EXPLANATION OF PLATE IL 
Fig. 1. YUCC-.1 aloifolia. (Family of \\\e Liliaceas.) Adam's Needle. A tree o| 
ten or twelve feet in height, indigenous in the West Indies. Stype cylindric, en^ct, 
sometimes two or three-forked. Leaves terminal, alternate, crowded, semi-amplexi- 
cauli8> ensiforui; the upper ones erect, the lower ones pendent, the intermediate, 
spreading or reflexed. Panicle simple, terminal, pyramidal. Flowers pendent. Peri- 
anth simple, six-sepalled, campanulale. This plant belongs to Hexandria Monogynia. 
It is the majestic lily of the tropics. The name Yucca is from Jucca, the Indian ap- 
pellation. 
Fig. 2. Saccharum o^cinale. (Family of the Grasses.) Sugar-cane. An her- 
baceous, perennial plant, which grows to the height of ten or twelve feet. Culm is 
vertical, cylindrical, solid. Leaves sheathing, elongated, ensiform. Panicle large, 
silky. The name Saccharum is from the A rabic, soukar, sugar. This plant is thought 
to be a native of India, but it is now culiiv. ied in most warm countries. With most 
of the grass-hke plants, it belongs to Triaiidria Digynia. 
Fig. 3. Ferula tingitana. {Faimily of the Umbelli/erce.) Giant-fennel. Herba- 
ceous plant, biennial, 8 or 9 feet in height. Stem cylindrical, vertical. Leaves alter- 
nate large, decompound, with very small leafets. Petioles with a large base, amplex- 
icaulis. Panicle terminal, composed of umbels. This plant grows in Spain and 
Barbarv ; it belongs to Pentandria Digynia, where the umbeUiferous tribe is mostly 
classed. A species of this genus. Ferula assa/aetida, produces from its root the me* 
dicinal gum, assafoetida; from another species, the galbanum is obtained. 
Fig. 4. Cymdidium echinocarpon. (Family of the Orchidecc.) A parasitic plant ol 
Soutn America which grows to the height of two or three feet. Stems compressed. 
Leaves opposite, oval, acute. Capsule bristly. This plant belongs to Gynandrit 
Monandria. A species C* pulchellum (grass-pink) is very common in our region. 
• It may h«» proper to inform the studen.., tnat where several species of a genus are mentioned, it ia veil 
common to aesignate the name of the genus bj the initial letter ; thus C. stands for Cymbidium. 
