XXI 
Fls gen. ebracteate. Embryo annular or surrounding the albumen 
spirally. 
85. Amaranthaceae. Same characters, but perianth more or 
less membranous and fls with 2 bracts. 
87. Phytolacaceae. Fr. a true, 10-celled, berry. 
t Fls unisexual in separate inflorescences, the 
males at least in catkins (Amentaceee). Lig. pis. 
* Fls monoecious. (Cl. 21.) 
98. Juglandeae. Ovary 1-celled, 1-ovuled. Drupe 2-valved. 
—Ls imparipinnate. Rather allied to Terebinthacese. 
99. Fagineae (Quercineee). Ovary 3—many-celled, cells 2- 
ovuled. Styles or stigs 3—several. Male fls with 5—10-fid or 
-partite perianth. Achene 1-seeded, nut-like, single or several 
together, surrounded by a cupule. 
100. Carpineae (Corylem). Ovary 2-celled, cells 1-ovuled. 
Styles 2, filiform. Male fls without perianth. Achene 1-seeded, 
surrounded by an involucre. 
101. Betulaceae. Ovary and styles as above. Male fls with 
perianth divisions free or united. 
97. Platanaceae. Ovary 1-celled, cell 2-ovuled. Perianth 0. 
Male and female fls in globular catkins suspended on long 
peduncles. 
Fls dioecious. (Cl. 22.) 
102. Salicaceae. Fr. a 2-valved, many-seeded capsule. Seed 
crowned with a tuft of hairs. 
Monocotyledons. 
a) Perianth complete, gen. with 6 divisions, su¬ 
perior. 
§ Seeds albuminous. 
116. Dioscoreacese. Fls dioecious. Perianth resembling a 
calyx, slightly coloured. Stas 6. Berry.—Stem winding. Ls 
net-veined. 
114. Amaryllideae. Fls hermaphrodite. Perianth petaloid. 
Stas 6, capsule.—Bulbous pis with linear ls. Distinguished 
from Liliacece by their inf. ovary. 
113. Iridese. Same characters, but stas 3.—Pis with noded 
or bulbous root-stock. Ls linear or ensiform. 
§ Seed exalbuminous. 
112. Orchidaceae. Fls hermaphrodite. Perianth irreg., the 
3 outer and 2 inner perianth divisions fairly similar; the third 
inner one (the lip) gen. turned downwards by the torsion of 
the ovary, peculiarly formed and often prolonged to a spur. 
Stas united with the stig. in a column (gynostegium), the 
2 lateral ones gen. barren, the central one fertile (in Cypri- 
