- 948 Engelmann and Gray, 
951. Berus mNTEGRIFOLIA, Michz. A form with smaller 
heads and fewer rays than usual. Prairies. April — May. 
252. SoLrpaAco AxcusTIFOLIA, Ell., Torr. & Gr.l.c. Wet 
prairies (and even on dry soil) and banks of rivulets, very. 
remote from salt water. June — August. 
253. IsorAPPUs pivaricatus, Torr. é& Gr. FT. II. p. 239. 
Light sandy soil. August — September. 
254. I. Hooxertanus, Torr. & Gr.l. c. Sandy prairies 
and on sandstone rocks on the Cólorado. September. The 
specimens vary from six inches to two feet high; some are 
simple, others much branched from the base. The rigid 
leaves are narrowly spatulate-lanceolate ; the heads pretty 
numerous, on short erect peduncles. 
955. GRINDELIA IÑULOIDES, Willd. Prairies west of San 
Felipe. July August. Stem. five to six feet high, branch- 
ing only above. 
956. CALYMMANDRA canpipa, Torr. & Gr. l c. Open 
woods west of the Brazos. April — May.’ 
. 951. Sirenum scaBEnnIMUM, Ell. Woods near Industry. 
May — July. 
258. Harea Lupovrerana, Torr. & Gr. Fl. IL. p. 304. 
Sandy post-oak woods, west of the Brazos. May — August. 
— Lowest leaves rhombic-ovate, or ovate-lanceolate, acute Or 
acuminate, abruptly contracted into winged petioles early 
as long as the blades, which are somewhat connate at the 
. Exterior involucre with four rather strongly marked 
Salient angles at the junction of the scales, whitish-tomentose 
inside. : " 
859. HELIANTHUS LENTICULARIS, Dougl. Low woods and 
wet prairies. July — August. - In rich bottom woods it often 
attains the height of ten or twelve feet, with the lower leaves 
six to eight inches broad. Flowers two and a half to three 
and a half inches in diameter; achenia oval, thicker than 1$ 
usual in the genus. ~ | . 
Tus rs to be this 
! Preaocavion vincATUM, DC. A few dificimens of what appears 
West Indian species, were gathered near Houston, in open pine woods. September 
