XXXVlll LINNiEAN ARRANGEMENT 



RuppiA. Flower(>2, perfect, naked, on a spadix arising from the sheath- 

 ing base of the leaves. Anthers large, peltate. Stigmas sessile, peltate. 

 Fruit drupaceous, pedicellate. Naiadacece, p. 386, 



PoTAMOGETON. Flowcrs perfect, on a spadix arising from a spathe. 

 Perianth single, 4-leaved. Anthers nearly sessile, alternating with the 

 divisions of the perianth. Ovaries 4, becoming four compressed and some^ 

 what cochleate nuts, NaiadacecB, p. 386. 



CLASS v.— PENTANDRIA — 5 -Sfomens. 



Order I.— MONOGYNIA.— 1 PislU. 



* Perianth double^ inferior. Corolla 1-peialled. Fruit consisting of four 

 naked mits or seeds, m^ 



Obs. The genera of this division constitute the Natural Order JBora- 

 ginacece, p. 247. 



** Perianth double, inferior. Corolla 1-petalled. Seeds covered with a dis- 

 tinct capsule. 



Anagallis. Calyx 5-parted, Corolla rotate, deeply 5-parted. Filaments 

 hairy. Capsule globose, opening hemispherically, many-seeded. Prirmo- 

 lacece, p. 292. 



Lysimachia. Calyx 5 — 6-parted. Corolla somewhat rotate, 5 — 6- 

 parted. Capsule globose, 5 — 10-valved, dehiscent at the summit. Primu- 

 lacetB, p. 291. 



Primula. Calyx tubular, 5-toothed. Corolla salver-form ; tube cylin- 

 dric ; orifice open. Stigma globose. Capsule opening with 10 teeth. 

 PrimulacecB, p. 289. 



DoDECANTHEON. Calyx 5-parted, reflexed. Corolla rotate, 5-parted, 

 the lobes reflexed. Capsule oblong-ovate, 5-valved, many-seeded. Primu- 

 lacecB, p. 289. 



HoTTONiA. Calyx 5-parted. Corolla salver-form, 5-lobed. Stamens 

 seated on the tube of the corolla. Stigma globose. Capsule globose, 

 crowned with the persistent style, at length 5-valved. Primulacece, p. 290. 



Menyanthes. Calyx 5-parted. Corolla funnel-form ; limb spreading, 

 5-lobed, equal, hairy within. Stigma 1— 2-lobed. Capsule 1 -celled, with 

 the axis of the valves seminiferous. Ge7itianace<x, p. 241. 



LiMNANTHEMUM. Calyx 5-parted. Corolla rotate, 5-parted, the lobes 

 bearded or- scaly at base, and furnished with glands. Stigma»2-lobed. 

 Capsule 1-celled, few-seeded. Gentianacea, p. 241. 



Sabbatia. Calyx 5 — 12-parJ;ed. Corolla rotate, 5 — 12-parted. Anthers 

 at length revolute. Stigmas 2, spiral. Capsule 1-celled, 2-valved. Gen^ 

 tianacca, p. 238. ' 



ERYTHRiEA. Calyx tubular, 5-cleft. Corolla funnel-form; limb short; 

 5-cleft. Anthers, after flowering, spirally twisted. Style erect. Stigmas 2. 

 Capsule Unear, 1 — 2-celled, 2-valved. Gentianacecc, p. 239. 



Hydrophyllum. Calyx 5-parted, the lobes subulate and the sinuses 

 mostly naked. Corolla campanulate, 5-cleft, with 5 longitudinal margined 

 grooves on the inside alternating with the lobes. Filaments bearded in the 

 middle. Stigma bifid. Capsule globose, 2-valved, 1-seeded, 3 other seeds 

 mostly abortive. Hydrophyllacece, p. 252. 



Phacelia. Calyx 5-parted, the sinuses naked. Corolla tubular-campan- 



