StlGEEGATSS OF EfiTTS. 141 



S. LASldcAEPA. Branches pubescent the first season, not 

 wholly glabrous until the third : foliage bright green above, 

 paler beneath, prominently veiny and sparsely pubescent on both 

 faces: terminal leaflet li to II inches long, cuneate-obovate, 

 obtuse, coarsely crenate from below the middle, slightly 3-lobed 

 near the summit ; laterals more than half as large, less cuneate 

 and mostly only 3-crenate at the summit : fruits large, glomerate 

 in a large thyrsus, densely soft-hirsute. 



Rocky hills of Osborne Co., Kansas, 9 June, 1894, C. L. Shear, 

 n. 104 as in IT. S. Herb. ; no other known species has a fruit so 

 very hairy. 



S. QUiJECiFOLiA. Evidently dwarf, the short dark brown 

 branches tortuous and knotted, twigs of the season puberulent : 

 foliage small, of the texture, color and indentation of leaflets of 

 white oak ; terminal leaflet I to li inches long, obovate-cunei- 

 form, 3-lobed above the middle, the rounded lobes entire, or 

 oftener crenate, all lobes and teeth very obtuse ; laterals more 

 than half as large, simply 3 to 5 -crenate, upper face of all 

 scabrous-puncticulate, beneath obscurely pubescent, the veins 

 elevated : fruit hirsute. 



Canons in Seward Co., southwestern Kansas, 29 Aug., 1897, 

 A. S. Hitchcock, n. 1106 as in U. S. Herb.; also at Syracuse, 

 Kansas, C. H. Thompson, 1893. 



S. TKIDOPHTLLOIDBS. Habit of the last but the dark-colored 

 branches puberulent for two or three seasons, the growing twigs 

 densely, and foliage sparsely, pubescent : terminal leaflet i to li 

 inches long, cuneate-obovate, acutely 5 to 7-lobed or toothed 

 above the middle ; laterals only oae-third smaller and quite 

 similar, all subcoriaceous, bright green and minutely recticulate 

 above, lighter and venulose beneath : fruit very hirsute. 



Stillwater, Oklahoma, F. A. Waugh, in U. S. Herb. ; no date 

 given. 



S. COGNATA. Allied to 6'. quercifolia, but larger thinner 

 foliage of different figure and that less uniform, some with all 

 three leaflets cuneate-obovate and quite entire, the more usual 

 terminal leaflet 1 to li inches long, obovate-cuneiform, or more 

 commonly cuneate-obovate, angularly and rather coarsely about 



