MONTANA BOTANY NOTES • 41 



Oenothera biennis L. Poison, Ravalli, Browning. 



Gayophytum caesium (Nutt.) T. & G. Alta. 



Gayophytum ramosissimum (Nutt.) T. & G. Alta, Garrison. 



Gayophytum diffusum (Nutt.) T. & O. Hot Springs. 



Gayophytum lasiospermum Greene. Darby. 



Epilobium augustifolium L. Common from Alta northward. 



Epilobium latifolium L. MacDougal Peak, Gunsight Pass, Blackfoot Gla- 

 cier, Upper Mariiis I'ass. 



Epilobium minutum Lindl. Mission Creek. 



Epilobium palustre L. Poison Swamp. 



Epilobium adenocaulon Hausskn. Common from Alta northward at low 

 elevations. 



Epilobium alpinum L.. MacDougal and McDonald Peaks, Tipper Marias 

 Pass. 



Epilobium Hornemanni Reich. This is a very doubtful species as it 

 seems to intergrade with E. alpinum. Common on all the high peaks from 

 Alta northward. 



Epilobium clavatum Trelease. A very doubtful species. MacDougal Peak 

 (Elrod and Umbach). 



Epilobium glandulosum Lehm. Swan Lake. 



Hippuris vulgaris L. Common in swamps throughout. 



Myriophyllum spicatum D. Dayton, Bigfork. 



Myriophyllum hippuroides Nutt. Common at Bigfork. 



Myriophyllum verticillatum L. Common on the shores of Flathead Lake, 

 Swan Lake. Daphina and iRost Lakes, Dayton, WTiitefish. 



Cogswellia macrocarpa (Nutt.) Jones. Common on dry prairies from 

 Missoula northward. 



Cogswellia simplex (Nutt. Bot. King 129 as Peucedanum). Common from 

 Alta northward. 



Cogswellia Altensis, n. sp. Allied to C. simplex. Stems several from a 

 fleshy, elongated, not tuberous root, dark-green, 7-15 cm. long, erect. Whole 

 plant smooth. Leaves biternate, with short root petioles and vaginate stem 

 ones. Leaflets nearly filiform, falcate, acute, 5-8 cm. long, entire. Peduncles 

 slender, about 1.5 dm. long. Rays very unequal, from 1.5-5 cm. long, slender, 

 3-6. Involucels of few needle-like bracts. Pedicels 2.5-7.5 mn. long, slender. 

 Fruit about 7 mm. wide and 12 mm. long, oblong-obovate, the wings as wide 

 as the body. Oil tubes solitary and large. Ribs evident and raised. Oil 

 tubes on commissure threadlike, one on each side of the midnerve, and with 

 another running down half way outside of it. iSeed nearly flat and with 

 linear cross section. WJngs thickest at inner edge where they are about 

 half as thick as the body of the seed. Alta, under pines on the upper edge 

 of the Middle Temperate life zone, on dry south slopes. 



Cogswellia Sandbergii (C. & R.) Jones. Subalpine on M'acODougal Peak, 

 also at Lake Loui.se near Sperry Glacier. This cannot be located In Coulter 

 and Rose's Monograph because it is placed under "glabrous throughout" in the 

 key, while the fruit is puberulent. 



Cogswellia ambigua (Nutt.) Jones. Mission Creek. 



Cogswellia montana (C. & R.) Jones. Missoula (Elrod). 



Angelica Roseana Hend. Mission Creek and McDonald Peak. 



Leptotaenia muitifida Nutt. Common in all the mountains to the alpine. 



Peptotaenia muitifida var. Eatoni (C. & R.) Jones. MacDougal Peak, 

 Alta. This include.s L. filicina Jones probably. 



Heraclueum lanatum Mx. Common from Alta northward. 



Ligusticum tenuifolium C. & R. Alta. 



Ligusticum Leibergi C. & R. Alta. 



Cymopterus EIrodi n. sp. Habit of C. thapsoides. Shortly caulescent and 

 densely branched from a woody root. Stems ascending, stout, 5-10 cm. long. 

 Peduncles 3 dm. long. Leaves with stout petioles longer than the blades, 

 blades ovate to deltoid in outline, ternately and then pinnately decompound, 



