262 Engelmann and Gray; 
“306. Arnora (vide No. 175, supra) mvwmas (m. sp.): 
strigoso-pilosa ; caulibus basi ramosissimis adscendentibus dif- 
fusis ; foliis oblongis ovato-lanceolatisve obtusis basi attenuatis 
brevissime petiolatis superne demum glabratis; capitulis axil- 
laribus folio multum brevioribus paucifloris ; petalis in fl. masc. 
calycem paulo superantibus lanceolatis, in fl. foemineo subulatis 
glandulis disci brevioribus. — In hard clayey soil, west of the 
Brazos. March — August. (Also, Texas, Drummond, Col- 
lection Second, No. 230,and Dr. Wright.) Plant 6 to 8 
inches high ; the base of the stem ligneous. - Leaves an.ineh 
or an inch and a half long. The clusters contain one fertile 
and about four staminate flowers. The fruit and seeds not 
half the size of those of the two other Texan species; the 
latter globose and rugose, as in the other species, at first 
curiously striate-reticulated, but when old more even. 
/ 301. Tracts BREVISPICA (n. sp.) : multicaulis, ramosa; de- 
cumbens; ramis apice flexuosis vel subvolubilibus ; foliis e 
basi cordata truncatavé triangulari-lanceolatis (superi 
fere linearibus) irregulariter acute dentatis parce pilosis petio- 
latis; spicis folio oppositis multo brevioribus ; flore fcemineo 
ad basin unico, masculis paucis ; capsulis hispidulis. — Black, 
clayey soil, in the prairies west of the Brazos. May — uly. 
Differs from T. urticæfolia (perhaps not specifically) in thé 
procumbent stems, which often form diffuse tufts two or three 
feet in diameter, and the. smaller and narrower leaves, as well 
as the short — and pelle: flowers and fruit; the latter is 
less. hispid. 
3908. FORESTIERA ACUMINATA, Poir. Banks of- i. Juste, 
near San Felipe. March. It extends as for north as on the 
- Wabash, in Illinois.' 
—.809. Quercus CINEREA, pone Sandy, hilly soil ; fom 
ing groves in the. pretio west of the Brazos, along - wiih 
Iu CRASSIFOLIA, Nutt. vas pining "eap by Hu 5 vided 1 
ne for the second infe in September. - 
into eight li dier ace the ovary ; and fruit ar b n 5s 
t 
