairy : flowering stems 

 a span to a foot or more long : leaves thin, cordate, either rounded or some- 

 what triangular, 3 to 5-lobed and the lobes crenate-toothed ; the radical ones 

 slender-petioled ; the cauline mostly one, smaller, and short-petioled, or some- 

 times 2 or 3 similar to the radical. — From California to British Columbia 

 and extending into N. "W. Montana. 



5. MI TELL A, Tourn. Mitre-wort. 



Calyx 5-cleft, short, coherent with the base of the ovary. — Low and slender 

 perennials : with round heart-shaped alternate leaves on the rootstock or run- 

 ners ; those on the scape opposite, if any : flowers small, in a simple slender 

 raceme or spike. 



1. M. pentandra, Hook. Leaves all radical, cordate, slightly lobed, 

 crenately seirate : calyx adherent nearly to the summit of the ovary : petals 

 pectinate-pinnatijid : stamens opposite the petals : stigmas 2-lobed. — From 

 Colorado to the Yellowstone and the Bitter Root Mountains. 



2. M. trifida, Graham. Leaves as in the last, but dentate: calyx adhe- 

 rent to the middle of the ovary : petals 3 to 5-parted : stamens opposite the calyx- 

 lobes : stigmas entire. — By mistake in Fl. Colorado this species was described 

 under the name M. pentandra. From Colorado to British America, and also 

 in California. 



