CLASSIFICATION 



parted or toothed. Corolla garaopetalous, tubular, funnel-, salver-, or 

 bell-shaped, or rotate, usually 5-lobed, often plaited. Stamens equal 

 in number to the corolla lobes and alternate with them, attached to 

 the tube. 



Genus described. — Datura. 



Nat. Ord. GESNERACEiE. Characters. — Leaves usually 

 opposite, fleshy, wrinkled, without stipules. Flowers hermaphrodite, 

 usually irregular, showy, in racemes, panicles, or solitary. Calyx 

 usually gamosepalous with 5 teeth or lobes. Corolla gamopetalous, 

 tubular, or broadly bell- shaped, usually 5-lobed. Stamens 4 or 2. 

 Ovary 1 -celled. 



Genera described. — Achimenes, Gloxinia, Sinningia, Gesnera, 



N^GELIA, ISOLOMA, GlOXINERA, ISTiPH/EA. 



Nat. Ord. BIGNONIACE^. Characters. — Leaves usually opposite, 

 without stipules. Flowers hermaphrodite, more or less irregular, in 

 terminal panicles. Calyx inferior, gamosepalous, entire, or lobed. 

 Corolla gamopetalous, more or less tubular or funnel-shaped, with 5 

 spreading lobes. Stamens 5 unequal, 1 always (3 sometimes) sterile. 

 Genera described. — Incarvillea, Bignonia. 



Nat. Ord. ACANTHACE^. Characters. — Leaves usually 

 opposite, entire, without stipules. Flowers in branching spikes, 

 usually irregular, hermaphrodite. Calyx usually 5-lobed. Corolla 

 gamopetalous, with cylindrical or inflated tube, and 5 spreading lobes. 

 Ovary 2-celled. 



Genus described. — Erantiiemum. 



Nat. Ord. VERBENACE-^. Characters. — Leaves usually opposite 

 or whorled, often toothed. Flowers usually 2-sexed, often irregular, 

 usually in corymbs. Calyx tubular, 5-lobed. Corolla gamopetalous, 

 4-5 cleft. Fertile stamens usually 4 (2 long, 2 short). Ovary 

 superior. 



Genus described. — MoNOCiliLUS. 



Nat. Ord. LABIATiE. Characters. — Leaves usually opposite 

 or in whorls. Flowers usually irregular, and borne in the leaf-axils. 

 Calyx gamosepalous, ribbed. _ Corolla gamopetalous, 4-5 lobed, 

 usually 2-lipped. Perfect stamens 4 (2 long, 2 short). 



Genera described. — Eremostachys, Phlomis, Salvia. 



Division III. MONOCHLAMYDE^.— Flowers often without 



sepals or petals (calyx and corolla), usually hermaphrodite. 



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