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CLASSES, OKDERS, AND GENERA. XXXI 
Class VIII. OCTANDRIA. 8 stamens. 
Order I. Monogynia. 1 style. 
* Perianth double, inferior. 
1. Acer. Cal. 5-cleft. Pet. 5. Germen 2-lobed, 2-seeded. Caps. 
2, united at the base; each with a long winged membrane 
(samara), 1 — 2-seeded. p. 83. 
2. Chlora. Cal. of 8 segments, in a single row. Cor. of 1 piece, 
nearly rotate : the stamens alternate with its lobes. Germen 
1-celled. Stigma 2 — 4-cleft. Caps, many-seeded, p. 284. 
3. PRIMUL ACEiE. Cal. 8 -partite, in a single row. Cor. mono- 
petalous, rotate, 8-partite, with the stamens inserted on and 
opposite to its lobes. — (Trientalis and Lysimachia.) p. 343. 
4. Monotropa. Cal. and cor. of 4 pieces each. Germen 4-celled, 
many-seeded.— Leaves none. p. 277. 
5. ERICACEAE. Cal. of 4 leaves or deeply 4-cleft, sometimes 
with 4 similar outer pieces. Cor. of one piece. Stigma 
entire. Germen 4-celled. p. 269. 
** Perianth double, superior. 
6. Vaccinium. Co of one piece, 4-cleft, p. 267. 
7. ONAGRACEiE Petals 4. p. 141. 
*** Perianth single, inferior. 
8 Daphne. Perianth usually coloured, 4-cleft, bearing the 
stamens. Style undivided. Germen 1-seeded. — Stipules 0. 
p. 378. 
9. Monotropa. Perianth of 4 pieces, with as many external 
alternating bracteas. Stam. free from the perianth. Germen 
4-celled, many-seeded. — Leaves none. p. 277. 
10. Polygonum. Perianth 5-parted. Style 2 — 3-cleft. Germen 
1-seeded. — Stipules sheathing, p. 369. 
Ord. II. Digynia. 2 styles. 
11. Polygonum. Perianth single, inferior, coloured, 5-parted. Ger- 
men 1-seeded. — Leaves alternate, with sheathing stipules, 
p. 369. 
12. Scleranthus. Perianth single, inferior, urceolate, contracted 
at the mouth; tube hard and coriaceous; limb 4-cleft. Ger- 
men 1-seeded. — Leaves opposite without stipules, p. 368. 
13. Ciirysosplenium. Perianth single, half-superior, spreading. 
Germen many-seeded. — Leaves without stipules, p. 164. 
Ord. III. Trigynia. 3 styles. 
14. Polygonum. Perianth single, inferior, in 5 deep, coloured, per- 
sistent segments. Fruit a 1-seeded achene. p. 369. 
15. Drosera. Perianth double. Fruit many-seeded, p. 50. 
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