. Essentials of botany. Botany; Botany. ELM 63 serrate, 3-4 in. long. Flowers in close clusters with very short pedi- cels. Fruit obovate-elliptical, with a fissure extending almost to the seed, nearly smooth and not ciliate. Considerably planted as a, shade tree and rarely escaped from cultivation. Very variable, one variety with thick ridges of cork on the twigs. 3. U. americana L. White Elm. A large tree with gray bark, drooping branches, and smooth or slightly downy twigs. Leaves oval or obovate, abruptly taper-pointed at the apex, obtuse and oblique at the base, slightly rough abo


. Essentials of botany. Botany; Botany. ELM 63 serrate, 3-4 in. long. Flowers in close clusters with very short pedi- cels. Fruit obovate-elliptical, with a fissure extending almost to the seed, nearly smooth and not ciliate. Considerably planted as a, shade tree and rarely escaped from cultivation. Very variable, one variety with thick ridges of cork on the twigs. 3. U. americana L. White Elm. A large tree with gray bark, drooping branches, and smooth or slightly downy twigs. Leaves oval or obovate, abruptly taper-pointed at the apex, obtuse and oblique at the base, slightly rough above, soft-downy or soon smooth beneath. Flowers in close fascicles; pedicels slender, smooth. Fruit oval or obovate, with "2 sharp teeth bending toward each other at the apex;. Fig. 12. Ulmus campestris A, a flowering twig; B, a flower; C, longitudinal section of a flower; D, a, fruit. (^, Z), natural size; iJ, C, enlarged.) (After Wossidlo) wing reticulate-veined, downy on the margin. In moist, rich soil. A widely planted ornamental tree; wood strong but warping badly, and not diu-able when exposed.* 4. U. racemosa Thomas. Cork Elm, Rock Elm. A large tree 80- 100 ft. high, with the young twigs somewhat downy; the branches often with ridges of cork. Leaves much as in U. americana, but smaller and less sharply serrate. Flowers racemed, on thread-like pedicels. Fruit oval, downy on the surface and densely ciliate. In rich soil, especially along river banks. A highly valuable timber tree. 5. U. alata Michx. Winged Elm. A small tree with branches corky-winged. Leaves small, ovate-lanceolate, acute, sharply serrate^ base nearly equal-sided, rough above, downy beneath, nearly Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bergen, Joseph Y. (Joseph Young), 1851-1917. Boston, Ginn


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbotany, bookyear1908