APPENDIX D. BOTANY. 3S9 



Pettcedantjm biterxatum, (var. ? platycarpum.) — Fructibus 

 obovatis, alii membranaceis disci sesquilatioribus. — Witb the pre- 

 ceding. Except in the broadly-winged fruit, this plant does not 

 appear to differ essentially from P. biternatum, Nutt. 



Thaspium moxtaxum, Gray, Fl. Fendl. p. 57 1 On a mountain 

 bordering the Salt Lake. Fl. May 25. One specimen has a per- 

 ennial root, crowned with several spreading scapiform stems, which 

 are (in the flowering state) from five to eight inches long. The 

 whole plant is very glabrous and somewhat glaucous. The leaves 

 are bi-tripinnatrfidly cut, with oblong, acute, entire, or incised 

 lobes. The yellow flowers are in dense umbels, with numerous 

 rays. There is no involucre, and the involucels consist of 7-9 

 linear-lanceolate leaflets. The carpels of the young fruit are 

 furnished with five broad, undulate wings. The vittai in the iu- 

 t ervals seem to be solitary, or sometimes double. 



Aster obloxgifolius, Nutt. — Stansbury's Island, Salt Lake, 

 June 26. 



Erigerox coxcixxum, Torr. and Gray, Fl. 2, p. 174. — Valley 

 of Salt Lake, May 30. 



Dieteria pulverulenta, Nutt. in Torr. and Gray, Fl. 2, p. 

 101.— Green River, Sept. 12. 



Solidago Missouriexsis, Nutt. — With the preceding. 



Lixosyris viscidiflora, Torr. and Gray, Fl. 2, p. 234 — var. 

 serrulata ; ramulis scabriusculis ; foliis anguste linearibus triner- 

 vibus rigidiusculis acutis, margine serrulato-scabris ; capitulis fas- 

 tigiato-corymbosis subquinquefloris ; squamis oblongo-lanceolatis 

 glabris subquinquefariam imbricatis laxiusculis, exterioribus multo 

 brevioribus. corollis glabris. — Valley of the Salt Lake. 



Grindelia squarrosa, Dunal. — Bear River, near the Hot and 

 Cold Springs. Fl. May 10. 



Stexotus c^espitosus, Nutt. in Torr. and Gray, Fl. 2, p. 

 238.— Valley of the Salt Lake. 



Ambrosia coronopifolia, Torr. and Gray, Fl. 2, p. 291. — , 

 Table land at the northern extremity of Salt Lake Valley, Sept. 19. 



Lapiiamia Staxsburii, Gray, Plant. "Wright, 1, p. 101 and 129. 

 Monothrix Stansburiana, Torr. in Stansb. Rep. ed. 1, p. 390. — 



