392 APPENDIX D. BOTANY. 



Lygodesmia juncea, Don; Hook, Fl. Bor. Araer. 1, p. 295. — 

 Stansbury's Island, Salt Lake, June 23. The Leads in our speci- 

 mens are quite as large as in L. grandiflora. Captain Stansbury 

 states that the flowers are purple. 



Malacothris sonchoides, Ton*, and Gray, Fl. 2, p. 486. — Shore 

 of the Salt Lake, and on Carrington's Island, May 30. The 

 pappus is decidedly double in this species. The outer series con- 

 sists of five slender, nearly glabrous, and somewhat persistent bristles; 

 the inner of about fifteen scabrous capillary bristles, which are 

 caducous, and separate in a ring. I have seen the same character 

 in two or three other species. Dr. Gray, in his Plantce Fendleri- 

 ance, (p. 113, No. 453,) says that he noticed in " M. sonchoides, 

 M. Coulteri, and especially in M. Califorrtica, that two (opposite) 

 bristles of the pappus are naked, instead of barbellate, and rather 

 stronger and less desiduous than the others." In M. sonchoides 

 I believe the outer series always consists of five bristles; but in 

 some species they are variable in number, and in others are entirely 

 wanting. 



Crepis acuminata, Nutt. 1. c; Torr. and Gray, Fl. 2, 489.— 

 Stansbury's Island, Salt Lake, June 23. This is the tallest of our 

 indigenous species of Crepis. Some of our specimens are about 

 three feet high. The radical leaves (including the petioles) are 

 more than a foot in length. 



Plate VIII. Crepis acuminata, of the natural size. Fig. 1, a 

 separate flower magnified, as are the following. Fig. 2, an achenium 

 with its pappus. Pig. 3, one cf the hairs of the pappus. 



Troximon cuspidatum, Pursh, Fl. 2, p. 742.— Valley of the 

 Salt Lake. 



Castilleja hispida, Benth. in Hook. Fl. Bor. Amer. 2, p. 105. 

 — Shore of the Salt Lake, May. 



C. miniata, Dougl. in Hook. Fl. Bor. Amer. 1. c— With the 

 preceding. 



C. sessiliflora, Pursh, Fl. 2, p. 738. — Weber River. 



Pextstemon grandifloroi, Nutt. in Fras. Catal., 1813. — On 

 the Arkansas Ptiver. 



. Eritrichium glomeratum, D C. Prodr. 10, p. 131. Mgosotis 

 glomerata, Nutt.— Near Salt Lake City. Fl. April 29. 



