On New Genera and Species of Nyctaginacee. 261 
lipe and the Pecos, may belong to this species; but it is as likely 
to be a depauperat® state of the preceding. These specimens 
have no developed flowers. , 
4, ACLEISANTHES ANISOPHYLLA (sp. nov.): glabella, humifusa ; 
foliis ovalibus seu ovatis basi obliquis vel oblique subcordatis in 
odem pari valde inzequalibus, altero nunc fere abortivo; tubo pe- 
tigonii evoluti limbo pluries longiore ; fructu 10-costato.—Prairies 
of Turkey Creek and Elm Creek, W. Texas, May. ( Wright, 
No. 598, 1706.)—Leaves somewhat resembling those of Allionia 
ineatnata, especially the glabrous variety, but much more une- 
qual; the larger one of each pair an inch or an inch and a half 
long, on a petiole of three or four lines in length ; while the 
smaller one is never longer than the petiole of its fellow, in the 
lowest cauline, and the latest rameal pairs sometimes obsolete or 
hearty so. The full-grown flowers are an inch and a half to two 
Inches in length; the precociously fertilized ones much smaller. 
Ihave seen the fruit only from the latter, and that not fully 
med; it is fusiform, or ovoid-oblong, and only two lines in 
* 
PENTACROPHYS, Nov. Gen. 
’ 
Tnvolucruam e bracteolis 3 subulatis, florem solitarium subsessi- 
lem fulcrans. Perigonium (perfectum ignotum,) florum in ala- 
“ito precoque fecundatorum tubulosum, breve. Stamina 2 
Stigma peltatum leve. Fructus cylindricus, truncatus, 5-costa- 
lus, costis crassis suberosis apice glandula magna umbonatis. 
Embryo conduplicatus, albumen farinosum ineludens ; cotyledone 
ittetiori minore. Herba humilis, e radice lignescente multicau- 
lis, diffusa, viscoso-pubens, scabrida; foliis oppositis petiolatis 
valibus ; floribus axillaribus et terminalibus parvulis. 
ACROPHYs Wricutu.—Stony prairies at the Big Bend of 
the San Pedro River, and between the Pecos and the Limpio, on 
Situmn, all of which were precociously fertilized, but not a sin- 
gle flower attained its full development. ‘The indigenous speci- 
; bore abundance of fruit, the younger surmounted by 
the undeveloped perigonium, but no expanded flowers were seen. 
From analogy, however, such may be expected to occur. In 
one instance, two flowers were detected in the same involucre, if 
or four lines lo A . . 
; ; its very thick ribs leave only narrow grooves 
between them. The mepatciel tissue of these ribs abounds in 
tubular cells, containing a spirally coiled thread, which is usually 
disengaged Upon the application of moisture. Dr. Torrey has. 
Seams, Vol. XV, No, 44.—March, 1853. : 
