1838 REPORT OF THE CHIEF OF ENGINEERS. 



Pentstemon glaucus, Graham, var. stenosepalus, Gray (346), &c. 



Frequently observed on Vallecito, &c, streams, Needle Mountains, September, 10,000 

 to 12,000 feet. 

 Pentstemon Hallii, Gray, (223, 231 bis, 384, 406, 401, 403). 



Common on Upper Rio Los Pinos, July, 9,000 to 10,500 feet. 

 Pentstemon confertus, Dougl. 

 Chionoimila Jamesii, Benth. 

 Mimulus luteus, L. (268). 



Along Rio Conejos, July, 7,900 feet, &c. 

 Synthyris alpina, Gray (15, 17). 

 Veronica alpina, L. (329). 



Near headwaters Rio Los Pinos and Vallecito, Needle Mountaius, September, 10,000 

 to 12,000 feet. 

 Veronica serpyllifolia, L. (230, 507, 508, 512-514, 534-536). 



Weeminucbe Pass and Upper Rio Los Pinos, July, 9,000 to 10,500 feet. 

 Castilleia linarisefolia, Bentb. 

 Castilleia parviflora, Brug. 

 Castilleia Integra, Gray. 

 Castilleia pallida, var. septentrionalis, Gh^ay (180, 183, 304, 225, 220, 283, 285, &c). 



Abundant ; along Upper Cbama, July, 8,500 feet ; upper waters of Los Pinos, Val- 

 lecito, and throughout Needle Mountains, July, August, and September, 9,000 to 

 12,000 feet. 



Castilleia miniata, Dougl. 

 Orthocarpus luteus, Nutt. 

 Pedicularis grcenlandica, Retz. (385). 



Upper Rio Los Pinos, 10,000 feet, and elsewhere. 

 Pedicularis racemosa, Dougl. 

 Pedicularis crenulata, Benth. 

 Pedicularis scopulorum, Gray. 

 Pedicularis Parryi, Gray. 



LABIATE. 



Monarda fistulosa, L. (1228, 501). 



Along Rio Navajo, on wagon-road and upper waters, 7,000 to 9,000 feet. 

 Monarda aristata, Nutt. 

 Lophanthus urticsefolius, Benth. 

 Brunella vulgaris, L. 

 Stachys palustris, L., var. (240). 



Observed along Rio Chama, July, 7,900 feet ; and elsewhere. 



BORRAGINACE^E. 



Lithospermium midtiflorum, Torr. (369). 



Watershed of Rio Piedra. &c, July, 7,400 feet. 

 Mertensia Sibirica, Don. (76?, 80?, 153). 



Frequently observed; from Rio Chama, &c, July, 9,000 feet, (168). 

 Mertensia oblongifolia, Don. ? 

 Mertensia lanceolata, DC. 



Eritricliium nanum, var. aretioides, Herder. (17, 20, 24). 

 Eritrichium glomeratum, DC. 

 Echinospermum Redowskii, Lehm. 



HYDROPHYLLACE.E. 



Phacelia circinata, Jacq. 



Phacelia sericea, Gray, (247, 249, 253, 254). 



Upper Rio Los Pinos streams, July, 9,000 to 11,000 feet. 



POLEMONIACE.E. 



Phlox csespitosa, Nutt. (21, 60). 



Collomia longiflora, Gray. 



Collomia aggregata, Porter, (2, 3, 61, 129, 438, 185, 187, 243, 280, 376, 493). 



Specimens taken in July: Upper Los Pinos Creek, 8,500 feet; Rio Chama, 8,000; Rio 

 Piedra and tributaries, 7,000 to 8,500 feet. 

 Gilia pinnatifida, Nutt. 



Polemouium confertum, and var. mellitum, Gray. (30, 31, 46, 54, 56, 71, 77). 

 Polemonium humile, Willd. (38, 45, 60). 



Needle Mountains and elsewhere, August and September, 10,000 to 12,000 feet. 

 Polemonium foliosissimum, Gray. 



