TABLE OF GENERA. 
XXXlll 
7. Agrostemma. Capsule opening at the apex. Styles 5. Petals without ap¬ 
pendage. Calyx-teeth long and linear. 
** Sepals distinct. 
8. Buffonia. Sepals 4. Petals 4. Stamens 4. Capsule opening by 2 valves. 
9. Sagina. Styles as many as the sepals, and opposite to them, 4-5. Capsule 
opening by an equal number of valves. Petals minute. 
10. McENcniA. Sepals 4. Petals 4, entire. Stamens 4. Styles 3. Capsule open¬ 
ing by 8 valves or teeth. 
11. Holosteum. Sepals 5. Petals 5, indented at the end. Capsule opening at 
the apex with 6 teeth. Styles 3. 
12. Spergula. Sepals 5. Petals 5. Styles 5, alternating with the sepals. 
13. Stellaria. Sepals 5. Petals 5, bifid. Styles 3. Capsule opening by 6 valves 
or teeth. 
14. Arenaria. Sepals 5. Petals 5, entire. Styles 3 or 5, and opposite the sepals. 
15. Cerastium. Sepals 5. Petals 5, bifid. Capsule opening with 10 teeth. Styles 3-5. 
16. Cherleria. Sepals 5. Petals very minute or wanting. Styles 3. Capsule 
opening by 3 valves. 
Order XIY. LIXACEvE. 
1. Linum. Petals and stamens 5. 
2. Radiola. Petals and stamens 4. 
Order XY. MALYACEiE. 
1. Lavatera. Involucrum 3-cleft. 
2. Malva. Involucrum of 3 distinct bracts. 
3. Altilea. Involucrum 6-9-cleft. 
Order XYI. TILIACExE. 
1. Tilia. The only British genus. 
Order XYII. HYPEBICACEiE. 
1. Hypericum. Stamens many, united into 3 or 4 groups at the base. Flowers 
yellow. 
2. Parnassia. Stamens 5, perigynous, with 5 fringed nectaries between. Flowers 
white. 
Order XYIII. ACEBACEiE. 
1. Acer. The only British genus. 
Order XIX. GEBAXIACEiE. 
1. Geranium. Fruit with a long recurved awn. 
2. Erodium. Fruit with a long spiral awn. 
Order XX. BALSAMIXACEiE. 
1. Impatiens. The only British genus. 
Order XXI. OXALIDACEiE. 
1. Oxalis. The only British genus. 
Order XXII. STAPHYLEACEiE. 
1. Stapiiylea. The only British genus. 
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