GAMOPETALAE. 141 
104 (a) Corolla-lobes imbricate in aestivation. 
Anthers free. Ovule pendulous. Cauline 
leaves opposite or verticillate. 105. 
(0) Corolla-lobes valvate or open in aestiva- 
tion. Anthers most frequently coherent. 
Ovule usually erect. Cauline leaves 
usually alternate. Stigmas1-2.* 107. 
105 (a) Stamens 5. Fruit more or less succulent 
and drupaceous. Shrubs or trees. 
Flowers corymbose or panicled. Stigmas 
3. Seed albuminous. Caprifoliaceae. 
(0) Stamens 1-4, Fruit dry (an achene). 
Herbs or undershrubs, rarely shrubs. 106. 
106 (z) Flowers in heads (rarely cymes); each 
flower enclosed at the base by a tubular 
involucel. Seed albuminous. Ovary 
l-celled. Stigma 1. Dipsaceae. 
(0) Flowers in cymes, without an involucel. 
Seed exalbuminous. Ovary 1-3-celled. 
Stigmas 1-3. Valerianeae. 
107 (2) Stigma included by a cup-shaped or 
bilabiate indusium. Ovule erect. Seed 
albuminous. Goodenoviede. 
(0) Stigma without an indusium. 108. 
108 (a2) Style entire at the top. Ovule pendul- 
* Three in some Cucurbitaceae, the petals of which are 
almost free, the corolla-tube being united with the calyx- 
tube. They have climbing or prostrate stems and 
unisexual flowers. 
