Plants Lindheimeriana. 213 



capsula ovato-conica calycem vix superante uniloculari; se- 

 minibus flavis longitudinaliter costatis. — Clayey soil in pine 

 woods near Houston. June. Also in Louisiana, Arkansas, 

 &c. not uncommon. This is the plant mentioned in Torr. 

 fy Gr. Fl. N. Amer. under H. mutilum. It appears so 

 different from the ordinary form of that species, that we are 

 obliged to separate it. It varies from 6 to 20 inches in 

 height. 



18. Paronychia Drummondii, Torr. fy Gr. Fl. I. p. 170. 

 July. 



19. P. setacea, Torr. fy Gr. I. c. West of the Brazos, 

 with the preceding, &,c. 



20. Silene Antirrhina, Linn. var. subglabra ; and 



21. var. l#:vigata; the leaves smooth, and with smooth 

 margins. Galveston. 



22. Linum Berendieri, Hook. Bot. Mag. t. 3480. Sandy 

 downs of Galveston Island. April, May. Perennial? No 

 doubt distinct from L. rigidum. Styles connate above the 

 middle. The name should, if we mistake not, be L. Ber- 

 landieri. 



23. Xanthoxylum Carolinianum, Lam. "Pepper-tree, 

 Toothache-lree." March. 



24. Sida Lindheimeri (w. sp.) : annua? puberula; caule 

 erecto ramoso ; foliis linearibus vel oblongo-linearibus serratis 

 basi subcordatis ; stipulis lanceolato-setaceis petiolum sub- 

 eequantibus ; pedunculis folium demum sequantibus ; carpellis 

 10-12 reticulato-rugosis, apice breviter birostratis extus pu- 

 bescentibus et angulo interno in dentem subuncinatum brevem 

 introrsum productis. — Prairies east of the Brazos. June to 

 August. (Also collected in Louisiana by Dr. Carpenter.) 

 About 2 feet high ; the leaves 1-2 inches long, and 2-4 lines 

 wide. Peduncles articulated about three-fourths of an inch 

 below the fruit. Flowers (the yellow corolla an inch or more 

 in diameter) and fruit larger than in S. rhombifolia, from 

 which the carpels of the present species differ by their shorter 

 and blunter horns, reticulated sides, and by the tooth project- 



