22 KEY TO PLANTS. 
6 (a) Flowers capitate. Leaves palmately- 
lobed, stipulate, alternate. Trees. 
Flowers moncecious. Connective peltate. 
Style long. Stigma entire. Ovule 
pendulous. Fruit consisting of nuts. 
Kurope, Asia, North America. 
Platanaceae. 
(b) Flowers spicate. Leaves entire or den- 
tate, rarely pinnately-lobed, but exstipu- 
late. ‘é 
7 (a) Leaves opposite, stipulate. Stamen 1, or 
3 connate in a 3-lobed mass. Ovule 
pendulous. Embryo enclosed by a 
fleshy albumen. Stigma entire, sessile 
or nearly so. Fruita drupe. Asia and 
Polynesia. Chloranthaceae. 
(b) Leaves opposite and exstipulate, or alter- 
nate. Stamens 2-16, distinct or connate 
at the base only. Ovule erect. Em- 
bryo in a small sac at the top of a mealy 
albumen, or destitute of albumen. 8. 
8 (a) Fruit a drupe. Seed without an albu- 
men. Stigmas 2. Spikes usually ses- 
sile. Shrubs or trees. Leaves exstipu- 
late, alternate. Flowers unisexual. 
Myricaceae. 
(6) Fruit a berry. Seed with a copious albu- 
