. Bulletin (Pennsylvania Department of Forests and Waters), no. 33-35. Forests and forestry. i)(;. Fij?iire 29 WiiiTK Ash. 1. Twig. 2. Cluster of typical seeds. 3. Three stH'ds showing %Aing variations. 4. Leaves with under and upiK'r surfaces exiwsed 97 ASHES,—FRAXmUS, (Tourn.) L. Timber trees with oddly pinnate-compound opposite ^Mowers small, in dense panicles or racemes, usually dioe- cious • 2-part, without petals; calyx even absent sometimes Buds have 3-4 pairs of scales. Fruit a dry, winged Require fertile, moist to wet soils for good growth. 241. White Ash,—Fraxinus americana, L. Twigs
. Bulletin (Pennsylvania Department of Forests and Waters), no. 33-35. Forests and forestry. i)(;. Fij?iire 29 WiiiTK Ash. 1. Twig. 2. Cluster of typical seeds. 3. Three stH'ds showing %Aing variations. 4. Leaves with under and upiK'r surfaces exiwsed 97 ASHES,—FRAXmUS, (Tourn.) L. Timber trees with oddly pinnate-compound opposite ^Mowers small, in dense panicles or racemes, usually dioe- cious • 2-part, without petals; calyx even absent sometimes Buds have 3-4 pairs of scales. Fruit a dry, winged Require fertile, moist to wet soils for good growth. 241. White Ash,—Fraxinus americana, L. Twigs stout, usually smooth, gray-brown lustrous with few large pale lenticels. *, , ,^ Leaflets entire or ohscurehj toothed, silvery beneath, have short petioles; leaf-scars semi-oircular, notched above Buds blunt, ovate, dark brown. Bark ridged with dia- mond-shape fissures. , v> * oHr,^ iw Keys 1" long; seed terete, overlapped but slightly by ^Best tree of the genus; makes straight, stiff growth. (Fig. 29) 242. Red Ash,—Fraxinus pennsylvanica. Marsh. Differs from white ash chiefly in having short-hairy twigs and leaf-stalks, but also is a smaller tree in all respects; leaflets narrower, often nearly sessile; seeds thinner with wings extending well down their sides; bark ridges wider and more scaly. 243. Green Ash,—Fraxinus lanceolata, Borck. Is commonly considered a variety of red ash but differs in being smooth; having sharp-serrate leaflets quite green beneath; terminal buds acute; keys narrower and very acut^e. Twigs often curve or droop because of rapid growtn. Leaf-scars lunate. , .x , , Occurs on stream-banks and fertile bottomlands. 244. Black Ash,—Fraxinus ni^ra. Marsh. Turigs like tvhite ash but paler in color and with more obvious lenticels. Buds black; terminal acute. Leaflets sessile. Bark irregular corky-ridged or scaly; becomes mealy in appearance when rubbed. Tree of cool, moist to swampy Please note that these images are extracted fr
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