184 LINN^AN CLASS XII. 



on the calyx. Styles 3 — 6-cleft. Capsule 4-celled, many-seeded. For 

 tulaca:,ece, 22. 



Talinum. Sepals 2. Petals 5, distinct. Style filiform, cleft at the 

 apex. Capsule 3-valved, 1-celled, many-seeded. Portulacacece, 22. 



Chelidoniiim. Sepals 2, caducous. Petals 4. Capsule 2-valved, 

 1-celled, many-seeded, linear, dehiscing from the base upward. Papa- 

 veracece, 11. 



Polanisia. Sepals 4, spreading. Petals 4, unequal, entire, nearly 

 orbicular. Pod linear, sessile or nearly so. Capparidacece, 14. 



Glaucium. Sepals 2, caducous. Petals 4. Capsule linear, 2-valved» 

 2-celled, many-seeded, seeds reniform. Papaveraceoe, 11. 



Argenione. Sepals 3, caducous. Petals 6. Stigmas 4 — '7. Capsule 

 opening by valves, separating from the placenta. Papaveracece, 11. 



Sanguinaria. Sepals 2, caducous. Petals 8 — 12. Stigmas 2. Cap- 

 sule oblong-ovate. Seeds numerous. Papaveraceoe, \\. 



Papaver. Sepals 2. Petals 4. Stigmas 4 — 20, sessile, radiating. 

 Capsule 1-celled, opening by pores beneath the lobes of the stigma. 

 Papaveracece, 11. 



Podophyllum. Sepals 3, caducous. Petals 6 — 9, obovate. Stigma 

 large, sessile. Fruit fleshy. Seeds numerous, on a lateral placenta. 

 Berber idaceoe, 6. 



Actoia. Sepals 4 — 5. Petals 4 — 8 or none, spatulate, oblong, short- 

 er than the stamens. Fruit baccate, solitary, many-seeded. Ranuncu- 

 lacece, 1. 



Sarracenia. Sepals 5, with a 8-leaved involucre. Petals 5, ungui- 

 culate. Stigma very large, 6-angled, petaloid, covering the stamens. 

 Capsule o-celled, 5-valved, many-seeded. Sarraceniacece, 10. 



Nuphar. Sepals 5 — 6. Petals numerous, small, inserted on the re- 

 ceptacle. Fruit berry-like, many-celled, many-seeded. Nymphceacece, 9. 



Nymph(Ba. Sepals 4. Corolla many-petaled. Stigma a broad disk. 

 Fruit berry-like, many-celled, many-seeded. Nymphaiacece, 9. 



Bejaria. Calyx 7-cleft. Corolla T-petaled. Style 1. Capsule many- 

 seeded, Y-celled. PJricacece, 72. 



Bhizopkora. Calyx superior, limbs 4, many-lobed. Petals oblong, 

 emarginate, coriaceous. Fruit ovate, 1-celled, indehiscent. Trees. 

 Rhizophoracece, 48. 



Citrus. Calyx 5-cleft. Petals 5, oblong, dilated at the base. Fruit 

 9 — 18-celled. Awrantacece, 30. 



Oeder II. TO Order V.— DI-PENTAGYNIA. 

 The genera belonging to these orders will be found under the Nat- 

 ural Orders 1 and 19. Delphinium, Aconitum, Aquilegia, Cimicifuga, 

 under the 1st ; Ascyrum, Hypericum, and Elodea, under the 19th. 



Order XII.— POLYGYRIA. 



Magnolia. Sepals 3, caducous. Petals 6 — 12. Carpels arranged in 

 a cone, 2-valved, 1 -seeded. Magnoliacece, 2. 



Ziriodendron. Sepals 3, concave. Petals 6, in two series, obovate, 

 lanceolate, campanulate. Carpela imbricated in a dense cone, 1 — 2- 

 seeded. (Tulip-tree.) Magnoliacea;, 2. 



