24 HORTUS JAMAICENSIS. - arbor 



of the cocoon or antidote, observing that he had made a perfect cure of a girl in the 

 same state. I jjroceeded according to his directions, and with the hke success ; it is- 

 now eighteen months since, and, thanks be to God, she is now in perfect health. I 

 therefore think myself in duty bound to publish the same for the benefit of ray feiiow- 

 creatures." 



APPLE. PYRUS. 



Cl. 12, OR. 4. Icosandria, pentagynia. Nat. OR. Pomaceie. 



The generic name is from a Greek word for fire, as the pear or fruit draws up to 3. 

 point like a flame. 



Gen. char. The calyx is quinquefid ; there are five petals ; the fruit is inferior, 

 quinquelocular, and polyspermous. The tree grows twenty or tliirty feet high, 

 having oval serrated leaves, and sessile umbels of whitish red flowers, succeeded 

 by large roundish and oblong fruit, concave at the base. There are a great many 

 species and varieties, but none yet introduced tlirive well in Jamaica; they dege- 

 nerate and become dwarfish and sour. The best grows in St. Andrew's and Port- 

 Royal mountains, but the trees do not bear many fruit, shooting too much iut 

 wood. The fruit has seldom any seeds. 



See Quince. 



Apricot Sec under Cherry, Bird. 

 A Arabian Costus See CardamoiS. 



ARBOR VIT^. THUJA. 



Cl. 21, OR. 8. Monoscia monoielpMa. Nat. or. Connifcrie. 



Gen. char. ^The calyx of the male flower is a squammse of an amentum ; there is 

 no corolla ; the stamina are four, scarcely manifest In the female flower the calyx 

 is a squammse of the strobilus, and contains two flowers; there is no corolla; the 

 pistil has a small germen, awl-shaped style, simple stigma ; and the seed is sur- 

 rounded with a membranaceous ala. Two species have been introduced. 



1. OCCIDENTALIS. 



Strobiles smooth with blunt scales, branches spreading. 



This, the common arbor vitEc, has a spreading root, and the tree grows to a moderate, 

 height, it was introduced and planted in the botanic garden, Bath, by Dr. Clarke. Jt 

 has a strong woody trunk, erect, and knotty, rising forty feet or more ; the bark, 

 while young, is smooth, and of a dark brown colour, but, as it advances in age, it be- 

 comes cracked. The wood is reddish, firm, and resinous. The branches are ])roduced 

 irregularly on every side, spreading nearly horizontal, and the young slender shoots 

 frequently hang downward, thinly garnished with leaves ; so that when the trees are 

 growl large they make but an indifferent appearance. Tiie young branches are flat,, 

 and their small leaves lie imbricated over each other like the scales of a fish ; the flowers 

 are produced from the sides of the young branches, pretty near to the foot-stalk, they 



are 



