BOTANY. 
167 
Actinomeris helianthoides, Nutt. Gen. 2, p. 181. Near Fort Washita; April. 
Thelesperma pilieolia, Gray, in EooJc. Kew. Jour. Bot. 1 , p. 252, and PI. Wright. 1, p. 109. 
Head-waters of the Colorado; April. Also probably T. gracilis; hut not yet in flower. 
Coreopsis grandiflora, Nutt.; Torr. and Gray, FI. 2, p. 345. On the Colorado; April. 
Coreopsis tinctoria, Nutt. Near Fort Washita; April. 
Ciirysactinia Mexicana, Gray, PI. Fendl. p. 93. Near Independence Spring; March. With¬ 
out flowers. 
Hymenatherum (Aciphylljea) acerosum, Gray, PI. Wriglit. 1, p. 115. On the Pecos and 
Llano Estacado; March, April. 
Hymenatherum PENTACHiETUM, DC. Prodr. 5, p. 642. On the Pecos; March. 
Agassizia suavis, Gray and Engelm. PI. Lindh. 2, p. 220. Western Texas; April. 
GtAILLARdia amblyodon, Gray; Torr. and Gray, FI. 2, p. 267 ; Gray, Chi. Bor.-Am. t. 4. 
Western Texas; April. 
GtAILlardia pinnatifida, Torr. in Ann. Lyc. New York, 2, p. 214; Torr. and Gray, FI. 2, p. 
366. Llano Estacado to the Colorado; March, April. 
G-aillardia ptjlchella, Fougeroux; Torr. and Gray, l. c. Western Texas; April. 
Hymenopappus corymbosus, Torr. and Gray, FI. 2, p. 272. On the Colorado, &c.; April. 
Bahia absinthifolia, Benth. var. dealbata, Gray, PI. Wright. 1, p. 121. On the Pecos ; 
March. 
Biddellia tagetina, Nutt.; Torr. and Gray, FI. 2, p. 262 ; Torr. in Emory’s Rep. t. 5. 
Llano Estacado; March. 
Amblyolepis setigera, DC. Prodr. 5, p. 568 ; Gray, PI. Wright. 1, p. 121. From the Llano 
Estacado to the lower Colorado ; March, April. 
Actinella scaposa, Nutt, in Torr. and Gray, FI. 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, FI. 2, p. 385. Western Texas ; April. 
Marshallia oespitosa, Nutt, in DC. Prodr. 5. p. 680. On the upper Colorado ; April. 
Achillea Millefolium, Linn. Near Fort Washita and on the Colorado. 
Artemisia dracunculoides, Pursh; Torr. and Gray, FI. 2, p. 216. Sacramento river to 
the Llano Estacado ; March. 
Artemisia Lewisii, Torr. and Gray, FI. 2, p. 217. Pecos to the Llano Estacado ; March. 
Artemisia Ludoviciana, Nutt.; Torr. and Gray, FI. 2, p. 420. Cotton-wood Springs, New 
Mexico, &c.; March. 
G-naphalium luteo-album, Linn. New Mexico and Western Texas. 
Senecio filifolius, Nutt. var. Jamesii, Torr. and Gray, FI. 2, p. 444. On the Pecos and 
upper Colorado. 
Senecio lobatus, Pers.; Torr. and Gray, l. c. Western Texas ; April. 
Cirsium Yirginianum, Michx. FI. 2, p. 90. Western Texas ; April. 
Cirsium undulatum, Spreng.; DC. Prodr. 6, p. 651. Llano Estacado, &c. 
Centaurea Americana, Nutt. Near Fort Washita ; April. 
Perezia nana, Gray, PI. Fendl. p. 111. On the Pecos ; March. The foliage only. 
Apogon humilis, Ell. Sk. 2, p. 267. Western Texas ; May. 
Krigia occidentalis, Nutt.; Torr. and Gray, FI. 2, p. 467. Western Texas ; May. 
