511 



Racemes and lower surface of the leaves closely or softly pubescent 



Roots tuberous ; stems pubescent ; leaflets not glandular-dotted beneath. 

 Small or simple, with elongated terminal raceme, leaflets 3-5. 



3. A. pumila. 

 Larger, branched, leaflets 5-1 1. 4. A. mollis. 



Roots not tuberous ; stems hirsute ; leaflets glandular-dotted beneath. 



Leaflets 5-9, oblong or rhomboid; fruit large, the bristles connivent, 



5. A. Brittoniana. 

 Leaflets 9-23, lanceolate ; fruit small, the bristles radiate. 



6. A. parvijlora. 

 Leaflets incised with few salient teeth. 7. A. incisa. 



I. Agkimonia hirsuta (Muhl.). 



Commonly 3^-4° tall (2°-6°), simple, to loosely wide 

 branched above, minutely glandulose and somewhat viscid on 

 the branches, aromatic. Stem usually zig-zag from leaf to 

 leaf, villous-hirsute with slender spreading hairs. Leaves bright 

 green, large, 4^-12' long, 3'-8' wide, the villous leaf-stalks usually 

 with short petiolar portion. Leaflets large, rather thin, commonly 

 three pairs (2-4 pairs), elliptic, broadly oblong or obovate-oblong, 

 acute, sessile or subsessile, often with rounded or subcordate base, 

 the odd leaflet short-stalked or subsessile with narrowed base, 

 coarsely serrate with acute or somewhat rounded mucronulate teeth, 

 the margins ciliate-fringed, upper surface glabrous or with short, 

 scattered, appressed hairs, lower surface minutely, often sparsely, 

 pulverulent-glandulose and with scattered hairs on the larger 

 nerves, rarely subpubescent. A frequent size of the leaflets is 

 abo ut 2 1/^' X I YaJ y an extremesize 5' X 3'. Interposed leaflets nor- 

 mally three pairs in the distal interspace, fewer or smaller in the 

 lower interspaces, the middle pair much the largest, ovate or ob- 

 ovate from a broad base, acutely lobed, often subopposite, in weak 

 plants sometimes much reduced, rarely to a small entire pair. 

 Stipules normally very large, sometimes over an inch broad, the 

 pairs cordate-amplexicaule, often overlapping around the stem, 

 openly cut-serrate or dentate-lobed in the rounded outer margin 

 which is abruptly contracted into the ovate-acuminate incurved 

 terminal lobe. In reduced plants the stipules are smaller and nar- 

 rower, the lowermost sometimes entire. Branches openly com- 

 pound, widely spreading or loosely ascending, bearing spread- 

 ing racemes. Racemes commonly under a foot in length (4'- 

 16'), often inclined in fruit, minutely pulverulent-glandular and 

 thinly spreading-villose, somewhat closely many-flowered or 

 the lower flowers distant on slender ascending pedicels 2"-^" 

 long, the uppermost sometimes subverticillate clustered. Bracts 

 relatively large, the narrow lobes ciliate-fringed, often exceed- 

 ing the flowers at anthesis ; bracteoles lanceolate-attenuate, nar- 



