81 
MONOGRAPH OF AMPHXCARPA AND AKIN GENERA* 
OF THE GROUP TETRODES. 
G. AMPH1C ARP A Elliot. The Genus 
Glycine of Linneus, a strange medley of species 
without common characters, is now divided in 
many Genera requiring yet discrimination and 
revision. As early as 1804 I had proposed to 
Muhlenberg the Genus Tetrodea for GL mo - 
noica , comosa , subterranea , having a tubular 
4toothed calix, and I indicated this G. in 1808. 
But in 1818 Elliot established with them his G. 
Amphicarpa, which has been generaly received. 
Decandole wrongly spells it amphicarpea . but 
as each of these 3 sp. may be the type of a pe- 
culiar Genus, I shall now revise it and add sev- 
eral sp. 
Amphicarpa Calix tubular sub campanulate, 
base obtuse or gibbose, 4 teeth acute subequal. 
Petals equal oblong keel obtuse, wings Itoothed 
vexillum adpressed or incumbent. St am 9-1. 
Stigma capitate. Pod stipitate, oblong, com- 
pressed acuminate by the style, 3-4 seeds sub- 
reniform. Sometimes the lower flowers soli- 
tary without petals nor stamens , perfect fl . 
racemose and bracteolate , Perennials . 
Lobomon Raf. calix campanulate, base acute, 
unequaly 4toothed. Petals and stamens as 
above, but commonly apetalous flovfers dioical 
or monoical, with 5 minute sessile united an- 
thers. Pod flat semi ovate acute, without style, 
one side strait, 2 seeds lenticular. Annuals 
Flowers axillary , not racemose , no bracts . 
(Name ancient.) 
Geolobus Raf. calix campanulate, 4fid, up- 
per segment notched. Petals unequal, keel and 
wings oblong, vexillum obovate striate notched. 
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