378 POLYANDRIA POLYGYNIA. 



POLYANDRIA. 

 MONOGYNIA. 



238. TILIA. Calyx inferior, 5-partcd, deciduous; pet. 5; capsule glo- 

 bose, 5-celled, 5-valved, opening at the base ; (by abortion 1-celled, 

 1 2-seeded.) 



239. HELIANTHEMUM. Calyx 5-leaved; exterior leaflets smaller 

 pet. 5 ; capsule superior, 1-celled, 3-valved ; valves septiferous in 

 the middle ; seeds angular. 



240. PORTULACCA. Calyx inferior, bifid; pet. 5; capsule 1-celled, 

 opening circularly ; recept. unconnected, 5-lobed. 



241. CHELIDONIUM. Calyx 2-leaved, deciduous; pet. 4; stigma 

 small, sessile, bifid; capsule elongated, silique-form, 2-valved, 1- 

 celled, linear; seeds numerous, crested. 



242. SANGUINARIA. Calyx 2-leaved, deciduous; pet. about 8; 

 stigma didymous ; capsule oblong, 2-valved, 1-cellcd, acute at each 

 end ; valves deciduous ; recept. 2, persistent. 



243. ACTJSA. Calyx 4-leaved, deciduous; pet. 4, often wanting; 

 stigma sessile, capitate; b erry superior, 1-celled, many-seeded; seeds- 

 hemispherical. 



244. SARRACENIA. Calyx double, persistent ; exterior smaller, 3- 

 leaved ; interior 5-leaved ; pet. 5, deciduous ; stigma very large, 

 persistent, peltate covering the stamens ; capsule 5 celled, 5-valved, 

 many-seeded. 



245. NUPHAR. Calyx 5 6-leaved ; pet. numerous, minute, inserted 

 with the stamens upon the receptacle ; stigma disk-form, radiate ; 

 pericarp berry-like, many-celled, many-seeded. 



246. NYMPH^EA. Calyx 4 5-leaved; pet. numerous, inserted upon 

 the germens beneath the stamens ; stigma disk-form, radiate ; peri- 

 carp berry-like, many-celled, many-seeded. 



DI-PENTAGYNIA. 



247. AQUILEGIA. Calyx 5-leaved, petaloid, deciduous; petals 5, 

 terminating below in a spurred nectary ; capsule 5, erect, acuminate 

 with the styles, many-seeded. 



248. CIMICIFUGA. Calyx 4 5-leaved ; pet. 46, (sometimes want- 



ing ;) capsules 4 5, oblong, many-seeded. 

 249. HYPERICUM. Calyx 5-parted; 



segments equal; pet. 5; stam. 

 polyadelphous ; styles 15 ; capsule membranaceous, 1 5-celled. 



POLYGYNIA. 



250. LIRIODENDRON. Calyx 3-leaved ; pet. 6 ; samaras sublanc*- 

 olate, 1 2-seeded, imbricated in a cone. 



