_Hicoria glabra_ var. _villosa_ Sarg. _Hicoria villosa_ Ashe. _Carya villosa_ Schn. _Carya glabra_ var. _villosa_ Robins. [Illustration: Fig. 190] Leaves 6′—10′ long, with slender petioles and rachis pubescent with fascicled hairs early in the season, generally becoming glabrous, and 5—7, usually 7, lanceolate to oblanceolate finely serrate leaflets long-pointed and acuminate at apex, cuneate or rounded and often unsymmetrical at base, sessile or the terminal leaflet sometimes short-stalked, dark green and glabrous above, pale and pubescent below, the lower side of the midrib often covered with fascicled hairs, the upper leaflets 3′—4′ long and 1′—1½′ wide, and twice as long as those of the lowest pair. Flowers: staminate in aments pubescent with fascicled hairs, 4′—8′ long, pubescent, their bract acuminate, not much longer than the rounded calyx-lobes; pistillate in 1 or 2-flowered spikes, rusty pubescent, slightly angled. Fruit obovoid to ellipsoidal, rounded at apex, cuneate and often abruptly narrowed into a stipitate base, rusty pubescent and covered with scattered yellow scales, about 1′ long and ¾′ in diameter, with a husk 1/12′ in thickness, splitting tardily to the base by 1 or 2 sutures or indehiscent; nut ovoid, rounded at base, pointed at apex, only slightly angled, faintly tinged with red, with a shell rarely more than 1/12′ in thickness; seed small and sweet. A tree 30°—40° high, with a trunk 12′—18′ in diameter, stout often contorted branches and slender branchlets covered at first with rusty pubescence mixed with fascicled hairs and pubescent or glabrous during their first winter. Winter-buds ovoid, acute, covered with rusty pubescence mixed with yellow scales, often furnished near the apex with tufts of white hairs, the terminal ¼′ long and about twice as large as the compressed axillary buds. Distribution. Dry rocky hills, Allenton, Saint Louis County, Missouri. Distinct from other forms of _Carya Buckleyi_ in the often indehiscent fruit and more numerous and longer fascicled hairs, and possibly better considered a species. IX. BETULACEÆ.