3. 
4. 
5. 
(41) 
Arctostaphylos.—Corolla urceolate. 
Ovary 5-celled, calls l-ovulate. Fruit 
baceate. Shrub. 
Arbutus.—Corolla urceolate.. Ovary 5- 
celled, cells o-seeded. Fruit a berry. 
Tree. 
Samolus.—Alternate stamens sterile. 
Ovary 1-celled, «-seeded with central 
placentation. 
Il. Digynia. 
1. 
2. 
Saxifraga.—Ovary 2-celled, a-seeded. 
Capsule loculicidal. 
Tellima.-—Petals lobed. Ovary l-celled, 
ow-seeded. Styles short. Stigmas capi- 
tate. Capsule dehiscent at the apex. 
Tiarella.—Petals entire. Ovary 1-celled. 
Stiles short. Stigmas simple. Capsule 
dehiscent to the base; valves unequal. 
Acena.—Calyx tube contracted at the 
throat, angular, the angles armed with 
glochidiate prick'es. Petals 0. Stig- 
mis penicillate. Akenes 2, enclosed in 
the calyx tube. 
III. Trigynia. 
1. 
Silene.—Calyx gamosgpalous, 5-dentate, 
without bracts at the base. Petals un- 
guiculate. Capsule dehiscent by teeth. 
Seeds reniform. 
