260 On New Genera and Species of Nyctazinacee. 
positis petiolatis; floribus albis vel albidis solitariis (raro geminatis) 
terminalibus vel sabe ernie subsessilibus bracteolis 2 beer 
ulatis parvis subte 
A genus vriniGipalty distinguished from Mirabilis by the svi 
of an involuere; whence the name. From Nyctaginia, with 
which Choisy confounded one species, it abundantly differs in its 
solitary or subsolitary and sessile flowers, destitute of an involu- 
cre, unless the pair of minute subtending bracts be so called, and 
in the included filaments. In this, as in most eb aig heve gen- 
era, a portion of the flowers, especially the earlier ones, are 
cociously fertilized in the bud, while the perigonium is yet small; 
when the latter, being arrested in its development by the growth 
of the fructifying ovary, never expands. 
L. Actetsaytues crasstvoria (sp. nov.) : scabro-puberula ; ; 
caulibus decumbentibus ; foliis crasso-coriaceis ovatis basi rotut- 
datis mucronatis: tubo perigonii limbo ter quaterve longiore; 
fructu ovoideo vix costato.—High prairies of San Felipe Creek, 
irht. 
2. ACLEISANTHES LoNcIFLORa’(sp. bee! ¥: glabra; caulibus basi 
suffruticosis divaricato-ramosissimis aeltaidehoriits summisve 
rhomboideo-lanceolatis acuminatis margine undulatis ; tubo pet: 
gonii prelongo gracili (5-6-pollicari) ; fractu cylindraceo > 
lato.—Valley of the Limpio; and near San Antonio, Texas 
Hoy No. 599.) Stony hills of the Pecos, May. ( Wright, 
No. 1704.) Also collected in Texas by Prof. R en" and by 
Mr. Lindheimer ; and in Northern Mexico by Dr. sh 
Leaves variable in shape, about an inch long. I have seen ittle 
mature fruit, and no precociously fructified flowers. 
3. AcLEIsanTHEs BerianpIEeRt: glabra, diffusa ; foliis cordatis 
reniformibus ovatisve obtusis vel acutis parvis; tubo Bec 
limbo duplo triplove longiore.—Nyctaginia obtusa, C see 
DC. Prodr. 13, p. 429.—Corpus Christi, and on the Rio G io 
Texas. Between the Rio Frio and the Nueces, Texas, Ber 
dier. Near Montgrey and Matamoras, Gregg.—Leaves 4 
to two thirds of an inch in length, not including the slender if 
tiole, variable in shape. Flowers white, tinged with hn 
ading, as in all the species. Fruit unknown |. —Choisy gsc 
the leaves of his Nyctaginia obtusa as “cuneate-oblong, obits: origin 
at both ends ;” but a rude sketch which I made from the 
specimen, in the Candollean herbarium, exhibits them as rou it is 
: €, or somewhat reniform. I doubt not, age i 
the plant here characterized, although other points in t 
ter are more or less at variance with my incomplete spine 
No. 1705 - Wright’s collection, from hiils between the Sa” 
