unknown.—An erect glabrous herb, armed with small uncinate prickles alone the
H * V ”. flpetduncles- StiP"ea subulate. Leaves bipinnate; the pinn® 5-6
d ’, the (<raflet;, numerous, oblong, mucronate, distinctly and singularly reticu
lated beneath with a few elevated anastomosing nerves. Peduncles axiharv an
inch and a half long, solitary. Head globose. Flowers white.—“ L Nuttdllii
tTe nnn SaS.’ f ' (‘n Mercier.)” DC.-Tho plant thus described after
n Ume ° [ the Pr°dr°mus,)is indicated nus, or as a section of either Desmanthus or Schrankia. accordino-e itahs etrh a«s a gewhen
known shall warrant. The plant is wholly Unknown to usf and n o S
X " w i t h the descriptmn is to be found either among our s p e c i e s of NuU
tall s Arkansas plants, nor in other collections from the fame region. From the
description of the leaflets, they would seem to resemble those of Schrankia unci-
nata. Our Desmanthus Jamesn is not prickly, and the leaflets not reticulated.
Or d e r ROSACEiE.
2. PRUNUS, p. 406-408.
3. P .g lan du lo sa . On receiving the letter-press of the 6th part of the
leones P la n ta rum w e perceive that Hooker has described this plant under the
Aa mei c r o p h v doub.tless ac^ount of its resemblance to
“ lcr°Poylla, H. B. Sf K., although the genus cannot be determined for
want of the fruit, and it is not improbable that both plants belong to Prunus
Having examined an original specimen of Amygdalus microphylla, we may
much resembles fr H f l° be that 1 « although l
Or d e r LOASACEiE.
2. CEVALLIA, p. 536.
C.sinuata^-Add syn. Hook, ic.pl. t. 052. (Texas, Berlandier.) The
6th part of the leones Plantarum, in which Hooker has figured this species
reached us after the foregoing sheets were printed. Sir William Hooker
adopting the suggestion of Dr. Arnott, is inclined to refer the genus to Thy-
inele®; an opinion which these distinguished botanists will probably reconsider,
since they have recently described Gronovia as a Loasaeeous plant
(SappL bot. Beechey, p . 426), which genus accords with Cevallia in the
tbT eda°aarm I **1 f S1,?gle susPended ovuIe• Hooker, like ourselves, found
described i t X r w i s l 8 ’ ^ LagaSCa 3nd Nutta11 W
Or d e r CUCURBITACEiE.
4 (a). DISCANTHERA.
Flowers monoecious. S t er il e F l. Calyx obsolete. Petals 5, ovate,
United at the base into a flatfish-nearly rotate corolla. Stamens (probably)
2: filaments very short, connate; the anthers forming a flat peltate disk
opening all round the even continuous margin; both the superior and the inferior
surface (within the margin) furnished with a minute ciliate fringe.
Disk and rudiment of the ovary none. F ertile! F l. Calyx produced beyond
the ovary into a filiform tube; the teeth obsolete. Petals nearly as in
697
the sterile flowers. Rudimentary stamens none. Disk none. Ovary 3-celled,
with apparently about 6 erect or ascending ovules. Immature fruit ovoid
(somewhat fleshy ?), gibbous, densely echinate with weak prickles, at length
1- celled? Seeds 3-4 or 6, large, flat.—A slender trailing or climbing herb,
with pedately dissected leaves, and simple tendrils. Flowers (white) very
small; the sterile in filiform often somewhat compound racemes; the fertile
ones solitary in the same axils, on short peduncles.
D. dissecta.
$1 Texas, Drummond .'—Plant nearly glabrous. Stem slender. Leaves
ternately divided ; the divisions attenuated and linear at the base, or pet-tollin
' 6’ the petiolules slightly margined; the terminal division 3-parted: the
lobes irregularly toothed or sinuate; the middle one oblong, conspicuously
mucronate; the lateral ones shorter, and often 2-3-lobed: lateral divisions
2- parted; the segments deeply 2-3-lobed, and sinuate-toothed. Sterile ra-
cemes as long as the leaves; the flowers (scarcely 3 lines in diameter) on
short , pedicels. The column consists of a very short flat filament (of 2
united), bearing a peltate flat disk, which probably is composed of 2 united
anthers, opening by a continuous even' line all around the margin, with no
interruption to mark the points of connexion; neither is the anther in anv
degree tortuous, but the disk, after the pollen is shed, is slightly folded upwards:
the anther is manifestly 2-celled: within the margin, both on the
upper and lower side of the disk, is a circle of minute radiating cilia;, borne
apparently by the margin of a disk which is closely applied to the faces of
the anther. Peduncle of the fertile flowers scarcely as long as the half-
grown fruit. Ovary 3-celled ; the cells probably disappearing during the
growth of the fruit: style and stigmas not observed: ovules erect from near
the base of the cell; the young fruit thickly clothed with long, weak, and
soft smooth pnckles. Seeds apparently large and flat, erect from near the
base of the fruit.—This plant, which we have in Drummond’s Texan collection,
had escaped our notice until after our account of this family was
printed. (Jur specimens are unfortunately somewhat incomplete. The
genus belongs to the same division with Cyclanthera of Schrader (founded on
a Mexican plant), with which it accords in the remarkable structure of the
anthers, and in some other respects; it is also allied to Elaterium. This
last genus appears to need revision, and some of the described species may
be found to agree either with Discanthera or Cyclanthera. The fruit of
Elaterium pubescens is 3-, or perhaps by suppression 2-celled, and the
seeds erect as in the present plant. Does E. ? hastatum, H. B. &■ K which
is said to have minute campanulate-rotate flowers and a 6-seeded fruit
Delong to the same genus with the plant here described ?
Elaterium trifoliatumjLinn, mantiss.) is founded on a description of a plant
it by the charaWctie1rCsh gWiBv e*nd, unlesfsin idt mshi houmld h ebreb aSriiucymo>s anande aurlea tuunsa bleO ltaov tnidne ntify
not describe the leaves as trifoliolate, but as 3-lobed. S yt°n doe9
Or d e r CRASSULACErE.
1- TILLJEA, p. 557.
1. T. minima. We have it also from Douglas’s Californian collection.