190 



EEYTHEA. 



many eauline also, these diminishing upwards; the whole 

 plant, especially the calyx, pedicels, and upper part of stem, 

 canescently tomentulose: leaves slightly fleshy, cut into 

 many linear segments, each of these tipped with a white 

 callosity : flowers rather large, very deep azure, in a narrow 

 simple^ and strict raceme; spur stoutish, horizontal or 

 ascending, curving downwards from near the tip. 



Common plant of the very high plains toward the head- 



W 



Colo- 



rado. First collected by Nuttall, whose specimen (Herb. 

 Brit. Mus.) is ticketed " D. hicolor? collected in Rocky Mts. 

 by myself," though it is far enough from being his D. hicolor. 

 It is also Geyer's n. 163 of « Slopes of undulating plains 

 between the Kansas and Platte rivers, with CEnoiJiera 

 serridata." It is one of several easily distinguishable plants, 

 from widely sundered, and very different climatic regions, 

 which Dr. Gray referred to D. azureum. 



Phacelia leptostacliya. Annual, stout, widely branching 

 from the base and decumbent, the branches often 2 feet long 

 or more, sparsely pilose-hispid with spreading brownish 

 hairs, and slightly glandular- viscidulous: leaves ample, the 

 lowest tripinnately dissected: spike-like racemes neither 

 clustered terminally nor in pairs, but usually solitary and 

 placed at intervals up and down the whole plant, in fruit 

 commonly 6 inches long or more: calyx hispid, and with a 

 shorter, denser, hirsute pubescence beneath; sepals spatulate, 

 one of them conspicuously longer, and twice as wide at the 

 tip as the others: corolla small, broadly funnelform with 

 short rotate limb, little surpassing the calyx, and of a dingy 

 greenish white: stamens conspicuously exserted, seeds 4, 

 light brown, rugose-murieate. 



A number of years ago, knowing this plant well, and not 

 finding it recognized by any botanical author, I sent it to 

 Asa Gray as a new species. Up to that time he had himself 

 overlooked altogether Bentham's P. disians, and wrote me at 

 once that this was the long forgotten species of Bentham. 

 On this authority I described this plant in my Manual as 



