CLASS IX. CLASS X. 353 



DAPH"NE. Calyx ; corolla 4-cleft, withering, including the stamens ; drupe 

 1-seeded. 31. 25 (mezereon). 



TROP.E'OLUM. Calyx 4 or 5-cleft, coloured, spurred ; petals 4 or 5, unequal ; 

 nuts leathery, sulcate. 23. 73 (nasturtion). 



ORDER II. DIGVNIA. 



CHRYSOSPLE'NIUM. Calyx superior, 4 or 5-cleft, coloured ; corolla ; cap- 

 sule 2-beaked, 1-celled, many seeded. (The terminal flowers in the European 

 specimens are decandrous, but the plant is always octandrous in America.) 

 13. 84 (golden saxifrage, water-carpet). S. 



ORDER III. TR1GYMA. 



POLYG"ONUM. Calyx inferior, 5-parted, coloured : corolla ; seed 1, angu- 

 lar, covered with the calyx. Stamens and pistils vary in number. The calyx 

 in some species might be taken for a corolla. 12. 28 (knot-grass, water-pep- 

 per, buckwheat, heart's-ease). S. 



CLASS IX. ENNEANDRIA. 



ORDER I. MONOGYMA. 



LAU'RUS. Calyx 4 to 6-parted ; corolla ; nectaries 3, each a 2-bristled or 

 2-l<fbed gland, surrounding the germ : drupe 1-seeded. Stamens vary from 3 

 to 14, but they are generally in two senss of 6 each, with 3 of the inner series 

 barren often dioecious. The calyx may be taken for a corolla. 12. 27 (sas- 

 safras, spice-bush). *S. 



ORDER II. TRIGYNIA. 



Exotic. 



RHE'UM. Calyx ; corolla 6-cleit, permanent ; seed 1, 3-sided. 12. 28 

 (rhubarb). 



CLASS X. DECANDRIA. 



ORDER I. MONOGYNIA. 



A. Flowers polypetalous, irregular, (mostly papilionaceous.} 



CAS"SIA. Calyx 5-leaved ; corolla 5-petalled : anthers 3, lower ones beaked, 

 and on longer incurved filaments : legume membranaceous.- 33. 93 (cassia). S. 



BAPTI'SIA. PODALYR"IA. Calyx 4 or 5-cleft half-way (sometimes 4-tooth- 

 ed) somewhat 2-lipped ; corolla papilionaceous ; wings of the length of the 

 reflexed banner ; stamens caducous : legume inflated, smooth, many-seeded. 

 32. 93 (wild indigo). S. 



CER"CIS. Calyx 5-toothed, gibbous below ; corolla papilionaceous, wings 

 longer than the banner ; keel 2-petalled ; legume compressed ; seed-bearing 

 suture margined ; seeds obovate. 33. 93 ( Judas-tree j. S. 

 B. F'owers polype'alrnts, regular, 



PY'ROLA. Calyx 5-parted ; petals 5 ; styles longer than the stamens ; an- 

 thers with 2 pores at the base before, and the top after, the opening of the 

 flower ; capsule 5-celled, dehiscent at the angles near the base. 18. 51 

 (shin-leaf). -S'. 



CHIMAFH"ILA. Calyx 5-parted ; petals 5 ; anthers beaked, with 2 pores at 

 the base before, and at the top after, the opening of the flower ; style immer- 

 sed ; stigma thick, orbiculate ; capsule 5-celled, dehiscent at the angles near 

 the summit. 18. 51 (prince's pine, pipsissiwa). S. 



LEIOPIIYL"LUM. Calyx 5-parted ; corolla flat, 5-parted or 5-petalled ; sta- 

 mens longer than the corolla, with lateral anthers opening longitudinally on 

 their insides ; capsule 5-celled, dehiscent at the top, 5-valved ; valves ovate 

 with margins inflexed, remote, straight ; columella sub-ovate, terete, rugose ; 

 seeds small, not winged (leaves always glabrous). 18- 50 (sleek leaf). 5. 



CLETH"RA. Calyx 5-parted, permanent ; corolla 5-petalled ; style perma- 

 nent ; stigma short, 3 : cleft ; capsule 3-celled, 3-vaIved, enclosed by the calyx. 

 (Spiked). 18. 51 (sweet pepper-bush). S. 



Expti((. 



vJRu'TA. Calyx 5-parted ; petals concave ; receptacle surrounded by 10 

 nectariferous dots ; capsule lobed. (Petals sometimes 4, and stamens 8). 26, 

 81 (rue). 



