
See 

1901] NORTH AMERICAN TREES 229 
Margins of oak groves in rich moist soil along the banks of 
sloughs near Barrington, Illinois, £. 7. AHid/, May and June 1899; 
fill and Sargent, September 1900. 
Distinguished from the other species in the 7enudfoliae group now recog- 
nized by it more numerous stamens. 
“ Crataegus Columbiana, n. sp.— Leaves oval to obovate, or on 
vigorous shoots often broadly ovate to oblong-oval, usually 
acute, or occasionally rounded at the apex, full and rounded or 
_ gradually narrowed or abruptly cuneate at the base, irregularly 
doubly glandular-serrate, except toward the base, with broad 
spreading teeth; on leading shoots sometimes slightly divided 
above the middle into three or four pairs of short acute lobes; 
when they unfold conspicuously plicate, covered above with long 
soft white hairs and below with a thick coat of snow-white 
tomentum, and at maturity thin but firm in texture, dark green, 
lustrous and scabrate on the upper surface, paler and pubescent or 
tomentose on the lower surface, from 2 to 2% in. long and broad, 
and on leading shoots often from 2 to 4 in. long and broad, with 
slender midribs, few thin primary veins and conspicuous reticulate 
veinlets; petioles stout, tomentose, about % in. long; stipules 
lunate, often apiculate, more or less stipitate, often coarsely glan- 
dular serrate, villose, from Y% to % in. long. Flower 3 in. in 
diameter on_ slender elongated pedicels covered with hoary 
tomentum like the slender branches of the broad lax many- 
flowered compound corymbs; bractsand bractlets oblong-obovate, 
acute or rounded and apiculate at the apex, finely glandular- 
serrate, slightly villose; calyx-tube narrow, obconic, coated with 
thick hoary tomentum, the lobes short, acute, coarsely glandular- 
serrate, tomentose on both surfaces; stamens 20, filament 
slender, elongated; anthers small, dark red; styles 5, sur- 
rounded at the base by long tufts of snow white hairs. Fruit in 
few-fruited spreading tomentose clusters, subglobose, often rather 
longer than broad, full and rounded at the ends, tomentose until 
nearly grown, dark red, marked by numerous large pale dots, 
glabrous at maturity, from 3 to nearly % in. in diameter; 
calyx-tube prominent, with a broad deep cavity, the lobes short, 
