% oe first naturalist, it is believed, who explored the regions be- 
n Santa Fe, Chihuahua, and Saltillo) Wislizenia!” Fro: 
lis it is principally distinguished by its long stipitate ovary and capsule, 
» which latter is reflexed, and by the elongated racemes; it may, however, 
+. Je Os to be united with that genus. 
On the mountains about El Paso, ao es = those cylindraceous Opun- 
tiae was found, but much thinner and more slender than both species, 
mentioned previously. To judge from an impekfect description it must 
nearly related to the Mexican O. virgata, Hort. Vind. I have given it 
to 4 lines wide; nase from the uppers fascicles of leaves, — the top, 
one or several, erect, crowded, 4 to 6 inches long; pedicells bracted, 
_~ Jonger than the yellowish chartaceous sen — orbicular 2 lines long; 
: corolla scarlet 9 to 10 lines long; filam a at bas e slightly cohering with 
: * one another, and with the base of the corolla, villous below and with a 
small horizon tal process, which forms an arch over the ovary. Placentae 
in. ae Ovary lateral, 3, bearing each 6 ascending oe ovula, at the inner 
ha. Where they appear to touch one another without being actually 
F Daied E that stage of the growth. Soon after ‘hae probably adhere in 
: the canta to each other, and towards the ripening of the capsule detach 
ie or from the valves, presenting a free central ite, get spongy 
4 Caps ; 
: gument jailer in a wing, itty - coniate, 3s the upper end, and~ |. 
finally resolves itself into a coma of silky fibres. If my view of the ovary 
and fruit of this plant is correct, the ovary is 1- celled, with 3 lateral 
a that of a true Fouguiera, the ripe capsule is L-celled, with one ~ 
entral placenta—that of Bronnia, and the unripe fruit, must be 3-celled? 
_“ Fouquiera Sang EgTOnA readily from cuts, and is ae about Chihua- 
a Tina, for ?.. and 
if 1” Wislizenia, n. leas 4; petala 4 oblonga, breviter unguiculata; 
y ae inserta ; faa ta filiformia longe exserta, aesti- 
~~ -Watione inflexa; ovarium longe icieesah, globosedidymum, biloculare, 
.~ Toculis 2- -ovulatis; stylus. subulatus, elongatus, stigma globosum. Ca 
Silieulaeformis, didyma tubereulata ce okay in pedicellum filiformem 
refracta, bilocularis is, Baa pleru r abortum 1-spermis, valvae 
4. urceolat¢ a dissepi pertuso solutig, pe includentibys ; semen ‘On- 
A glabrous new Mexican annual, muvh branched, of the habit of Cleo- 
peat nifrne, pete S hettindouse iculae superae Incumbentesy—<,_ 
‘ mella, with ternate leaves, distinct la injate-fimbriate stipules, and bracted } 
i: reflexed , oe 
at -last at eg racemes, small yellow flowers; fruit stipe with 
i snoe. spinous) style, and ag small dissepiment persistent 
valves 
ose crossing of the Rio Grande, near El 
ae ere | and Ae i oma. 
P talvee am e 
