64 RypBERG: Rocky MOUNTAIN FLORA 
clavate, about 1.5 cm. long, perfectly glabrous; seeds obovoid, 
1.5 mm. long. 
This species is related to E. paniculatum but differs in the 
small white flowers and the perfectly glabrous pod. 
Ura: Ogden, July 31, 1887, Tracy & Evans 547 (type, in herb. 
N. Y. Bot. Gard.); Salt Lake City, May 1869, Watson 390. 
OrEGON: Washington County, July 4, 1894, F. E. Lloyd. 
WASHINGTON: Spokane, July 11, 1902, Kraeger 152. 
Ipano: Little Potlatch River, Latah County, June 17, 1892, 
Sandberg, MacDougal & Heller 477. 
Montana: Moraine near Polson, August 18, 1901, Umbach. 
British CoLumBiA: Howser Lake, Selkirk Mts., June 17, 1905, 
Charles H. Shaw 714. 
NevabAa: Huntington Valley, August 1868, Watson 390. 
Epilobium subulatum (Haussk.) Rydb. 
Epilobium paniculatum subulata Haussk. Monog. Epil. 247. 1884. 
Epilobium laevicaule Rydb. sp. nov. 
Annual; stem glabrous, 6-10 dm. high, glabrous and shining; 
the bark of the lower portion flaky; leaves linear or linear-lanceo- 
late, 3-6 cm. long; the upper mostly involute, usually entire; tube 
of the hypanthium about 4 mm. long, rather abruptly widening 
into the calyx; calyx-lobes 3-4 mm. long; petals rose-colored, 6-7 
mm. long; pods clavate, about 3 cm. long, glabrous or almost s0; 
seeds obovoid, dark; coma dingy. 
Montana: Manhattan, 1895, Rydberg 2728 (type, in herb. N. 
Y. Bot. Gard.); Shear 3114; Big Fork, Aug. 3, 1909, Butler 7016. 
WASHINGTON: Pullman, Aug. 5, 1893, Piper 1631; Spokane, 
Sept. 1902, Kraeger 536 and 573. 
IpaHOo: Palouse County, 1892, G. B. Aiton 69; Seven Devils 
Mountains, Aug. 5, 1899, M. E. Jones 6317. 
Epilobium Sandbergii Rydb. sp. nov. 
Perennial by means of turions; stem obtusely angled, 6-10 
dm. high, finely puberulent throughout; leaves sessile, ovate, 
acute, dentate, 3-7 cm. long, pubescent on 
beneath, except the veins; inflorescence 
linear-lanceolate, about 5 mm. long; 
pod 4-6 cm. long, glandular-pilose; seeds 1.5 mm. long, almost 
peakless; coma tawny. 
