6 KEY AND FLORA 
Styles or stigmas 3, separate. Petals 3, lasting FAMILY PAGE 
several days. Leaves netted-veined . . 10. (Trillium) Lily. 30 
Style 1, stigma 3-lobed or 6-toothed. 
Corolla not actinomorphic. Aquatic herbs 
with parallel-veined leaves . . . . 8 Pickerel Weed. 28 
+tt Perianth actinomorphic, its divisions all alike 
ornearly so, petal-like . . . . . . 10.Lily ... . 80 
** Perianth not hypogynous. 
Anthers6 . . . . . . . . . . Ll, Amaryllis . . 48 
Agithers $e ks eo el eas, cs CED IB ee ee, ee, 4B 
Anthers 1 or 2 : » « » » « » 13. Orchis . . . 47 
SUBCLASS II. —DICOTYLEDONS. Flowers usually with their parts in 
fives or fours. Leaves netted-veined. Cotyledons 2. 
I. Apetalous Division. Flowers without a corolla or without either calyx or 
corolla.! 
A 
Flowers moneecious or dicecious, one or both 
sorts in catkins. 
(1) Staminate flowers in catkins, the pistillate ones 
solitary or clustered, 
Leaves pinnately compound . . . . 16. Walnut . . . 52 
Leavessimple. . . gs) ewe Ge TBs Beech; ic -¢. . “68 
(2) Both kinds of flowers in catkins. 
(a) Leaves alternate. 
Ovaries in fruit becoming fleshy and com- 
bining into an aggregate fruit . . . 20. Mulberry . 64 
Fruit 1-seeded, a drupe or minute nut. 
Aromatic shrubs . . . . . . . 15. Bayberry . . 51 
Fruit a capsule, seeds withsilky hairs. . 14. Willow . . 48 
Fruit a minute nut or akene, Mostly large 
shrubs or trees, not very aromatic . . 17. Birch . . 64 
(b) Leaves opposite, small parasitic shrubs . . 28. Mistletoe. . . 68 
B 
Flowers not in catkins, both calyx and co- 
rolla wanting . . . . . . . . 45. Sycamore . . 118 
1 When only one floral envelope is present, this is said to be the calyx and 
the corolla is considered to be missing. 
