DruynmondiancB. 



N, O* Leguminosfle* 



/ 



TAB. CCLXXXV. 



Trifolium maceocalyx 



Erecta glabra, foliolis obcordatis serratis, stipuUs lanceolatis, 

 capitulis subglobosis, calyce amplo ad basin bilabiato reticu- 

 lato, labio inferiore minimo lineari-subulato, superiore pro- 

 funde 4-fido subdentato, vexillo vix calycem superante ovato- 

 rotundato sessili apice denticulato, alis bifidis grosse serratis, 

 carina minima inclusa, leguminibus oblongis 7-9-spermis. 

 Hab. Texas: San Felippe. Drummond. Bejar and the Rio 

 Trinidad. Berlandier. 



One of the most distinctly marked species of this very e?£ten- 

 sive genus. I am unacquainted with any that at all approaches 

 it in the structure of its flower. The calyx is peculiarly 

 large, deeply and very unequally 2-lipped : the lower lip minute 

 entire, the upper 4-fid, the 



superior segments 



shorter and 



broader, the whole distinctly reticulated, and more or less hairy, 

 as are the pedicels. The petals are as singular in structure as 

 the calyx. The vexillum is sessile, scariose, brown when dry, 

 scarcely longer than the calyx, broadly ovate, the sides deflexed 

 so as to include, almost entirely, the alae, as they do completely 

 the small carina. Alee with the lamina bifid, the lobes acute 

 and serrated. Legume oblong, ciliated above, including several 

 seeds. 



I^'iff. 1. Flower. /. 2. Front view of the caljx. /. 3. Corolla. 

 / 4. Vexillum. / 5. Alae. /. 6. Carina. /. 7. Stamens. /. 8. 

 Pistil. / 9. Legumen : — magnified. 



