XV111 
ANALYTICAL KEY. 
Stamens united with the base of the petals, mona- 
delphous Malvaceje, 10 
Stamens inserted on the receptacle. 
Filaments much shorter than the anther: trees. Anonace^e, 5 
Filaments longer than the anther. 
Flowers dioecious; twiners with alternate 
l eaves MENISPERMACEiE, 5 
Flowers perfect; if climbers, the leaves opposite. 
Leaves not peltate; petals deciduous. Ranunculace^e, 1-3 
Leaves peltate; petals persistent. 
Brasenia, in Nymph^eace^e. 
Pistils several-lobed, the ovaries united below the middle. 
Resedace^e. 
Pistils several, their ovaries cohering in a ring around 
the axis Malvaceae, 10 
Pistils strictly one as to the ovary; the styles or stigmas several. 
Leaves punctate with transparent dots. . . Hypericace^e, 9 
Leaves not punctate with transparent dots. 
Ovary simple, 1-celled Rosace^e, 20 
Ovary simple, 1-celled, with one parietal many-ovuled placenta. 
Leaves 2-3-ternately compound or dissected. Ranunculace.e, 2-3 
Leaves peltate, simply lobed. Podophyllum, in Berberidace^e, 5 
Ovary compound, 1-celled, with a central placenta. 
PortulacacEjE, 9 
Ovary compound, 1-celled, with two or more parietal placentae. 
Calyx caducous ; juice milky or colored. . Papaverace^e, 7 
Calyx deciduous, of 4 sepals. . . . Capparidace^e. 
Calyx persistent, of 3 or 5 sepals. . . . Cistace^e, 8 
Ovary compound, several-celled. 
Calix valvate in the bud, and 
Persistent; stamens monadelphous: anthers 
1-celled. Malvaceae, 10 
Deciduous; anthers 2-celled. . . . Tiliace^e, 11 
Calyx imbricated in the bud, persistent. 
Shrubs; stamens on the base of the petals. 
TERNSTR(EMIACEyE. 
Aquatic or marsh herbs : ovules many. 
On 5 placentae in the axis. . . Sarraceniace^e, 6 
On 8-10 partitions Nymph^eace^e, 6 
2. Calyx more or less coherent with the surface of the ( compound ) ovary. 
Ovary 8-30-celled; ovules many, on the partitions: 
aquatic . Nymph^eace^e, 6 
Ovary 10-celled ; cells 1-ovuled. . Amelanchier, in Rosace^e. 
