GAMOPETALAE. 143 
rarely the filaments or the anthers (not 
both) connate. 114. 
114 (a) Leaves opposite, exstipulate (very rarely 
stipulate and then pinnatisect), not 
growing black bydrying. Caprifoliaceae. 
(0) Leaves opposite and stipulate or verti- 
cillate, entire or rarely dentate or lobed, 
frequently growing black by drying. 
Rubiaceae. 
115 (a) Petals connate throughout in the form of 
acap. Ovule in each cell 1, pendulous. 
Style divided. Shrubs or trees. Leaves 
compound, stipulate. Flowers umbellate 
or capitate. Tropics. Araliaceae. 
(6) Petals free at the top or in the middle. 
Ovules in each cell 1, erect, or 2 or more. 
Style usually undivided. 116. 
116 (a) Flowers unisexual, regular, very rarely 
irregular; in the latter case stamens 
free. Anthers usually extrorse. Seeds 
exalbuminous. Climbing or prostrate 
plants. Juicenot milky. Cucurbitaceae. 
(6) Flowers hermaphrodite, rarely unisexual, 
but then irregular and with connate 
stamens. Anthers introrse. Seeds al- 
buminous. Le 
117 (a) Stigma included by a cup-shaped or 
bilabiate indusium. Juice not milky. 
