184 SAFFORD: DESMOPSIS, A NEW GENUS 
the genus Unonopsis, based chiefly upon plants which had been 
previously included in Trigyneia, Fries himself realized that the 
genus would probably have to be subdi- 
vided or even resolved into distinct ge- 
nera.* This natural division must be 
made, retaining for the genus Unonopsis 
the typical Unonopsis angustifolia (Benth.) 
Fries, together with U. Perottetii (A.DC.) 
Fries, and U. rufescens (Baill.) Fries, with 
Fic. 1. Pistils, fruit Clusters of small globose pisiform long- 
and seed of Desmos. a, Pis- pedicelled flowers, usually growing from 
tilof Desmos cochinchinensis the axils of fallen leaves, on the old wood. 
LO vie as Quite distinct from these in the form of 
and glabrous style; b, pistil lowers and the number and arrangement 
of Desmos chinensis Lour. of the ovules are the two species Unona 
Winona deste YEON): end. panamensis and Unona bibracteata men- 
fruit and seed of the same. 
a and b enlarged, ¢ and q tioned above, and I here propose for them 
natural size. the generic name Desmopsis, which is sug- 
gested by their resemblance to the genus 
Desmos of the Old World. To Desmopsis must also be referred 
Trigyneia Galeottiana Baill. and an undescribed species re- 
cently collected by Mr. William R. Maxon and Professor Henry. 
Pittier in the Republic of Panama. 
DESMOPSIS Safford, gen. nov. 
Peduncles opposite the leaves or terminal, bearing at the 
extremity one or two broadly ovate or suborbicular cordate leaf- 
like bracts, and one or two (rarely three) long slender curved 
pedicels. Calyx segments three, valvate, broadly ovate ao 
angular. Petals six, equal or nearly so, lanceolate to linear- 
oblong, continuing to elongate after anthesis, valvate, in two 
series, ascending, sometimes incurved at the apex. Stamens 
numerous, short, cuneate, with the connective broadly expanded 
into a concave disc above the two pollen sacs. Torus convex Of 
subcylindrical, pilose between the stamens and the carpels. Car- 
pels seven to nineteen. Ovaries pilose. Ovules two to six, tw0o- 
seriate, parietal, forming a single column. Style depressed-sp ek 
roid, densely clothed with short hairs. Fruit a cluster of stipitate 
* Beitrage zur Kenntnis der stid-amerikanischen Anonaceen, Kongl. Svenska — 
Vetensk Akad. Handi. 31: 26. T900. oe 
