240 Engelmann and Gray, 



speciosa. — 60. Gaura sinuata. — 80. Gutierrezia Texana. — 

 83. Solidago leptocephala. — 94. Echinacea angustifolia. — 

 96. Helianthus cucumerifolius. — 104. Gaillardia amblyodon. 

 — 107. Hymenopappus artemisiaefolius ; with the leaves, as 

 usual, extremely variable ; some of them occasionally obovate- 

 lanceolate, and perfectly entire. — 110. Marshallia csepitosa ; 

 growing in scattered plants on the dry prairies near the Mill 

 Creek. — 137. Herpestis cuneifolia, in fruit. — 138. Buchnera 

 Americana /?. parviflora, in flower. — 145. Salvia azurea. — 

 153. Monarda aristata, which in the inland parts of Texas 

 appears to take the place of M. punctata near the coast. — 

 161. Utricularia subulata. — 167. Eriogonum longifolium /3. 

 plantagineum. — 169. Stillingia sylvatica, in fruit. — 174. 

 Euphorbia bicolor. — 175. Aphora mercurialina, in flower. — 

 184. Commelyna angustifolia. — 199. Allium mutabile. Shady 

 moist places on Mill Creek. April, May. Larger specimens 

 than those gathered in 1843, near Houston, 12 to 20 inches 

 high, the umbel not bulbiferous. Ovary with a crown of 

 three scales, which disappear as the capsule ripens, (in this 

 respect unlike A. stellatum and A. reticulatum,) 6-ovuled ; 

 the capsule 1-3-seeded. — 1S9. Eustylis purpurea: rather 

 common between the Brazos and the Colorado. April — Au- 

 gust. — 198. Scilla angusta, nob. ■ Dry prairies west of the 

 Brazos. April. 



215. Brasenia peltata, Pursh. Specimens in fine fruit, 

 gathered in July in clear rivulets between the Brazos and the 

 Colorado. 



216. Draba cuneifolia, Nutt. in Torr. fy Gr. Fl. I. 108. 

 Dry grassy places, March. — In some specimens the silicles 

 are almost, if not quite, glabrous. D. micrantha, Nutt., which 

 differs only in the like respect from D. Caroliniana, is probably 

 therefore a mere variety of that species. 



217. Vesicaria auriculata (n. sp.) : annua, caulibus de- 

 cumbentibus canescenti-hirsutis ; foliis sparsim pilosis, infimis 

 lyrato-pinnatifidis sinuato-dentatisve basi attenuatis, caeteris 

 ovato-lanceolatis basi cordato-auriculata sessilibus vel semi- 



