OCR Text |
Show APPENDIX D.- BOTANY. 889 PBUCEDANUM CITBRNATUM, ( var.? PLATYCARPUM.)- Fractions obovatis, alis membranaeeis disci sesquilatioribus.- With the preceding. Except in the broadly- winged fruit, this plant does not appear to differ essentially from P . biternatum, Nutt. THASPIUM MONTANUM, Gray.- FL Fendl. p. 57 ? On a mountain bordering the Salt Lake. Fl. May 25. One specimen has a perennial 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- tripinnatifidly out, 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 vittae in the intervals seem to be solitary, or sometimes double. ASTER OBLONGIPOUUS, Nutt.- Stansbury's Island, Salt Lake, June 26. ERIGERON CONCIKNUM, Torr. and Gray, Fl. 2, p. 174.- Valley of Salt Lake, May 30. DIETERIA PULVERULENTA, Nutt. in Torr. and Gray, Fl. 1, p. 101.- Green River, Sept. 12. SOLIDAOO MISSOURIENSIS, Nutt.- With the preceding. LUSTOSYRIS SERRULATA, Torr. ( nov. sp.)- Ramulis scabriusculis; foliis anguste linearibus trinervibus rigidiusculis acutis, margine serulatis; capitulis fastigiato- corymbosis subquadrifloris; squamis oblongo- lanceolatis glabris subquinquefariam, imbricatis laxiusculis, ezterioribus multo brevioribus, coroliis glabris.- Valley of the Salt Lake. GRINDELIA SQUARROSA, Dunal.- Bear River, near the Hot and Cold Springs. Fl. May 10. STENOTUS CJBSPITOSUS, 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. MONOTHRIX, Torr. ( nov. gen.)- Oapitulum hemisphericum, radia-tum. Involucrum subtriseriale; squamis subaequalibus oblongo- line-aribus. Receptaculum, nudum. Flores radii foeminei, uniseriales |