ROSACEOUS GBKEEA. 339 



tricts of the South, there occur aeveral excellent subspecies to be 

 distinguished. Those proposed below are western. 



B. HETERODOXA. Stems and slender flowering branches deep 

 red-purple, the latter sparsely hispid, otherwise glabrous, but 

 pedicels with also a short pubescence : leaves yery diverse, the 

 lowest 3-foliolate, those next them simple, deeply 3 -parted, the 

 uppermost slightly lobed to merely ovate ; the margins of all 

 incise-serrate, all deep-green and plicate- rugose above, white 

 tomentose beneath : calyx hispid and glandular, segments 

 triangular, acute. 



Woods at Clarke, Indiana, 39 May, 1897, L. M. Umbach, 

 U. S. Herb. 



B. AMPLissiMA. Stem and branches vivid green, sparsely both 

 hispid and with short fine gland-tipped hairs : foliage pinnately 

 3-foliolate, thin, very ample, odd leaflet ovate, 3 J inches long, 2i 

 inches wide, coarsely and doubly crenate, all green on both faces 

 when mature, only the youngest hoary beneath : pedicels hispid 

 with many short and few long and spinescent hairs all gland- 

 tipped : calyx sparsely aculeate and pubescent, its segments ovate, 

 acuminate. 



Warren's Woods, Brookings Co., S. D., 17 June, 1893, Thorn- 

 ber, U. S. Herb. 



B. ELEGAUTULA. Stem and branches nearly glabrous, a few 

 short scattered hispid hairs seen under a lens : leaves very thin 

 and delicate, 3-foliolate, on slender petioles sparsely short-aculeo- 

 late and finely glandular-pubescent ; odd leaflet ovate, acumi- 

 nate, 3 inches long, all regularly and most elegantly double- 

 serrate, the teeth all very acute, lower face whitish with very fine 

 tomentum: pedicels glandular-hispid; calyx sparsely aculeolate, 

 its segments ovate, but with greatly elongated acumination. 



Pokegama Lake, Minnesota, June, 1891, J. H. Sandberg, n. 

 314, as in U. S. Herb. 



B. Itascica. Stem and branches almost completely devoid 

 of both bristles and pubescence, the whole, even to the pedicels, 

 appearing glabrous : odd leaflet 3 inches long, rhombic-ovate, 

 all three simply and somewhat crenately serrate, of thin textur e 



