XXX11 SYNOPSIS OF THE GENERA. 



Page Order 2. DlGYNlA. 



137. POLYGONACE^. 



Order 3. TRIGYNIA. 



143. RUMEX. Perianth of 6 segments, the 3 inner enlarged in 



fruit. Achene triquetrous. Styles feathery. 

 169. TRIGLOCHIN. Perianth of 6 segments, 3 outer and 3 inner. 



Anthers sessile in the leaves of the perianth. Capsules 3 6. 

 165. TOFIELDIA. Flowers in racemes, bracteoles 3 connate. 



Perianth 6-partite, st. seated at the base of the segments. 



Stigmas obtuse. Fl. small, pale yellow. 

 24. ELATINE. Perianth double. Cal. of 3 sepals. Pet. 3, 



coloured. Capsule superior, 3 -celled. (See Paris.) 



Order 4. POLYGYNIA. 



168. ALISMA. Cal. of 3 sepals. Pet. 3, coloured. Achenes 

 clustered. 



ClassS. OGTANDRIA. 



Order 1. MONOGYNIA. 



A. Perianth double, superior. 

 39. ONAGRACE.E. Sep. and pet. 4 each. Capsule linear. Seeds 



downy. 

 110. VACCTNIUM, Cor. ovate or campanulate. Berry 4-celled. 



B. Perianth double, inferior. 

 33. ACER, Cal. 5-partite. Pet. 5. Fruit with 2 wings (a 



double samara). 

 84. ERICACE.^. Cal. and cor. 4 5-cleft. Anthers opening by 



pores. Le. opposite or whorled. 



C. Perianth single. 



145. DAPHNE. Perianth 4-cleft. St. in the tube of the cor. 

 Berry 1 -seeded. 



(See Polygonum.) 



Order 2. DIGYNIA. 



70, CHRYSOSPLENIUM. Perianth single, spreading. Capsule 

 with 2 spreading beaks, 1 -celled, many-seeded. 

 (See Scleranthus and Polygonum.) 



Order 3. TKIGYNIA. 



(See Polygonum and Drosera.) 



