EXPLANATION OF PLATE IIL 
Fig. 1. PopvWB fastigiata.* (Family -4mc7ifac6*e.) Dioecious-tree. It wns orgi- 
nally carried from tne Levant into France, and is linown in the United States as tho 
Lombardy poplar. Trunk vertical. Branches erect, fastigiate. The staminate flow- 
ers only are known in this country. 
Fig. 2. Salix babylonica. Weeping-willow. (Family AmentacecB.) A Dicecioua 
tree, growing to the height of 35 feet ; it was originally from the Levant. The fertile 
plant onlv exists in this country. Stem branching ; the branches are supple, pendent. 
Leaves alternate, lanceolate. 
Fig. 3. Chamjerops humilis. (Family of the Palms.) Dioecious tree, whose height 
varies from 4 to 30 feet. It grows in Barbary, Spain, and Italy. Its fruit is called 
wild dates. 
Fig. 4. Mahanta arundinacece. Arrow-root. (Family Cannce.) Perennial plants 
four feet high; native of South America. Stem herbaceous, slender, branching. 
Leaves entire, oval-lanceolate, petioled. Petioles short, sheathing. Flowers termi- 
nal. The root of this plant affords a substance resembling starch m many of its prop- 
erties j this is much valued for its nutritious quaUties. The plant belongs to Monan- 
dria Monogynia. 
Fig. 5. Sarracenia purpurca.t (Family undetermined.) Side-saddle flower j an 
herbaceous plant peculiar to marshes of North America. Leaves radical, ascidiate. 
Calyx five-sepalled. Corolla five-petalled. 
Fig. 6. DiONiEA muscipula. Venus' fly-trap. (Family uncertain.)* Perennial, 
herbaceous. Scape vertical, about eight inches nigh. Leaves radical, radiating from 
the centre, petioled. Petiole cruciform. Leaf round, folds itself up suddenly on being 
touched. Flowers corymbed. Decandria Monogynia. 
Fig. 7. Phallvs impudicus. {Family of the Fungi.) Mushroom called morel. A, 
voung plant still enclosed in its volva. B, a plant perfectly developed; a, volva which 
has burst to make room for the pedicel, b ; c, pileus ; d, umbo, a central part of the hat, 
which is pierced in its turn. 
Fig. 8. Agaeicus cretaceus. (Family of the Fungi.) Mushroom without a volva. 
a, pedicel ; 6, neck ; c, pileus ; d, interior surface, forming a layer for the seeds to rest 
in; c, umbo. 
Fig. 9. Boletus salicinus. Parasite. (Family Fungi.) Pileus dimidiate, sessile. 
♦ The dilUcUa of most authors. 
♦ Lindley establishes a family, Sarraceni/e, in which this is the only genus ; he considers it to be allied to 
PapaveraceeB, on account of its dilated stigma, its indefinite number of stamens, and small embryo lykng at 
the base of copious albumen. He also tlunks it nearly related to Droseraceas, or to whatever family the 
Dionsea may be placed in. The pitcher-form leaf of the Sarracenia is analogous to the dilated foot-stilk of 
tlie pioneea, and the lid of the pitcher in the former leaf is represented by the irritable lamina in the litter. 
In the structure of its leaves, the Sarracenia is related to the family Nepenthes, containing the pi xiW- 
I Refen td by Lindley to Droseraces. 
