GEOLOGICAL SURVEY OF THE TERRITORIES. 783 

 TYPHACE^. 



Typha latifoUa, L. — Snake Eiver Valley, July ; iu swamps near Fort 

 Hall, Idaho, in great abundance. 



Sparganium simplex^ Huds., var. androcladum, Engelm. — Weber River, 

 Utah, Jane. 



NAIADACE^. 



Zannichellia palusfns, L. — Yellowstone Lake, 1871. 

 Potamogeton perfoliatns, L., var. lanceolatiis, Kobbins. — Henry's Fork 

 of Snake River, August 6. 

 Potamogeton pectinatus, L. — Upper Geyser Basin, August. 



ALISMACE^. 



TriglocUn palustre, L. — Hot Springs, ten miles from Ogden, Utah, 

 June 24. 



Tri^glocMn fnaritimum, L. — Swamps near Ogden, Utah, June 18; Upper 

 Caiion of the Madison, August 10; Yellowstone Lake, August 23. 



Sagittaria variabilis, Engelm. — Xear Ogden, Utah, June 16; Henry's 

 Fork of Snake River, August. 



Sagittaria variabilis, Engelm., var. hastata, Gray. — Divide between 

 Marsh and Malade Valleys, June 29. 



Sagittaria variabilis, Engelm., var. diversifolia, Gray. — Weber River, 

 Utah, June 19. 



ORCHIDACEJE. 



Hahenaria hyperborea, R. Br. — Swamps near Ogden, Utah, June 7 ; 

 Upper Teton (Janoii, Jaly 28. 



Hahenaria dilatata, Gray. — Swamps near Ogden, Utah, June; Henry's 

 Fork of Snake River, August; Teton River, July. Common along 

 almost all the streams in the West. 



Habenaria fwtida, S. Watson, {Platanthera, Gey.) — Wooded Caiion of 

 T6ton River, Jul^'. 



Spiranthes Pomanzoffmna, Cham. — Snake River Valley, July ; Teton 

 foot-hills, August; Fire-Hole Basin; Shoshone Lake, September; Jack- 

 son's Lake. Common almost anj-where along the roule. 



Goodyera Menziesii, Lindl. — East caiions of Teton Range, September. 



Epipactis gigantea, Dougl. — Swamps near Ogden, Utah, June. 



Corallorkiza multijfora, Nutt. — Shoshone Lake,* Wyoming, Sejitember. 



IRIDACE^. 



Iris tenax, Dougl. — Teton Basin, July.. 



Sisyrinchiuni Bernmdiana, L. — Malade Valley, Idaho, June; Henry's 

 Fork of Snake River, August. 



LILIACEJE. 



Zygadenus glaucus, Nutt. — Upper Caiion of the Madison, August; Te- 

 ton Caiion, July; Trail Creek Mountains, Wyoming, elevation 10,000 feet, 

 September. 



