URTICACE^E AMENTACEiE. 
269 
Lindl. — Woods and hedges ; (i. near Ludlow. Lindl. y. West 
Hatch, Essex. Mr. E. Forster. T. III. E. 
6. U. stricta (Lindl.) ; " 1. obovate cuspidate cuneate at the 
base evenly and nearly doubly crenate-serrate strongly veined 
coriaceous very smooth and shining above smooth beneath with 
hairy axils, branches bright brown smooth rigid erect very com- 
pact, fr — /3. parvifolia ; 1. much smaller less oblique at 
the base finely and regularly crenate acuminate rather than cus- 
pidate." Lindl. — Devon and Cornwall. T. Cornish Elm. E. 
7. U. moniana (Sm.) ; "1. obovate cuspidate doubly and coarsely 
serrate cuneate and nearly equal at the base always exceedingly 
scabrous above evenly downy beneath, branches not corky cine- 
reous smooth, fr. rhomboid-oblong scarcely cloven naked." Lindl. 
— E. B. 1887. — Height 50 — GO feet. Spreading. L. very large. 
—Woods and hedges. T. III. IV. Wych Elm. 
Order LXXy. AMENTACEZE. 
Fl. monoecious or dioecious, rarely perfect. Barren fl. capitate 
or in catkins ; sometimes with a membranous perianth. Fertile 
fl. clustered, solitary, or in catkins. Ovary usually simple. Stigmas 
1 or more. Fruit as many as the ovaries, bony or membranaceous. 
Albumen usually wanting. Embryo straight or curved, plain. 
Radicle mostly superior. — Young leaves with stipules. 
Tribe I. SALICINE^E. Fl. all in catkins. Fr. naked, 2-valved, 
1 -celled, many-seeded. Seeds erect, comose. 
1. Salix. Catkins consisting of imbricated scales. Stam. 
1 — 5. Fr. a 1-celled follicle with 1 — 2 glands at its base. 
Perianth 0. 
2. Populus. Catkins with lacerated scales. Stam. 8 — 30, 
from a little oblique cupshaped perianth. Fr. almost 2-celled, 
with a cupshaped perigone. 
Tr. II. MYRICEjE. Fl. all in catkins. Fr. drupaceous, sur- 
rounded by the scales of the ovary become fleshy and adhe- 
rent. 
3. Myrica. Catkins with concave scales. Stam. 4 — 8. Fr. 
a 1-celled 1 -seeded drupe. Perianth 0. 
Tr. III. BETULINEJE. Fl. all in catkins. Fr. naked, inde- 
hiscent, membranous, 2-celled with solitary ovules. Seeds 
pendulous, not comose. 
4. Bf.tula. Scales of the barren catkins ternate, the middle 
one bearing the stamens. Perianth 0. Scales of the fertile 
catkin 3-lobed, 3-flowered, membranous, deciduous. Styles 
2. Ovary compressed. Fr. with a membranous margin, 
1-seeded. 
