[Vor. 11 
154 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
that in some way the two had become mixed or that seed of 
M. guttatus had fallen on the soil of the pots in which M. T'lingi 
was growing. This species varies considerably in the size of the 
flowers and leaves. Generally, it may be distinguished by its 
low, rather closely branching stems, its elliptical or ovate, acute 
leaves and by its long-pedicelled, chiefly terminal flowers. Тһе 
rootstocks usually are yellowish and moniliform, but the same 
thing is found in apparently typical specimens of M. guttatus so 
that this cannot be used as a distinguishing feature as suggested 
by Greene. 
13a. Var. caespitosus (Greene) Grant, comb. nov. 
M. Scouleri var. caespitosus Greene, Pittonia 2: 22. 1889. 
M. caespitosus Greene in Jour. Bot. 33:8. 1895. 
M. luteus var. alpinus Gray in Proc. Acad. Phila. 71. 1868, 
not Lindl; Proc. Am. Acad. 11: 98. 1876; Bot. Calif. 1: 567. 
1876, in part; Syn. Fl. №. Am. 2!: 277. 1878, in part, ed: 2, and 
Suppl. 448. 1886, in part. 
M. alpinus (Gray) Piper in Contr. U. S. Nat. Herb. 11: 510. 
1906; Piper & Beattie, Fl. Northwest Coast, 325. 1915. 
Stems 3-10 em. long, reddish, stolons abundant, forming 8 
more or less dense tuft, rootstocks few; leaves ovate or elliptical, 
2-10 mm. long, dark grass-green, more or less tinged with red, 
glabrous or puberulent, entire or irregularly denticulate; flowers 
terminal and mostly solitary. 
Distribution: high mountains from British Columbia to Idaho 
and Washington, southward to central California. 
Specimens examined: 
British Columbia: Asulkan Valley, Glacier, 4100-6000 ft. alt., 
19 July, 1906, S. Brown 605 (М); Upper Spillimacheen, 6400 
ft. alt.,27 July, 1904, Heacock 207 (M and В. Mt.); by a rivulet, 
alpine meadow in the Big Bend district, 6000 ft. alt., 4 Aug» 
1905, Shaw 1094 (M); Mt. Cheam, 15 Aug., 1901, Fle 
(М); west of Skagit River, 4 Aug., 1905, Macoun 76795 (Cor 
nell); Chilliwack Valley, 1 July, 1906, Spreadborough (Cornell 
and M); Skagit River, 11 July, 1905, Macoun 76796 (Pomona). 
Idaho: wet mossy spring, Smoky Mts., Blaine Co., 8000 ft. alt., 
13 Aug., 1916, Macbride & Payson 3752 (M. and R. Mt.); wet 
