PENTANDRIA MONOQYNIA. LXYii 



B. FLOWERS INCOMPLETE, a. Ovary superior. 



ANTCHIA. Sepals 5, connivent, subcucullate and callous at apex. 

 Corolla none. Utricle minutely verrucose. ORD. XVI. CARYO- 



PHYLLACEAE. p. 34. 



b. Ovary inferior. 



COMANDRA. Calyx campanulate, 5-cleft, lined with a 5-lobed disk. 

 Stamens inserted between the lobes of the disk ; anthers connected 

 with the calyx-segments by a tuft of threads ! Fruit dry and nut- 

 like, 1-seeded. ORD. LXXXIII. SANTALACEAE. p. 253. 



NYSSA. Dioicously polygamous: STAM. FL. Calyx 5-parted. 

 Stamens 5, to 10, or 12, inserted round a peltate disk. PISTIL. FL. Calyx 

 5-cleft. Stamens 5, or wanting. Style mostly revolute. Drupe 

 oblong-oval. ORD. LXXXII. NYSSACEAE. p. 253. 



[Acer rubrum, and dasycarpum. Negundo. ORD. XXVIII. ACERACEAE. p. 46.] 



[Cassia nictitans. ORD. XXXIV. LEGUMINOSAE. p. 69.] 

 [Prinos verticillatus. ORD. LV. AQUIFOLIACEAE. p. 175.] 



Order 2. Uigynia. 



A. OVARY SUPERIOR. 1. Flowers complete. 

 a. Corolla monopetalous. f Fruit a Capsule. 



GENTIANA. Calyx 4- or 5-cleft. Corolla 4- or 5-lobed, usually 

 with intermediate plaited folds which bear appendages at the sin- 

 uses. Capsule oblong, 1 -celled, 2-valved, many-seeded. ORD. 

 LXXl. GENTIANACEAE. p. 230. 



CUSCUTA. Calyx 4- or 5-cleft. Corolla globose-urceolate. Stamens 

 with a scale-like, often fringed, appendage at their base. Capsule 

 globular, circumscissed or indehiscent, 2-celled, 4-seeded. ORD. 

 LXIX. CONVOLVULACEAE. p. 223. 



ft Fruit a Follide: Of ten in pairs. 



APOCYNUM. Calyx 5-parted. Corolla campanulate, 5-lobed, with 

 5 triangular appendages in the throat, opposite the lobes. Anthers 

 slightly adherent to the stigmas. Follicles in pairs, rigid and slender. 

 Seeds imbricated, comose. ORD. LXXII. APOCYNACEAE. p. 232. 



ASCLEPIAS. Calyx deeply 5-parted. Corolla 5-parted, reflexed. 

 Crown of 5 hooded lobes, each containing a horn-like incurved 

 process. Anthers adherent to the angular stigma, the cells opening 

 perpendicularly, with rigid wing-like margins ; each cell contain- 

 ing a flattened pearshaped waxy pollen-mass the two contiguous 

 pollen-masses of adjacent anthers forming pairs, which hang by 

 their slender summits from 5 small cloven tubercles, or glands, at 

 the angles of the stigma. Ovaries in pairs, one of them usually 

 abortive. Follicle somewhat ventricose, acuminate, soft. Seeds 

 imbricated, comose. ORD. LXXIII. ASCLEPIADACEAE. p. 233. 



ACERATES. Characters nearly those of Asclepias, but the pollen- 

 masses more slender, and the hooded lobes of the crown destitute of 

 the horn-like process. ORD. LXXIII. ASCLEPIADACEAE. p. 236. 



