99 [ 26] 
Mexico—the pest naturalist, it is believed, who explored the regions be- 
tween Santa Fe, Chihu ahua, and Saltillo) Wislizenia! f17 "From Oxyst 
lis it is prineipaily distinguished by its long stipitate ovary and capsule, 
- which latter is reflexed, and by ve elongated racemes; it may, however, 
have to be united with that genu 
n the mountains about El Palo: another of those cylindraceous Opun- 
fiae was found, but much thinner and more slender than both species, 
mentioned previously.’ ‘T'o judge from an imperfect descri ‘gas it must 
nearly related to thé Mexican O. virgata, Hort. Vind. have given it 
to 4 lines wide; panicles from the upper fascicles of leaves, near the top, 
one or several, erect, crowded, 4 to 6 inches long; pedicells bracted, - 
longer than the yellowish chartaceous calyx; sepals orbicular 2 lines long: 
corolla scarlet 9 to 10 lines long; filaments at base slightly cohering with 
ene another, and with the base of the corolla, villous een wand with a 
small horizontal process, which forms an arch over the ovary... Placentae 
in the,ovary lateral, 3, bearing each 6 ascending acute ovula, at the inner 
margin, where they appear to touch one another without being actually 
united at that stage of the growth. Soon after they probably adhere in 
the centre to each other, and ‘ones the ripening of the capsule detach 
themselves from the valves, presenting a free central. trian 
_placenta, with about 6 (or by abortion less) seeds. Capsule coriaceous 
oval, acutish, light brown, about 6 lines long. Seeds compressed, inte- 
gument expanded in a wing, which is cordate at the upper end, and 
finally resolves. itcell i into a coma of silky fibres. If my view of the ovary 
and. fruit of this brant is correct, the ovary is 1-celled, with - teral 
placentae—that of a true Fou ouguiera, the ripe capsule i s 1-celled, with one 
central ppesnin<-thes of Lronnia, and the unripe finit, must. be 3-celled! 
Fo ouquiera splendens SOW readily from cuts, and is used about Chihua- 
hua for hedges and fen 
17 Wislizenia, n. gen., der 4; petala 4 oblonga, breviter unguiculata ; 
Stamina 6 toro cylindrico inserta; filamenta filifermia longe exserta, aesti- 
vatione inflexa; ovarium longe stipitatam, globosedidymum, biloculare, 
loculis 2 ovalatis; stylus subulatus, elongatus, stigma globosum. Capsula 
Siliculaeformi idyma tuberculata cum stipite in pedicellum filiformem 
refracta, bilecaisi, calls plerumque per abortum 1-spermis,, valvae 
urceolate a disse eplmento pertuso a semen includentibus; semen con- 
duplicato-reniforme, laeve; cotyledones radiculae superae incumbentes 
A glabrous new Beret annual, much branched, of the habit of if Cleo. 
mella, with ternate lea s, distinct laciniate-fimbriate stipules, and bracted 
at last elongated Pees, small yellow flower fruit reflexed, stipe with 
He eanally tong kapt sna) style, and the small dissepiment persistent 
falling e val 
a reindite. My ge On the upper crossing of the Rio Grande, near El 
Paso; flowers and fruit in August. An interesting and quite anomalous 
plant, on account of its fruit with an almost complete dssepimet, and of 
its stipules and mee Meee valves bi the ig tee ee rat ng 
from. the placentae, oug retal 
ar Sprinitig & db abit discopiont, whieh, in the eniloely nee an, j 
dry state, finally becomes perforated in the centre 
