242 
CONTRIBUTIONS TO BOTANY. 
camosa,piso minore, 4-pyrena, pyrenibus generis. — InAn- 
tillis: i\ s. in herb, Mus. Cuba, Faralloma Hermitage 
(Wright, 1365 in parte). 
This is another distinct species, the last of the three included 
by Dr. Grisebach under the specific name of virgata — all as 
dissimilar as can be conceived to Swartz’s plant. It forms 
a low bush, with gnarled rough branches. The axils of the 
short young branchlets, after the fall of the very deciduous 
leaves, are spinescent, and so very close together as to give 
them a muricated appearance. The leaves are 5-6 lines long, 
4 line broad, the margins being so greatly revolute as almost 
to conceal the under surface, the petiole being ^ line long 5 
the calyx is line long, coriaceous, cleft halfway into five 
rather obtuse lobes, and supports a red drupe 2 lines in 
diameter. 
Crematomia. 
I have already alluded to this group of plants, which I have 
separated from Ehretia : it forms a series distinguished by 
very salient characters, the tyjie of which is the Bourreria 
exsucca of Jacquin, a plant hitherto very indistinctly described 
and confoimded with others. From a fiower of the original 
typical plant, contidbuted by Jacquin himself, from herbarium 
specimens, and assisted by an analytical di-awing of the struc- 
tm-e of the fruit taken from a living plant, I have been en- 
abled to complete the characters of the genus here proposed 
mider the title of Crematomia, a name derived from KpefMaco, 
suspendo, and rofir), sectio, on account of its four carpellary 
achenia, suspended by stiff threads from the summits of a 
divided free axile column, somewhat after the manner of the 
suspended carpels in Gouania, many Cruciferce, Umbelliferce, 
and Geraniaceoi. The calyx is constructed as in Bourreria, 
only that its valvate segments adhere more firmly together, 
often splitting iiTCgularly, by the swelling of the corolla and 
fruit, into two or three unequal divisions. The corolla is 
tubular and fleshy, with a border of five orbicular segments, 
shortly unguiculated and cordately amdculated at their base ; 
the stamens are often pilose at their base, with anthers like 
those of Bourreria ; so also is the style, only that it is always 
more deeply cleft for a distance never less than one-fourth of 
its length. The ovary is subconical, seated on a fleshy disk, 
and has a placentation similar to that already described in 
Rliabdia, Cortesia, Ehretia, and Bourreria. The drupaceous 
fruit has a thick coriaceous pericarp, that falls away, leaving 
a quadrately obovate cremocarp, which ultimately splits along 
