78. AMENTIFEEJS. 321 



tube of periantli and opposite to its lobes. Ovary free, 1 — 2- 

 celled ; ovules solitary. Styles 2. Fr. not bursting. With 

 deciduous stipules. 



1. Ulmus. Perianth bellshaped, 4 — 5-cleft, persistent. Stam. 

 5. Styles 2. Caps., compressed, wings all round. — PI. 

 before the leaves, clustered ; ped. short. 



1. Ul'mfs Linn. Elm. 



1. U. campes'tris (Sm.) ; 1. shortly acuminate more or less 

 doubly serrate, ped. short, fl. 4 — 5-fid, lobes ciliate, fr. obovate 

 or oblong notched, seed-oamtij chiefly above the middle of fr. and 

 near the notch. — U. campestris (L.) includes this species and 

 Sp. 2. — a. U. iuberosa (Sm.); 1. asperous above pubescent be- 

 neath. E. B. 1888, 2181.— 3. U. glabra (Sm.) ; 1. rather cori- 

 aceous shining nearly or quite smooth above glabrous except 

 in the axils of the veins beneath, young 1. stip. and fr. with 

 subsessile glands. E. B. 2248. U. stricta (Liudl.) which has 

 rigid erect close branches is a form of this variety. — a. Through- 

 out England. (S. South of England and Ireland. T. III.— V. 

 Common Elm. E. I. 



2. U. montdna (With.) ; 1. much acuminate doubly serrate 

 asperous above rather downy beneath, ped. short, fi. 5 — 7-fid, 

 lobes ciliate, fr. oblong or roundish notched, seed-cavity chiefly 

 below the middle offr. and distant from the notch. — E. B. 1887. 

 U. major Sm.? — ^Branches large spreading. L. broad. Fr. 

 Hoplike.— Woods and hedges. T. III. IV. WyehElm. E.S.I. 



Order LXXVIII. AMENTIFEEiE. 



Fl. monoecious or dioecious, rarely perfect. Barren fl. of all 

 our plants in catkins; sometimes with a membranous pe- 

 Tianth. Fertile fl. clustered, solitary or in catkins. Ovary with 

 one or several cells. Stigmas 1 or more. Fruit as many as 

 the ovaries, bony or membranous (or drupaceous in Myriad). 

 Albumen usually wanting. Embryo straight or curved, plain. 

 •Radicle mostly superior. — Young leaves with stipules. 



Subord. I. 8ALICINEM. Dioecious. Fl. all in catkins. 

 Fr. naked, 2-valved, 1-ceUed, many-seeded. Seeds erect, 

 hairy. 



1 Salix. Catkins consisting of imbricate entire scales. 

 Stam. i— 5. Fr. a l-celled pod with 1—2 glands at its 

 base. Perianth 0. 



2 PoPULXJS. Catkins with slashed scales. Stam. 4t— 30 



p 5 



