81 



MONOGRAPH OF AMPHlCARPA AND AKIN GENERA. 

 OF THE GROUP TETRODES. 



G. AMPHlCARPA Elliot. ITie Genus 

 Glycine of Linneus, a strange medley of species 

 without comnaon clfiaracters, is now divided in 

 many Genera requiring yet discrimination and 

 revision. As earJy as 1804 I had proposed to 

 Muhlenberg the Genus Tetrodea for GZ. me- 

 noica, comosa, suhterran^a, having a tubular 

 4toothed calix, and I indicated this G. in 1808, 

 But in 1818 Elliot established with them his G. 

 -4wpAica;ya,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. Stam 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 

 iRbove, but commonly apetalous flowers 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. 



