XVI ANALYSIS. 



Perianth 2-5 -leaved, hypogynous, persistent scarious: Stamens 3-5 or nn- 

 merous, hypogynous. Ovary single, superior, 1-celIed, with 1 -ovule, styles 1-3. 

 Seeds pendulous. Herbaceous plants with simple leaves without stipules. 



Genera. Amaranthusp. 295 and 322. Oplothcca 313. Limine 323. Achy- 

 ranthes 323. 



Order 124. Nyctagine-e. Calyx tubular, somewhat curved, contracted in 

 the middle, limb entire or toothed. Stamens definite, 2-4 hypogynous. Ovary 

 superior with a single erect ovule. Style 1. Fruit a utricle, inclosed in the 

 calyx. Herbaceous plants, with opposite and usually unequal leaves. Flow- 

 ers Axillary or terminal, clustered or solitary. 



Genera. Aliionia p. 295. Bcerhaavia p. 295. 



(c) Stamens epigynous. 



Order 132. Aristolochi-«. Flowers perfect. Perianth superior tubular, 

 3-4-cle/t, regular or unequal. Stamens 6-19, epigynous distinct or adhering 

 to the style and stigmas. Ovary inferior 3-6-celled ovules numerous ; style 

 simple, stigmas radiating. Herbaceous plants and shrubs, the latter usually 

 chmbing. Flowers axillary, solitary of a dull color. 



Genera, Aristolochia p. 303. Asarum p. 303. 



Division III. ACHLAMYDE^. 



Sub-Order Myrice.e ") 



Sub-Order Salicine-e ( c!„„ a.v,^„»„^<,.,> ,» ^;,r 



Sub-Order IJetuline.e f' ^^^ Amentaceae p. xiv. 



Sub-Order Platane.^e J 



Order 139. Callitrichine.e. Flowers monoecious, naked with 2 fistular 

 colored bracts. Stamens 1. Anthers reniform, 1 celled. Ovary solitary, 4 

 cornered, 4 celled. Styles 2, subulate. Fruit 4 celled, 4 seeded, indehiscent — 

 Seeds peltate. Aquatic, herbaceous plants, with minute, axillary and solitary 

 flowers. Genus. Callitriche p 311. 



Order 138. Podosteme.^. Flowers naked, perfect. Stamens hypogynous* 

 2 or more, distinct, or monadelphous. Anthers oblong, 2 celled. Ouary 2 or 3 

 celled, wi!h many ovules. Stigmas 2, sessile. Herbaceous, floating plants 

 with capillary leaves. Flowers axillary or terminal, solitary, minute. 



Genus. Podostemon p. 311. 



Order 140. Saurure^. Flowers naked, perfect, seated upon a scale 

 Stamens 6, hypogynous, clavite, persistent. Anthers cuneate. Ovaries 4, dis- 

 tinct, each with a single ovule and a recurved stigma, Herbaceous plants, 

 growing in marshy places. Leaves alternate, stipulate. Flowers in spikes. 



Genus. Saururus p. 312. 



Order 95. Conifere-E. Flowers monoecious, or dioecious. Sterile Flowers 

 monandrous, or monadelphous, collected in a catkin. Anthers 2, or many 

 lobed, bursting outwardly. Fertile flowers usually m strobiles or cones, some- 

 times solitary. Ovary none, or open, resemblins a scale, destitute of style or 

 stigma. Ovules naked, Fruit a naked seed. Trees or shrubs aboundmg in 

 resin. Leaves with parallel veins. 



Genera, Juniperus p.232. Cupressus p. 232. Pinusp. 233. Thuya p. 234, 



Class IT. ENDOGENE^, OR MONOCOTYLEDOXE^. 



Trunk usually cylindrical, with no distinction of bark, 

 wood and pith. Leaves with simple parallel veins, not reti- 

 culated, usually alternate. 



Sub-Class I. PETALOIDE.E. 



Stamens and pistils naked, or enclosed in a regular perianth. 



