916 Engelmann and Gray, 
46. A. teprocarpus, Torr. Gr. I. c. April, with the 
preceding. "e 
47. Mimosa sTRIGILLOSA, Torr. & Gr. Fl. I. p. 399. Tet- 
ramerous, octandrous. Hard clayey soil. April, June. — We 
have this plant in cultivation. The foliage is nearly as sensi- 
tive to the touch as M. pudica. 
48. NEePTUNIA LUTEA, Benth. in Hook. do Bot. IV. p. 
356. Acacia lutea, Leav. ; Torr..& Gr. l. c. Moist prairies; 
April — June. 
49. Acacia HIRTA,. Nutt. in. Torr. & Gr.l.c.; and 
50. Ê craBRroR. Dry, open woods around aca May, 
. June, and frequently flowering again in September. 
51. Acacia Farwestana, Willd. ; Benth. Nearly the only 
shrub on Galveston Island, where it attains the height of 6 or 
7 feet, and forms considerable thickets. Its odorous flowers 
are producéd in April or May. Certainly indigne to TA 
and probably also to Florida. 
59. LYTHRUM ALATOM, var. y, Torr. & Gr. Fl. ke p. 482. 
* L. foliosum, n. sp.” Engel. MSS. (who has noticed two 
states, viz., 1. stamineum ; filaménts as long as the darker 
colored pete; the style ioi -exceeding the calyx, and the 
ovary frequently sterile? 2. stylosum ; filaments as long as 
the calyx only, the style as long as the apparently smaller and 
paler petals, or longer.) But, if a distinct pigias it » fall 
under L. lanceolatum, Ell. 
53. CExornrRaA Drummonpu, Hook. iita of — 
April, May ; also in the autumn. 
54. CE. LixrFor1A, Nutt. Galveston Island. 
55. CE. speciosa, Nutt. Houston. April, May.. 
56. Œ. nBousiPETALA, Nutt. in Torr. & Gr. Fl. Lp 495. 
This handsome speciés, so remarkable for its acute or acumi- 
_ nate petals, has been cultivated in the botanic garden of Har- 
vard University from seeds received from Mr. Lindheimer. 
specimens have broader leaves and petals than those from 
Arkansas ; the upper leaves ovate-lanceolate, closely sessile and 
somewhat cordate. The pods are cylindrical-prismatic, some- 
