XX SYNOPSIS OF GENERA. 



Class VIII. OCTANDRIA. Siam. 8. 



Order I. MONOGYNIA- Pistil 1. 



* Fl. complete. 



ACER. Pet. 5. Cal 5- cleft, inferior. Caps, winged. Seeds 1 or 2. 

 Acerinece, p. 54. 



EPILOBIUM. Pet. 4. Cal. 4-cleft, superior. Caps, of 4 cells. Seeds 

 bearded. Onagrariee, p. 109. 



CHLORA. Cor. in 8, or 6, deep segments. Cal. inferior, of as many 

 leaves. Caps, of 1 cell. Gentianece, p. 188. 



VACCINIUM. Cor. of 1 petal. Cal. 4-cleft. Berry inferior. P'acciniecc, 

 p. 13G. 



MENZIESIA. Cor. of 1 petal. Cal. of one leaf. Caps, superior; par- 

 titions double, from the margins of the valves. Ericea, p. 180. 



ERICA. Cor. of 1 petal. Cal. of 4 leaves. Caps, superior; partitions 

 simple, from the centre of each valve. Ericece, p. 180. 



CALLUNA. Cor. of 1 petal. Cal. double; each of 4 leaves. Caps, su- 

 perior ; partitions from the column, alternate with the valves. Ericeoe^ 

 p. 179. 



(See Monotropa in Cl. x.) 



DIGYNIA. Styles 2. 

 (See Polygonum in Ord. ii., Chrysosplenium and Scleranthus in Cl. x.) 



Order II. TRIGYNIA. Pistils 3. 



POLYGONUM. Cal. coloured, in several deep segments, inferior. Cor. 0. 

 Seed 1, naked. Polygonea:, p. 223. 



Order III. TETRAGYNIA. Pistils 4. 



ADOXA. Cal. half-inferior. Cor. in 4 or 5 segments. Berry invested 

 with the calyx. Seeds 4, bordered. Saxifragece, p. 63. 



PARIS. Cal. of 4 leaves. Pet. 4. Berry superior. Seeds numerous, 

 globose. Smilacetz, p. 287- 



ELATINE. Cal. of 4 leaves. Pet. 4. Caps, superior, of 4 cells ; parti- 

 tions from the column. Seeds oblong. Caryophyllecs, p. 45. 



(See Sagina Cl. iv.) 



Class IX. ENNEANDRIA. Stamens 9. 



Order I. HEXAGYNIA. Pistils 6. 



BUTOMUS. Cal. 0. Pet. 6. Caps. 6, with many seeds. Butomece, 

 p. 288. 



Class X. DECANDRIA. Stamens 10. 



Order I. MONOGYNIA. Pistil 1. 



* Fl. polypetalous. 



MONOTROPA. Pet. 10, or 8 ; 5, or 4, outermost protuberant at the base. 

 Anthers of 1 cell, and 2 valves. Pyrolacefe, p. 184. 



