Cerasthim.'] 



DECANDRIA — rENTAGYNIA. 169 



Caps, opening with 6 teeth, many-seeded — Nat. Ord. Caryo- 

 PHYLLE^, Jiiss. — Named from stella, a star ; because the corolla 

 is spread in a star-shaped manner. 



12. Arenahia. Ca/. of 5 leaves, Pe^ 5, undivided. Cap- 

 sule 1-celled, many-seeded. — Nat. Ord. CARYOPHYLLEyE, Juss. 

 — Named from are7ia, sand; the greater number of species 

 growing in sandy soils. 



13. Cherleria. Cal. of 5 leaves united at the base. Pet. 

 5, extremely minute, notched. Stam. with glands at the base. 

 Caps. 1-celled, opening with 3 valves, many-seeded — Nat. Ord. 

 Caryophylle^, Juss. — Named in honour of John Henry 

 Clierler, a friend and coadjutor of John Bauhin. 



(See Polygonum in Cl. Vlll.) 



ORD. IV. PENTAGYNIA. 3 Styles. 



14. Cotyledon. Cal. 5-partite. Cor. monopetalous, tubu- 

 lar, 5-cleft. Capsules 5, each with a gland or nectariferous 

 scale at its base. — Nat. Ord. Crassulace^, De Cand. — Named 

 from y.oTxjXri, a cup, to which the leaves of some of the species 

 may bear a distant resemblance. 



15. Sedum. Cal. in 5 (sometimes 4 — 8) deep segments, 

 often resembling the leaves. Petals 5, patent. Germens 5, 

 each with a nectariferous scale at its base. — Nat. Ord. Crassu- 

 LACEiE, De Cand. — Named from sedo, to sit ; from the humble 

 growth of these plants on their native rocks. 



16. OxALis. Cal. 5-partite. Pet. 5, often united by the 

 bases of their claws. Filaments often combined below, 3 outer 

 ones shorter. Caps, angular, 5-celled : cells 2- or many-seeded. 

 Seeds with an elastic arillus. — Nut. Ord. Oxalide^., De Cand. 

 — Named from o^xjg, sharp or acid. The leaves of O. acetosella 

 produce oxalic acid in the state of binoxalate of Potash. 



17. Agrostemma. Cal. monophyllous, tubular, coriaceous, 

 with 3 teeth. Pet. 3, clawed, their border undivided. Caps. 

 opening with 3 teeth, 1-celled. — Nat. Ord. CARYOPHYLLEiE, 

 Juss. — Name ; ay^ou eniMfjja, Crown of the field, peculiarly appli- 

 cable to our species, which is a great ornament to corn-fields. 



18. Lychnis. Cal. monophyllous, tubular, 5-toothed. Pet. 

 5, clawed, crowned at the mouth, mostly divided at the border. 

 — Nat. Ord. Caryophylle^, Juss — Named from y.xjyjog, a 

 lamp ; the thick cottony substance on the leaves of some species, 

 or some similar plant, having been employed as wicks to lamps. 



19. Cerastium. Cal. of 3 leaves. Pet. 3, cloven. Caps. 

 bursting at the top with 10 teeth (5 in C. aquaticum) — Nat. 

 Ord. CARYOPHYLLEiE, Juss. — Named, — xggas, a horn, from the 

 rather long and curved capsules of some species. 



