GEOLOGICAL SURVEY OF THE TEEEITOEIES. 493 



Polygonum coapctatum, Dougl., var. mimis, Meisn. — ^Yellowstone Lake. 

 Folygonum Convolvulus, L. — Fort Ellis to the Yellowstone. 



ELiEAGNACE^. 



ShepJierdia Canadensis, Nutt. — Fort Ellis to the Yellowstone; Yellow- 

 stone Lake. 



Santalace^. 



Comandra pallida, D. C. — Utah Territory; Pleasant Valley. 



LOEANTHACEJE. 



ArceutJioMum Americanum, Nutt., in Herb. Durand. — Yellowstone 

 Lake. — A specimen was sent to Dr. Eugelmauu, who kindly furnished the 

 name and the following note : " You follow Hooker in naming it A. Oxy- 

 cedri, which, however, has never been found in America. Your plant 

 is the same as the male figured by Hooker (Fl. Bor. Am., 2, t. 99) and 

 no doubt from the same tree, Pinus contorta, and is a female. Hooker's 

 female is a distinct species. Mr. Meehan obtained the same plant in 

 Colorado from the same tree last summer. Nuttall also found only the 

 male, as well as Drummond and several other collectors." 



Oalliteichace^. 



Oallitriche verna, L. — Lower Falls of the Yellowstone. 



EUPHOEBIAGEiE. 



UuphorMa glyptosperma, Engelm. — Stinking Water Creek; Yellow- 

 stone Lake. 

 Euphorbia dictyosperma, F. and M. — Madison Valley. 

 UuphorMa montana, Engeim. — Crow agency. 



Ueticace^. 



Urtica gracilis, Ait. — Stinking Water Creek ; Medicine Lodge. 



CUPULIFEE^. 



Quercus alba, L., var. Gunnisoni, Torr. — Monntains near Ogden, Utah 

 Territory. 



Betulaceje. 



Betula occidentalis, Hook. — Yellowstone Eiver ; SpringCreek, IS'orthern 

 Idaho. 

 Betula glandulosa, Michx. — Pleasant Valley; Yellowstone Lake. 

 Alnus viridis, D. C. — ^Yellowstone Lake. 

 Alnus incana, Willd. — Madison Valley. 



Saltcace^. 



Salix longifolia, Miihl. — Utah Territory; Crow agency. — Tn some speci- 

 mens, the serratures of the leaves are very sparse or almost obsolete. 

 /Salix longifolia, Muhl., var. argyrophylla, Nutt. — Utah Territory. 

 Salix nigra, Marsh., var. amygdaloides, Anders. — Utah Territory. 

 Salix cordata, Muhl., var. — Weber Eiver Valley, Utah Territory. 



