(41 ) 



3. Arctostaphylos. — Corolla urceolate. 

 Ovary 5-celled, cells 1-ovulate. Fruit 

 baccate. Shrub. 



4. Arbutus. — Corolla urceolate. Ovary 5- 

 cellecl. cells oc-seeded. Fruit a berry. 

 Tree. 



5- Samolus. — Alternate st am en s sterile. 

 Ovary 1 -eel led, cc-seeded with central 

 placeutation. 



II. Digynia. 



1. Saxifraga. — Ovary 2-celled, oc-seeded. 

 Capsule loculicidal. 



2. Tellima. — Petals lobed. Ovary 1-celled, 



oc-seeded. Styles sliort. Stigmas capi- 

 tate. Capsule dehiscent at the apex. 



3. Tiarella. — Petals entire. Ovary 1-celled. 



Styles short. Stigmas simj^le. Capsule 

 dehiscent to the base; valves unequal. 



4. Acfena. — Calyx tube contracted at the 

 tbroat, angular, the angles armed with 

 glochidiate prickles. Petals 0. Stig- 

 mas penicillate. Akenes 2, enclosed in 

 the calyx tube, 



m. Trigynia. 



1. Silene. — Calyx gamosepalous, 5-dentate, 

 without bracts at the base. Petals un- 

 guicalate. Capsule dehiscent by teeth. 

 Seeds reniform. 



