304 MEMOIRS OF THE NEW YORK BOTAXICAL GARDEN. 



Androsace filiformis Retz. Obs. 2: 10 [Syn. Fl. 2^: 60; Man. R. 



M. 234; Bot. Cal. i: 468]. 



In wet places, at an altitude of 2000-2500 m. 



Montana: Beaver Head Co., 1888, /^. Txceedy, ij8; Melrose, 

 1895, Rydhe7-g, 2j4.y ; Spanish Basin, 1896, Flodinan, yij and 714; 

 Spanish Basin, June 28 to July i, 1897, Rydberg & Bessey, 4676 

 2ir\d.46jy: Park Co., 1889, Tzucedy ; Yogo, 1888, R. S. Williams : 

 Jefferson City, 1883, Scribncr, i^j ; Bozeman Pass, 1883, Canhy, 

 22J ; Big Hole Valley, 1880, Watson. 



Yellowstone Park: Mammoth Hot Springs, 1884, Tweedy ^ §1 ; 

 Antelope Creek, 1885, 433: Yellowstone Lake, Aug. 12, 1897, Rxd- 

 berg & Bcsscy, 4678: 1873, Parry, 200. 



* Dodecatheon viviparum Greene, Erythea, 3: 38. 



Stout, from a fleshy rootstock : leaves large, more or less dentate 

 with distant small callous teeth. In wet places. 



Montana: Granite, 1892, R. D. Kclscy ; Rock Creek, Beaver 

 Head Co., 1888, Tzcccdy, 23: Bozeman, 1882, Tweedy; Deer 

 Lodge Co., Emma Ware (large-flowered and with large veiny leaves). 



* Dodecatheon conjugens Greene, Erythea, 3 : 40. 



Resembling D. paiicifionnn in habit, but the flowers larger, the 

 anthers distinct and with a rugulose connective ending in a linear 

 tip. 



iNIoNTANA : Helena, Kchcx (according to Greene, type): Helena, 

 1888 and 1892, KchcY : Gallatin Co., Jliss Cary Shipman (one- 

 flowered) : Bozeman Pass, 1883, Scribiier, 148, 



* Dodecatheon acuminatum. 



Scape 10-15 cm. high, from a cluster of flbrous somewhat fleshy 

 roots : leaves oblong-elliptic, 5-6 cm. long, tapering into a short 

 petiole, generally obtuse, entire-margined, rather fleshy, puberulent ; 

 umbel 3-5-flowered ; bracts lanceolate, membranous and scarious ; 

 calyx tapering gradualh' into the pedicel ; sepals lanceolate ; corolla 

 whitish, tinged with purple or rose • corolla-lobes lanceolate, 12-15 

 mm. long, acuminate ; stamens almost free : united filaments scarcely 

 I mm. long ; anthers 6-7 mm. long ; connective purple, broad and 

 rugulose at the base. 



This has the leaves of T). cvlindrocarfum described below and the 

 cal3'x of C. Cusickii, but differs from both species in the form of the 

 stamens, which suggest D. conjtigens. 



Montana: Missouri River above mouth of Sand Coulee, 1885, 

 F. W. Anderson (type in the Herbarium of Columbia L'niv'ersity). 



