GEOLOGICAL SUEVEY OF THE TERRITORIES. 479 



Pentstemon liumilis, Nutt. — Denver j Wyoming Territory j August to 

 September. 



Pentstemon confertus, Dough, var. coeruleo-purpureus, Gray. — Mountains 

 near Denver ; North Park, Colorado Territory. 



Mimulus Jamesii, Torr. — Near Denver. 



Mimulus luteus, L., Wyoming Territory ; August to September. 



Hysantlies gratioloides, Benth. — North Park, Colorado Territory. 



Veronica Americana, Sckw. — Henry's Fork of Green River. 



Veronica serpyllifolia, L. — Henry's Fork of Green Eiver. 



Gastilleia integra, Gray. — Near Denver. 



Castilleia pallida, Nutt. — Denver; Uinta Mountains. 



Orthocarpns luteus, Nutt. — Denver ; Uinta Mountains. 



Pedicularis bracteosa, Benth. — Mountains near Denver. 



Pedicularis Groenlandica, Eetz. — Uinta Mountains. 



VERBENACEJE. 



Verbena bracteosa, Michx. — Denver ; Wyoming Territory. 

 Verbena stricta, Vent. — Camp Carlin, Wyoming Territory. 



LABIATJE. 



Mentha Canadensis, L. — Henry's Fork of Green Eiver. 

 Hedeoma Brummondii, Benth. — Wyoming Territory 5 August to Sep- 

 tember. 

 Monarda fistulosa, L. — Near Denver. 

 Monarda aristata, Nutt. — Near Denver. . 

 Scutellaria resinosa, Torr. — Near Denver. 

 Scutellaria gaUriculata, L. — Near Denver. 

 Stachys palustris, L., var. aspera, Gray. — Denver. 

 Stachys palustris, L., var. cordata, Gray. — Wyoming Territory. 



BORRAGINACE^E. 



Onosmodium Carolinianum, DC. — Denver. 



Mertensia alpina, Don. — Mountains near Denver. 



Mertensia paniculata, Don. — Mountains near Denver. 



Mertensia Sibirica, Don. — Mountains near Denver, Uinta Mountains. 



Lithospermum pilosum, Nutt. — Denver. 



Lithospermum liirtum, Lehm. — Denver. 



Echinospermum Eedowski, Lehm. — Denver, Wyoming Territory. 



Echinospermum floribundum, Lehm. — Denver. 



EritricMum crassisepalum, Torr. and Gray. — Denver. 



EritricMum Jamesii, Torr. — Near Denver. 



EritricMum glomeratum, DC, {Myosotis glomerata, Hook. , Fl. Bor. 

 Am. 2. p. 82. t. 162,) var., hispidissimum, Torr. in Emory's Eep. Bound. 

 Surv. 2. p. 140. (fide Gray.) — Camp Carlin, Wyoming Territory, July 30, 

 1870, F. V. Hayden. — -Stem 8 to 10 inches high. Eacemes mostly bifid 

 or trifid, 3 to 4 inches long, much surpassing the leaves. Flowers small 

 and somewhat scattered, rather shorter than the acute, lance-ovate 

 bracts. Limb of the corolla 2 lines in diameter, its narrow tube about 

 as long. Nutlets 4, reticulate-rugose on the back. 



EritricMum virgatmn, sp. nov. Sesquipedale, hispidissimum ; caule 

 simplici tereti erecto; foliis radicalibus oblongo-spathulatis, caulinis 

 linearibus; cymis plurimis in axillis foliorum couglomeratis peduncula- 

 tis superne subsessilibus confertisque ; calycis 5-partiti segmentis lance- 

 olatis tubum corolla} aequantibus ; nuculis 4-ovatis dorso infra partem 

 mediam convexo supra lateribus depresso laevibus nitidis. — Near Den- 

 ver, Colorado Territory, 1869, B. H. Smith. The stout virgate spike 



