Plante Lindheimeriane. 299 
153. M. aristata, Nutt. in Benth. Lab. p. 318, in 
Mem. Amer. Phil. Soc. (n. ser.) V. p. 186. Prairies east of 
the Brazos. June. 
154. Verpena stricosa, Hook. Compan. to Bot. Mag. 
I. p.176. Roadsides, near Houston. April —July. Lower 
leaves obovate and tapering into a winged petiole, doubly 
incisely toothed ; the upper tri-multifid. The hispid pubes- 
cence of the stem is not appressed. The foliage, the more 
slender spikes, and the much shorter fruit distinguish the 
species readily from V. stricta. i 
55. V. spuria, var. caulibus erectis; bracteis brevioribus. 
Dry prairies, Galveston, to the Brazos. March to J uly. 
156. Zapanta NODIFLORA; Lam. var. foliis lanceolato-cu- 
neiformibus. Downs of Galveston Island. ' April. 
151. Dipreracantuus (Pantcunarta, folia floralia in brat- 
leas parvas reducta, ideo cyma trichotoma terminalis) vupr- 
FLORUS (n. sp.): parce pilosus, demum glabratus; caule 
ereeto herbaceo ;" foliis ovalibus ovato-oblongisve obtusis mar- 
gine obsolete repandis basi in petiolum attenuatis; cymulis 
trifloris in cymam laxam - glanduloso-puberulam congestis ; 
bracteis lineari-lanceolatis pedunculis multo brevioribus ; tubo 
corollæ apicem versus sensim dilatato calycis lacinias atten- 
uato-subulatas duplo triplove longiore ; capsulis puberulis sub- 
clavato-cylindraceis vel oblongis utrinque acutis 8-1 2-spermis 
calycem equantibus. — Open woods at Sim's Bayou, near 
9ufton. May to July: Also, in Drummond’s Texan Col- 
lection, (Coll. 2, No, 221, and 3, No. 957.) Stems one to 
hà feet high, simple or branched from the base, slender, 
pubescent when young, as well as the leaves and petioles, 
with scattered hairs. Corolla two inches long. Anthers st e 
What included; the lobes slightly mucronate at the base. 
n2 a simple lamella, with a mere rudiment of the second 
oe. —This well marked species differs from the rest of the 
Senus in its inconspicuous bracts, and naked, more explicate 
inflorescence, which entitle it to the rank of a distinct sec- 
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