244 BOTANY. 



sessile, oblong-lanceolate, subacute, i-1' long, the radical ones more or less 

 glabrous beneath, the cauline distanf ; racemes elongated or crowded ; calyx 

 5-parted, densely hirsute with brownish yellow hairs, lobes lanceolate, acute, 

 about equaling the corolla-tube ; corolla white or pinkish, the limb li-3" 

 broad, exceeding the tube, the throat with 5 prominent scales ; nutlets rugose, 

 and granulate-tuberculate between the ridges. — The matured fruit, seen only 

 in specimens collected by Stretch near Washoe City, is broadly ovate with 

 an abrupt broad strongly incurved apex, somewhat tuberculate-cristate and 

 also tuberculate-margined, obscurely transversely rugose. The only difference 

 to be found between this a,nd numerous specimens of Plagidbotrys canescens, 

 Benth., is in the somewhat more strongly rugose fruit of the latter, and there 

 can be little doubt that the two species should be united. California to Wash- 

 ington Territory. Foot-hills near Carson City ; April. (855.) 



Eeiteichium miceanthum, Torr. Bot. Mex. Bound., 141. Annual, low 

 (2-4',) canescently hispid ; stem much and diffusely branched from the base 

 upward ; leaves linear, obtuse, 3-6" long ; racemes short, long-bracted ; flow- 

 ers crowded ; calyx-lobes linear ; corolla very minute, the throat naked ; 

 nutlets oblong, rather acute, very glabrous, convex upon the back, the inter- 

 nal angle prominent and sulcate.— The flowers, are in short subcapitate 

 racemes, sessile, shorter than the foliaceous linear bracts ; corolla white, less 

 than 1" long, remaining calyptra-like after fading, the narrow tube equaling 

 the calyx, without appendages, the lobes small and ovate ; nutlets i-f" long, 

 shining, adherent to the slightly longer style by the whole inner angle, in 

 this respect holding an extreme place in the genus. Indeed it does not differ 

 from the genus Krynitzkia, as was observed by Dr. Torrey, except in its 

 persistent calyx, while the point of attachment of the seed within the ache- 

 nium is even higher than in K. leiocarpa. But a deciduous calyx is by no 

 means a constant character in that only species of that genus, and as the 

 recognized EritricUums vary considerably among themselves in the mode of 

 attachment of the seed, and of the achenium to the style, there seems to be 

 too little ground for the separation of these two species. Western Texas and 

 New Mexico. Found on the sandy shore of Stansbury Island in Salt Lake ; 

 June. The roots afford a rich purple dye. (856.) 



Eeiteichium leiocaepum. {Krynitzkia, F. & M., DC. Prodr. 10. 134. 

 See remarks under the last species.) Annual, 6-18' high, hispid ..ith more 

 or less spreading hairs, diffusely branching from the base, the branches elon- 



