cxxxii CLASSES, &c. AND GENERA ARRANGED, 



Styles two. Nut egg-shaped, angular, naked. N. O, Amen- 

 taceae. J.— Page 284. 



Be'tula, Birch. Stamen-bearing flower in a cylindric catkin. Cal. 

 a three-divided (ternate) scale. Cor. none. Stam, ten, to 

 twelve. 



Pistil-hea.ring flower in a catkin. Cal. an imperfectly three-lobed 

 scale, three-flowered. Cor. none. Styles two. Nuts com- 

 pressed, winged (with a membranaceous margin,) one-seeded. 

 N. O. Amentacese. J.— Page 283. 



Arum, Cuckoo-innt Arum. Sheath (spatha) one-leaved, rolled 

 inwards at the base, enclosing a common-stalk, naked above. 

 Cor. none. Spadiv with germens at the base. Stam. stalkless, 

 near the middle of the spadix which is naked above. Berry 

 one-celled, many-seeded, N. O. Aroidese, J. — ^Page 280. 



Order VIL MONADELPHIA. Filaments united below, 



(Pinus, Fir.^ 



Typha. See in Monoecia Triandria, 



Class XXII. DIOECIA. Stamens and Pistils in 

 separate flowers, on different plants. 



In MONANDRIA, 1 Stamen. 

 Several Sdlices, (Willows.) 



Order I. DIANDRIA. 2 Stamens. 



Salix, fPlllow, Sallow, and Osier. 



By Osiers are meant, in general, the naiTow-leaved willows^ 

 with long, bending twigs : by Sallows, those with broadish, in- 

 versely egg-shaped, or rounded, downy leaves, silky catkins, and 

 two yellow stamens in each floret. 



Stamen-bearing flower. Catkin tiled. Scales of the catkin one- 

 flowered, with a honey-bearing gland, or glands, at the base. 

 Cal. a scale. Cor. none. Stam. one to five. 

 Pistil-bearing flower. Stig. two. Caps, superior, one-celled, two- 

 valved, many-seeded. Seeds tufted. For the catkin; scales, 



