230 Engelmann and Gray, 



158. D. ciliosus, N. ab E. in Linn. XVI. p. 294. =i Ru- 

 ellia ciliosa, Pursk. Open woods, Houston. June. 



159. Dianthera humilis. In clear water. June. 



160. Dicltptera brachiata, Spreng. Shady woods, 

 Houston. June — September. Seeds hispid, with short, 

 minutely glochidiate bristles. 1 



161. Utricularia subulata, Linn. Wet prairies of Gal- 

 veston Island. April. 



162. Samolus ebracteatus, H. B. K. Sandy brackish 

 soil, Galveston. April. It is singular that this should have 

 been overlooked by Duby, in DC. Prodr., as a North Ameri- 

 can plant. It was recorded as such by Torrey in the report 

 on the plants collected in Major Long's Expedition, and is not 

 uncommon along the coast from Florida to Texas. The 

 leaves in the Texan plant, as generally in our specimens, are 

 obovate or broadly spatulate, tapering into pretty long winged 

 petioles, which are decurrent on the stem. 



163. Plantago gnaphaloides, Nutt. Galveston Island. 



164. P. aristata, Michx. Houston, &c. April. 



165. Iresine celosioides, Linn. Houston. September. 



166. Oplotheca Floridana, Nutt. Prairies and open 

 woods in loose sandy soil, west of the Brazos. August. 



167. Eriogonum longifolium, JSutt., Benth. p planta- 

 gineum : foliis brevioribus latioribusque. Dry prairies west of 

 the Brazos. July, August. The same form occurs in Drum- 

 mond's Third Texan Collection, No. 352. 



168. Polygonella ericoides. = Gonopyrum America- 

 num, Fisch. &f Meyer, in Mem. Acad. St. Petersb. (ser. 6.) 

 IV. p. 144. Prairies, west of San Felipe, on the Brazos. 



1 Among Lindheimer's plants a few specimens were received of the Ruellia 

 justiciaeflora, Hook. Comp. to Bot. Mag. I. p. 176, which has also been distributed 

 by Dr. Riddell, under the name of Eberlea. We refer it to the genus Hygrophila, 

 R. Br. To the character given by Hooker, for the most part excellent, we may add, 

 that the stem and leaves are somewhat fleshy, and that the upper lip of the corolla 

 is not entire, but 2-cleft. The anthers of the shorter pair of stamens are smaller 

 than the others, but are polliniferous and 2-celled. The plant grows in wet 

 swamps, and flowers in the autumn. 



