342 
CLASS XX.— XXI. ORDER I. 
CLASS XX. DIOECIA. 
Order 2. Diandria. 
Salix. Staminate flowers — ament cylindric: calyx a 1-flowered scale, 
with a nectariferous gland at the base : stamens 1 to (i. Pistillate flowers — 
ament and calyx like the staminate : stigmas 2 : generally 2-cleft : capsule 
I-celled, 2-valved : seeds many, with egret-like down. 50. 99 — (willow.) S’. 
Pbax 'inus. Polygamous. Perfect flowers — calyx 0, or 3 or 4-parted : co- 
rolla 0, or 4-petalled : pistil 1 : samara 1-seedcd, with a lanceolate wing. Pis- 
tillate flowers — calyx, corolla, and pistils same as perfect. 44. 37 — (ash.) S. 
Order 3. Triandria. 
Exotic. 
Ficus. Common receptacle fleshy, (becoming the fruit,) enclosing the ape- 
talous florets ; both staminate and pistillate, either in the same, or in distinct 
individuals. Staminate flowers — calyx 3-parted. Pistillate flowers — calyx 
5-parted : pistil 1, lateral : seed 1, covered with the closed, permanent, some- 
what fleshy calyx. 53. 98 — (fig-tree.) 
Order 4. Tetrandria. 
Viscum. Staminate flowers — calyx 4-partcd : corolla 0: anthers sessile, 
adhering to the calyx. Pistillate flowers — calyx 4-leaved, superior : corolla 
0 ; style 0 : berry 1-seeded, globose ; seed cordate ; (parasitic, adhering to 
trees,) 43. 58 — (misseltoe.) S. 
Order 5. Pentandria. 
Zanthox"ylum. Staminate flowers — calyx 5-parted ; corolla 0 ; stamens 3 
to 6. Pistillate flowers — pistils 3 to 5 ; capsules equal to the number of pistils, 
1- seeded. 46. 94 — (prickly ash, or tooth-ache tree.) S. 
Hum"ulus. Staminate flowers — calyx 5-leavcd j corolla 0 ; anthers with 2 
pores at the extremity. Pistillate flowers — calyx 1-leafed, entire, oblique, 
spreading ; styles 2 ; seed 1, within the leaf-like calyx ; inflorescence strobile- 
form. 53. 98 — (hop.) S’. 
Exotic. 
Can”naris. Staminate flowers — calyx 5-parted. Pistillate flowers — calyx 
5-leaved, entire, gaping laterally ; styles 2 ; nut 2-valved, within the closed 
calyx. 53. 98 — (hemp.) 
Spina'cia. Staminate flowers — calyx 5-parted ; corolla 0. Pistillate flow- 
ers — styles 4 ; seed 1, within the indurated calyx. 12. 29 — (spinach.) 
Order 6. Hexandria. 
Smi'lax. Staminate flowers — calyx 6-leaved ; corol 0 ; anthers adnate to 
the filaments. Pistillate flowers — style minute ; stigmas 3 ; berry 3-celled, 
superior, 1 — 3-seeded. 11. 12 — S. 
Order 8. Odandria. 
Po pulus. Staminate flowers — ament cylindric, calyx a torn scale : corol- 
la turbinate, oblique, entire, supporting 8 to 30 stamens. Pistillate flowers — 
ament, calyx and corolla like the staminate : stigma 4 or 6-lobed : capsule 
2- celled, 2-valved, many-seeded : seed with egret-like hairs. (Leaves having 
a tremulous motion.) 50. 99 — (poplar, balm of Gilead.) & 
Order 12. Pohjandria. 
Menisper"mum. Staminate flowers. — Calyx 2-bractcd, about 6-leaved, ca- 
ducous ; petals 6 — 9, glandular, minute, refuse ; stamens 16 — 24 ; anthers ad- 
nate to the filaments, 4-lobcd, 2-cclled. Pistillate flowers — Germs and styles. 
3 - 6: drupes mostly solitary, 1-seeded ; nut lunate, compressed. 11.77. S’. 
CLASS XXL CRYPTOGAM! A. 
Order 1. Filices. 
A. Capsule having an elastic ring at right angles with its opening. 
Polypo’dium. Capsules disposed in round scattered fruit dots, (or clusters 
