77. AMENTIFERS. 287 
fr. oblong or roundish notched seed-cavity chiefly below the mid- 
dle of fr. and distant from the notch.—E. B. 1887.—Branches 
large, spreading. L. broad. Fr. hoplike.—Woods and hedges. 
T. TL. 1V. Wych Elm. 
Order LXXVIT. AMENTIFERZ. 
Fi. moneecious or dicecious, rarely perfect. Barren fl. capitate 
or in catkins ; sometimes with a membranous perianth. Fertile 
fl. clustered, solitary or in catkins. Ovary usually simple. Stigmas 
lor more. Fruit as many as the ovaries, bony or membrana- 
ceous. Albumen usually wanting. Embryo straight or curved, 
plam. Radicle mostly superior.—Young leaves with stipules.— 
For figures of the genera see G. F. G. Monochl. 
Tribe I. SALICINEA. Fl. all m catkins. Fr. naked, 2-valved, 
1-celled, many-seeded. Seeds erect, comose. 
1. Satrx. Catkins consisting of imbricated entire scales. 
Stam. 1—5. Fr. a 1-celled follicle with 1—2 glands at its 
base. Perianth 0. 
2. Popuuus. Catkins with lacerated scales. Stam. 4—30, 
from a little oblique cupshaped perianth. Fr. almost 2-celled, 
with a cupshaped perigone. 
Tr. Il. MYRICEA. Fi. all in catkins. Fr. drupaceous, sur- 
rounded by the scales of the ovary become fleshy and ad- 
herent. 
3, Myrica. Catkins with concave scales. Stam. 4—8. 
Stigmas subulate. Drupe l-celled, 1-seeded. Perianth 0. 
Tr. Il. BETULINEA. Fi. all in catkins. Ovary 2-celled, 
each with 1 ovule. Fr. naked, indehiscent, membranous, 
2-celled, 1-seeded. Seeds pendulous, not comose. 
4. Beruua. Scales of the barren catkins ternate, the middle 
one bearing the stamens. Perianth0. Scales of the fertile 
catkin 3-lobed, 3-flowered, membranous, deciduous. Styles 
2, filiform. Fr. with a membranous margin, 1-seeded. 
5. Atnus. Scales of the barren catkins 3-lobed, 3-flowered. 
Perianth 4-parted. Scales of the fertile catkin ovate, 2- 
flowered, coriaceous, persistent. Styles 2. Ovary com- 
pressed, 4 minute scales at its base. Fr. not winged, 2- 
celled. 
Tr. IV. CUPULIFERA. Male fl. ina catkin. Fem. solitary 
or aggregated or spiked. Perigone adnate to the ovary, 
