168 Plante Lindheimeriane. 
which Endlicher happened to examine were pentapetalous, 
which is not the more usual case; and he erroneously states 
the plant to form a large tree, whereas it is commonly a slen- 
der shrub, of five or ten feet in height, or at most a small 
tree. Misled by these discrepancies, and by the differences 
of the two kinds of flowers, and, it would seem from his 
description, happening to possess tetrasepalous as well as 
tetrapetalous flowers (although there are five sepals in all 
my Lindheimerian and other specimens,) Mr. Scheele has 
wrongly introduced a second species, under the name of U. . 
heterophylla. The leaflets vary from five, or even three, on 
the earlier leaves, to seven.” Gen. Jil. l. c.—In seedling 
plants, raised in the Cambridge Botanic Garden, I have 
noticed a lusus of the earliest leaves, in which the leaflets 
are confluent. 
(586.) U. speciosa, Endl. Finer specimens of both sexes ; 
from New Braunfels. 
(587.) Sapinpus mareinatus, Willd.; Torr. & Gray, Fl. 
1. p. 255; Gray, Gen. Ill. 2. t. 180. New Braunfels. June, 
(in flower.) 
RHAMNACEZ. 
364. Zizypnus optusirotia, Gray, Gen. Ill. 2. p. 170. t. 
163. Rhamnus obtusifolius, Hook. in Torr. & Gray, Fl. 1. 
p. 685. Paliurus Texanus, Scheele in Linnea, 21. p. 580. 
Bottom woods of Comale Creek, New Braunfels, &c. ; com- 
mon. A shrub or small tree, with slender shoots and green- 
ish-white bark; several times flowering between March and 
September. No. (588) is the same plant in flower, and in 
ripe fruit, the fruit ripening the season after flowering.! 
1 Another species, gathered by Dr. Gregg between Matamoros and Mapimi, may ” 
be thus characterized : — 
ZiZYPHUS LYCIOIDES (sp.nov.): glabrata; ramis valde spinosis; foliis oblongo- 
‘linearibus parvis integerrimis coriaceis ; pedunculis brevissimis 3 -5-floris; drupa sub- 
globosa monosperma. — The sharp and straight thorns are from one to two inches in 
length: the specimen shows no stipular spines. Leaves halfan inch long, one or two 
lines wide, obtuse. Fruit, of the size of that of the Buckthorn, said by Dr. Gregg to 
be black and edible. 
