BOTANY. 
163 
Psoralea esculenta, Pursh, FI. 2, pi. 475, t. 22. On the Colorado, Western Texas; April. 
Psoralea obtusiloba, Torr. and Gray, FI. 1, p. 300. Western Texas; May. 
Psoralea floribunda, Nutt, in Torr. and Gray, FI. 1. c. Western Texas; May. 
Psoralea cuspidata, Pursh, FI. 2, p. 741. Western Texas; April. 
Psoralea digitata, Nutt, in Torr. and Gray, l. c. Western Texas; April. 
Dalea Formosa, Torr. in Am. Lye. N. York, 2, p. 78; and in Emory’s Pep. t. 1. Every¬ 
where between the Eio Grande and Western Texas. 
Petalostemon vtolaceum, Michx. Near Fort Washita. 
Petalostemon candidum, Michx. Near Fort Washita. 
Astragalus mollissimus, Torr. in Am. Lyc. N. York, 2, p. 178; Gray, PI. Wright. 1, p. 53. 
On the Llano Estacado, in sandy soil; March, April. Plant sometimes considerably caules¬ 
cent, and a foot high. 
Astragalus succumbens, Dougl. in Hook. FI. Bor.-Am. 1, p. 151. On the Pecos, Llano 
Estacado, &c.; March, April. The specimens are only in flower; in which state they very 
well accord with Douglas’ plant. Mr. Gordon also gathered it in flower on the Eaton mount¬ 
ains. 
Astragalus pauciflorus, Hook. FI. Bor.-Am. 1, p. 129. High grounds at the head-waters 
of the Colorado, Texas; April. 
Astragalus Missouriensis, Nutt. Gen. 2, p. 99. Guadalupe mountains to the Colorado; 
March, April. 
Astragalus cyaneus, Gray, PI. Fendl. p. 34. Between the Pecos and Llano Estacado. 
Probably too near the preceding species. 
Astragalus Nuttallianus, DC., var. trichocarpus and canescens, Gray, PI. Wright. From 
the Pecos to the Colorado; March, April. 
Astragalus Lindheimeri, Gray, PI. Wright. 1, p. 52. On the upper Colorado; April. 
Astragalus Candensis, Linn. Near Fort Washita; April. 
Astragalus, n. spj In flower only. High ground, on the eastern border of the Llano 
Estacado; April. 
Oxytropis Lamberti, Pursh, FI. 2, p. 740. Western Texas; May. 
Stylosanthes elatior, Swartz.; DC. Prodr. 2, p. 381. Western Texas; May. 
Desmodium canescens, DC. Prodr. 2, p. 238. Near Fort Washita. 
Lespedeza Stuvei, Nutt. Gen. 2, p. 107. Near Fort Washita. 
Sophora sericea, Nutt. Gen. 1 , p. 280. Western Texas; April. 
Cercis occidentalis, Torr. in PI. Lindh. 2, p. 177. Near Fort Chadbourne; May. 
Hoffmanseggia stricta, var. demissa, Bentli. in PI. Wright. 1, p. 56. Llano Estacado to the 
Colorado; April. In flower. 
Hoffmanseggia drepanocarpa, Gray, PI. Wright. 1, p. 58. On the Pecos. 
Hoffmanseggia brachycarpa, Gray, l. c. On the Pecos. 
Hoffmanseggia Jamesii, Torr. and Gray, FI. 1, p. 393; Torr. in Marcy’s Pep. t. 4. Llano 
Estacado. 
Cassia Pumilio, Gray, PI. Lindh. 2, p. 180; and PI. Wright. 1, p. 59. Llano Estacado, &c.; 
April. 
Cassia Baujhinioides, Gray, l. c. Llano Estacado; April. 
Cassia Rcemeriana, Scheele; Gray, PI. Lindh. 2, p. 179. Western Texas; April. 
Strombocarpa pubescens, Gray, PI. Wright. 1 , p. 60; (Prosopis, Benth.) Near Dona Ana. 
The fruit only; called Tornio, or Screw-tree; in some districts, Screio-bean. 
