DICOTYLEDONOUS PLANTS 



59 



gray or brown bark and a low, spreading top. Leaves leathery, 

 evergreen, oblong or oblanceolate, often somewhat 3-lobed on young 

 trees, margin rolled under, dark green and shining above, pale 

 below ; petioles short, stout. Fruit often in short racemes, cup top- 

 shaped, scales closely appressed, hoary, peduncles 41 in. long ; acorn 

 from subglobose to oblong, the longer form occurring on the younger 

 trees. On low ground near the coast ; wood very hard and durable ; 

 valued for shipbuilding.* 



19. ULMACEJE. ELM FAMILY. 



Trees or shrubs with watery juice, alternate, simple, petio- 

 late, serrate, stipulate leaves, which are usually 2-ranked ; 

 and small, perfect, or somewhat monoecious, apetalous flowers. 

 Calyx of 3-9 sepals which are distinct or partly united, 

 stamens as many as the sepals and 

 opposite them. Ovary 1 2 -celled, 

 styles 2, spreading. Fruit a key, 

 nut, or stone fruit.* 



D 



FIG. 9. Ulmus campestris. 

 A, a flowering twig ; B, a flower ; C, longitudinal section of a flower ; Z>, a fruit. 



I. ULMUS, L. 



Trees with straight-veined, unsymmetrical, doubly serrate 

 leaves ; stipules early deciduous. Flowers perfect, calyx 

 bell-shaped, 4-9-cleft. Stamens slender, protruding. Ovary 

 compressed, styles 2, spreading. Fruit membranaceous, flat, 

 winged on the edge.* 



