BOTANY. 167 
ACTINOMERIS HELIANTHOIDES, Nutt. Gen. 2, p. 181. Near Fort Washita; April. 
THELESPERMA FILIFOLIA, Gray, in Hook. Kew. Jour. Bot. 1, p. 252, and Pl. Wright. 1, p. 109. 
Head-waters of the Colorado; April. Also probably T. eracus; but not yet in flower. 
ConEoPSIS GRANDIFLORA, Nutt.; Torr. and Gray, Fl. 2, p. 345. On the Colorado; April. 
Coreopsis TINOTORIA, Nutt. Near Fort Washita; April. 
CHRYSACTINIA Mexicana, Gray, Pl. Fendl. p. 9%. Near Independence Spring; March. With- 
out flowers. 
HYMENATHERUM (AcreHYLLEA) AcEROSUM, Gray, Pl. Wright. 1, p. 115. On the Pecos and 
Llano Estacado; March, April. 
HYMENATHERUM PENTACILETUM, DC. Prodr. 5, p. 642. On the Pecos; March. 
AGASSIZIA SUAVIS, Gray and Engelm. Pl. Lindh. 2, p. 220. Western Texas; April. 
GAILLARDIA AMBLYODON, Gray; Torr. and Gray, Fl. 2, p. 267; Gray, CH. Bor.-Am. t. 4. 
Western Texas; April. 
GAILLARDIA PINNATIFIDA, Torr. in Ann. Lyc. New York, 2, p. 214; Torr. and Gray, Fl. 2, p. 
366. Llano Estacado to the Colorado; March, April. 
GAILLARDIA PULCHELLA, Fougeroux; Torr. and Gray, l. c. Western Texas; April. 
HYMENOPAPPUS CORYMBOSUS, Torr. and Gray, Fl. 2, p. 272. On the Colorado, &c.; April. 
BAHIA ABSINTHIFOLIA, Benth. var. DEALBATA, Gray, Pl. Wright. 1, p. 121. On the Pecos; 
March. 
RuppELLIA TAGETINA, Nutt.; Torr. and Gray, Fl. 2, p. 262; Torr. in Emory’s Hep. t. 5. 
Llano Estacado ; March. 
AMBLYOLEPIS SETIGERA, DC. Prodr. 5, p. 568; Gray, Pl. Wright. 1, p. 121. From the Llano 
Estacado to the lower Colorado ; March, April. 
ACTINELLA SCAPOSA, Nutt. in Torr. and Gray, Fl. 2, p. 382. On the Pecos and Llano Esta- 
cado; March. 
ACTINELLA LINEARIFOLIA, Nutt.; Torr. and Gray, l. c. On the Pecos. 
AcTINELLA RICHARDSONII, Nutt. Picradenia Richardsonii, Hook. Near the Pecos; March. 
HELENIUM TENUIFOLIUM, Nutt.; Torr. and Gray, Fl. 2, p. 385. Western Texas; April. 
MansHALLIA casprtosa, Nutt. in DC. Prodr. 5. p. 680. On the upper Colorado; April. 
AcHILLEA MinLEFOLIUM, Linn. Near Fort Washita and on the Colorado. 
ARTEMISIA DRACUNCULOIDES, Pursh; Torr. and Gray, Fl. 2, p. 216. Sacramento river to 
the Llano Estacado ; March. 
ARTEMISIA Lewistt, Torr. and Gray, Fl. 2, p. 217. Pecos to the Llano Estacado ; March. 
AnrEMISIA LupovicrANA, Nutt.; Torr. and Gray, Fl. 2, p. 420. Cotton-wood Springs, New 
Mexico, &c.; March. 
GNAPHALIUM LUTEO-ALBUM, Linn. New Mexico and Western Texas. 
SENECIO FILIFOLIUS, Nutt. var. Jamesu, Torr. and Gray, Fl. 2, p. 444. On the Pecos and 
upper Colorado. 
Senecio LoBATUS, Pers.s Torr. and Gray, l. c. Western Texas; April. 
Crrstum VIRGINIANUM, Michz. Fl. 2, p. 90. Western Texas; April. 
Cirsium UNDULATUM, Spreng.; DO. Prodr. 6, p. 651. Llano Estacado, &c. 
CENTAUREA AMERICANA, Nutt. Near Fort Washita; April. 
PEREZIA NANA, Gray, Pl. Fendl. p. 111. On the Pecos; March. The foliage only. 
Apogon HUMILIS, EU. Sk. 2, p. 267. Western Texas; May. 
KRIGIA OCCIDENTALIS, Nutt.; Torr. and Gray, Fl. 2, p. 467. Western Texas; May. 
