CLASS XII ORDER I 357 



dehiscent at its strait suture. 26. 61 (cohosh, black snake root, bug 

 bane). S. 



SARRACE'NIA. Calyx double, permanent, 3 and 5-leaved ; corolla fl-petalled, 

 caducous ; stigma peltate, permanent, very large, covering the stamens ; cap- 

 sule 5-celled, 5-valved, many seeded. 54. 62 (side saddle flower). S. 



NUPHAH. Calyx 5 or 6-leaved, petals many, minute, inserted on the recepta- 

 cle with the stamens, nectariferous on their backs ; stigma with a broad disk, 

 and radiate furrows, sessile ; pericarp berry-like, many celled, many seeded. 

 13. 62 (water lily, or yellow pond lily). S. 



NYMPHAE'A. Calyx 4 to 7-leaved ; corolla many petalled, petals about equalling 

 the length of the calyx leaves, attached to the germ beneath the stamens ; stig- 

 ma a broad disk, marked with radiated lines ; pericarp berry- like, many celled, 

 many seeded. 13. 62 (pond-lily). 



Exotic. 



PAPA'VER. Calyx 2-leaved, caducous; corolla 4-petalled; stigma a broad 

 disk, with radiating lines ; capsule 1-celled, dehiscent by pores under the per- 

 manent stigma. 27. 62 (poppy). 



THE'A. Calyx 5 or 6-leaved ; corolla 6 or 9-petalled ; capsule 3-seeded. 54. 

 71 (tea). 



CIT"RUS. Calyx 5-cleft ; petals 5, oblong ; filaments dilated at the base, in 

 several parcels ; berry 9 to 1 8-celled ; Polyadelphous. 1 8. 70 (orange, lemon). 



ORDER II. D1GYNIA, TO ORDER V. PENTAGYN1A, OR DI-PENTAGYNIA. 



DELPHI'NUJM. Calyx ; corolla 5-petalled, unequal ; nectary 2-cleft, horned 

 behind : capsules 1 or 3, pod-like. By some the corolla is considered as a co- 

 loured calyx. 26. 61 (larkspur). S. 



Acom'ruM. Calyx ; petals 5, upper one valved ; nectaries 2, hooded, pe- 

 duncled, recurved : capsule 3 or 5, pod-like. By some the corolla is considered 

 as a coloured calyx. 26. 61 (monk's hood). S. 



AQBILE'GIA. Calyx ; petals 5, caducous; nectaries 5, alternating with the 

 petals, and terminating downwards in a spur-like nectary ; capsules 5, erect ; 

 acuminated with the permanent styles, many seeded. By some the nectaries 

 are considered as petals and the corolla as a coloured calyx. 26. 61 (colum- 

 bine). 5. 



H YPER"ic!JM. Calyx 5-parted ; divisions equal, sub-ovate ; corolla 5-petalled ; 

 filaments often united at the base in 3 or 5 sets ; styles 2 to 5 ; capsules mem- 

 branaceous, roundish, with a number of cells equal to the number of styles. 

 The bases of the filaments are often in groups, when they are not united. 20. 

 61 (St. John's wort). S. 



Exotic. 



P^O'NIA. Calyx 5-leaved ; petals 5 ; styles ; stigmas 2 or 3 ; capsules 

 pod-like, many seeded. Remarkable for the multiplication of petals by rich 

 culture. 26. 61 (peony). 



ORDER XIII. POLYGYNIA. 



A. Perianth none. 



CLEM"ATIS. Petals 3, 4, 5, or 6 ; seeds compressed ; styles permanent, be- 

 coming long plumose tails. (Some species are dioecious.) 26. 61 (virgin's 

 bower). By some the corolla is considered a coloured calyx. S. 



THALIC"TRUM. Petals 4 or 5; filaments very long; seeds without tails, 

 striate, terete. (Some species are dioecious.) 26.61 (meadow rue). The co- 

 rolla is considered a coloured calyx by some. S. 



ANEMO'NE. Petals 5 to 9 ; seeds numerous, naked. 26. 61 (wind-flower, 

 rue anemone). The corolla is considered a calyx by some. S. 



COP"TIS. Petals 5 or 6, caducous ; nectaries small, 5 or 6, cowled ; capsules 

 oblong, 5 to 8, stiped, stellate, beaked, many seeded. 26. 61 (gold thread). 

 By some the nectaries are mistaken for corollas, and the corollas for calyxes. 



CAL"THA. Petals 5 to 9, orbicular; capsules numerous (5 to 10), many 

 seeded, compressed ; 1-celied, spreading ; nectaries 0. (Pistils variable in num- 

 ber.) 26. 61 (American cowslip). S. By some the corolla is mistaken for a 

 coloured calyx. 



Exotic. 



HELLEB"ORUS. Petals 5 or more; nectary 2-lipped, tubular; capsules 5 or 

 6 ; many seeded, erectish, compressed. 26. 61 (hellebore). 



