EXPLANATION OF PLATE IL 
Fig. 1. Yucca alaifolia. (F'^'amily of Vae. LUiacca:.) Adiirri's Needle. A tree of 
ten or_ twelve feet in Hoisiit, indigenous in the West Indies. Stj^-'e cyiindric, erect, 
sometimes two or three-iorked. Leaves terminal, alternate, crowded, semi-ampiexi- 
caalis, ensiform; the u;-»])er ones erect, the lower ones pendent, the intermediate, 
!=preading or reilexed. Panicle simple, terminal, pyramidal. Flowers pendent. Peri- 
anth simple, six-3opalled, campanulate. This plant belongs to Hexandria Monogynia. 
It is the niujesiic lily of the tropics. The name Yucca is from Jucca, the Indian ap- 
pellation. 
Fig. 2. SAccnARUM officinale. (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 Arabic, soukar, sugar. This plant is thought 
to he a native of India, but it is now cultivated in most warm countries. With rtiost 
of the grass-like plants, it belongs to Triandria Digynia. _ 4 
Fig. 3. F ERVLA tingitana. {Fvajiny 01 ihe Uvibclli/cra2.) Giant-fennel. Herba-| 
ceous plant, biennial, ~8 or 9 feet in height. Stem cylindrical, vertical. Leaves alter-'^ 
nate, large, decom.pound, with very small leafets. Petioles with a large base, amplex- 
icaulis. Panicle terminal, composed of umbels. This plant grows in Spain and 
Barbary ; it belongs to Penfandria Digynia, where the unibelliferous tribe is nrostly 
classed. A species of this genus. Ferula assafcstida, produces from its root the me- 
dicinal gum, assafcetida; from another species, the galbanum is obtained. 
Fig. 4. Cymeidium ec/ii?2oc-Qrpo?i. (Family of the Orchichcc.) A parasitic plant of 
South America which grows to the height of two or three feet. Stems compressed. 
Leaves opposite, oval, acute. Capsule bristly. This plant belongs to Gynandria 
Tdonandria. A species C* pidchellum (grass-pink) is very common in our region. 
* It may he pror^cr to b<Sor^^ tli,-' i^tudent, tlv.it \i':i3re aavcal Kpec,.\>-- of a ennus are mentionefl, it is very 
coinmon to (iGsi;:nate the tiaiiic of the g-emis by the iiULial icMcr ; lii'i.s C. s'ai.'.ls for Cj-nibidiiim. 
