64 Rydberg : Rocky Mountain flora 



clavate, aljout 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. 



Utah: Ogden, July 31, 1887, Tracy cf Evans s 47 (type, in herb. 

 N. Y. Bot. Gard.); Salt Lake City, May 1869, Watson 396. 



Oregon: Washington County, July 4, 1894, F. E. Lloyd. 



Washington: Spokane, July 11, 1902, Kraeger 152. 



Idaho: Little Potlatch River, Latah County, June 17, 1892, 

 Sandberg, MacDongal cf Heller 477. 



Montana: Moraine near Poison, August 18, 1901, Umbach. 



British Columbia: Howser Lake, Selkirk Mts., June 17, 1905, 

 Charles H. Shaw 714. 



Nevada: Huntington Valley, August 1868, Watson 3q6. 



Epilobium subulatum (Haussk.) Rydb. 

 Epilobiiim 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 so; 

 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. 



Idaho: Palouse County, 1892, G. B. Alton 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 both sides, or glabrate 

 beneath, except the veins; inflorescence crisp-hairy; calyx-lobes 

 linear-lanceolate, about 5 mm. long; petals rose, 7-8 mm. long; 

 pod 4-6 cm. long, glandular-pilose; seeds 1.5 mm. long, almost 

 beakless; coma tawny. 



