ULMACEAE • MORACEAE 269 



ULMUS — continued 



seed close to notch of wing. Cornwall, Devon, Somerset, Brittany. 

 (Fig. 105 K.) 



Variety Wheatleyi. Guernsey or Jersey Elm. Narrow tree with stifFer 

 and more erect branches. Fruit like U. nitens. 



(b) Ls. rough above 



U. americana. American or White Elm. 120. March. D. A wide-spreading 

 tree with ashy-grey bark. Ls. ov., obov., 6. Fruit ov., obov., ^, fringed 

 with hairs. North America. (Fig. 105 h.) 



U. campestris. English Elm. 150. Februar^'-March. D. Ls. 3-|. Fls. reddish. 

 Fruit I, seed close to notch of wing. South England. (Fig. 105 j.) 

 Variety Louis Van Houttei. Ls. yellow. 

 Variety variegata. Ls. variegated with white. 



Variety viminalis. Ls. 2, long-pointed. A slender narrow-headed tree 

 with drooping branchlets. 



U. major. Dutch Elm. 120. February-March. D. Branches often drooping. 

 Ls. ov., 5, nearly smooth above. Fruit i, seed close to notch. Natural 

 hybrid. 



U. minor. East Anglian or Lock Elm. 90. February-March. D. Ls. ov., 2|. 

 Fruit \, seed close to notch. East and Central England, and Hampshire. 

 (Fig. 105 L.) 



U. montana{U. glabra). V^yc]\^\vs\. 125. February-March. D, A wide- 

 spreading and rather open tree. Ls. ov., obov., 7. Fruit I , seed in centre 

 of wing. North Europe (including Britain). (Fig. 105 n.) 



U. vegeta. Huntingdon Elm, Chichester Elm. 100, March. D. Ls. 6. 

 Fruit I, seed nearly in centre of wing. Natural hybrid. (Fig. 105 m.) 



Zelkova crenata. 100. April-May. D. Bark smooth. Trunk short, dividing 

 into large number of erect branches. Ls. alternate, ov., 3, rounded or heart-shaped 

 base, coarsely and more or less evenly toothed, scattered hairs above. Fruit I, not 

 winged. Caucasus. (Fig. 106 A.) 



Family 92. MORACEAE. P4, A4, Gi 



Stems with milky juice. Ls. alternate, stipulate. Fruit fleshy. 



BROUSSONETIA. Paper Mulberry. Ls. ov., 8, toothed, long-pointed, 3-5- 

 nerved and rounded at base, often lobed. Fls. |, white, unisexual, in clusters or 

 catkins. Fruits in a rounded head, i across. 



B. Kazinokii. 15. May. D. Ls. with few hairs, stalk less than i. Fls. in 



clusters. Japan. 

 B. papyrifera. 30. May. D. Ls. woolly below, stalk more than i. Fls. in long 

 drooping catkins. China, Japan, South Sea Islands. (Fig. 28 E.) 



CuDRANiA (Vanieria, Maclura) tricuspidata (C. triloba). Silkworm Thorn. 

 20. July. D. Branches thorny, hairless. Ls. ov., 4, entire or shallowly 3-lobed 

 near apex, rounded at base, dark green above, slightly downy below. Fls. green, 

 crowded into little balls in 1. -axils, sexes on different trees. Fruit i, red, egg-shaped, 

 hard and shiny. China. (Fig. 127 m.) 



