lo Colorado Plants. [zoe 



calyx of linear-lanceolate divisions hirsute, glandular, and 

 ciliate with crimped hairs; corolla purplish blue, hardly bila- 

 biate, spreading lobes orbicular; two of the stamens inserted at 

 the base, the other two half way up the limb, nearly on a line 

 with the sterile filament which is moderately bearded down the 

 side with hairs pointing downwards. In the descriptions of 

 Penstemons no attention has been paid to the insertion of the 

 filaments which may prove of use in determining species that 

 seem closely related. This belongs to the Genuini and is nearest 

 P. albidus of which it may prove to be a variety. It differs from 

 P. albidus in being less glandular, the shape and attachment of 

 the leaves, the more interrupted inflorescence, the color and 

 shape of the corolla, the denser beard of the sterile filament and 

 in the explanate anthers which in P. albidiis are orbicular and 

 in P. Moffatii, oblong. It was collected at Grand Junction along 

 the railroad to the coal beds, and I have named it in honor of 

 David H. Moffat, ex-President of the D. & R. G. R. R., whose 

 courtesy and kindness I wish to acknowledge. 



Abronia turbinata Watson. This varies in the fruit, the 

 wings in some specimens being well developed; in others, more 

 or less aborted. 



Atriplex corrugata Watson. This was collected at 

 Grand Junction, in May, 1892, with both moncecious and 

 dioecious plants. The plants collected the previous season from 

 which the description was made were all dioecious. 



Eriogonum brevicaule Nutt. This is the plant which 

 Nuttall named E. campamdatuvt, but which with iS". viicrantJncni 

 Nutt. Dr. Gray reduced to E. brevicaule. He says that these 

 three species are not permanently distinguishable even as 

 varieties. The descriptions omit the most striking feature of the 

 flower, the urn-shaped perianth, constricted at the throat and 

 angled along the sides. All the flowers examined on the Grand 

 Junction plants have perfect flowers. 



Eriogonum glandulosum Nutt. This has been but rarely 

 collected, and the description is imperfect. My specimens agree 

 with Nuttall's description of Oxytheca glandulosa under which 



