1068 ARBORETUM ET FRUTICETUM BRITANNICUM. 
gether. Pollen in 5 cases, Ovules 2. Leaves linear, in 2 ranks, de« 
ciduous in the only species yet introduced. 
Juni’FERUS. Male catkins terminal, female ones axillary, few. Pollen in 
3 to 6 cases. Ovule one. Fruit pulpy. Leaves opposite or ternate, rigid. 
Genus VIII. : 
nin 
THUYA L. Tue Arsor Vita. Lin. Syst. Monce‘cia Monadélphia. 
Identification. Lin. Gen., 1078.; Juss., 413. ; Lamb. Pin., ed. 2., 2. 
Synonymes. Thuya, or Arbre de Vie. Fr. ; Lebensbaum, Ger. ; Tuja, Ital. 
Derivation. From thyon, sacrifice; in consequence of the resin of the Eastern variety being used 
instead of incense in sacrifices. Why it was called Arbor Vite is uncertain. Parkinson says the 
American species was presented to Francis I. under this name, and that it has been continued 
ever since, though for what reason he knows not. Jt was called the Arbor Vite by Clusius. 
Royle mentions that, in the East, the cypress is called the tree of life ; and that its berries, &c., are 
considered a cure for all diseases. 
Gen. Char. Male flowers in a terminal solitary catkin. Pollen of each flower 
included in 4 cases, that are attached to the inner face of the scale, towards 
its base.— Female flower in terminal catkins. Ovary connate with the 
bractea; the two conjoined may be termed a receptacle. Ovules 2 to each 
receptacle. Receptacles semi-peltate, imbricated, smooth, or, in some, having 
a recurved beak near the tip. Seeds inconspicuously winged, or not winged. 
Cotyledons 2. Branchlets compressed. 
Leaves simple, alternate or opposite, exstipulate, evergreen ; 2-rowed, 
scale-like, closely imbricated, compressed. Flowers yellowish.—Trees nar- 
row, pyramidal, and evergreen ; or large fastigiate shrubs ; natives of Asia, 
Africa, and North America, and for the most part hardy in British gardens. 
The species have been divided by Professor Don into the following sec- 
tions :— 
i. Thuje vére. Cones oblong-compressed ; scales consisting of a definite 
number (4 or 6), coriaceous, smooth, with one tubercle under the 
apex ; two exterior ones shortened, boat-shaped. Seeds compressed, 
winged. To this belong T. occidentalis L., J. plicata Donn, and T.. 
chilénsis D. Don. In T. occidentalis the seeds are flattened, winged 
all round, emarginate at the apex. 
ii. Biota, Cones roundish, squarrose; scales indefinite in number, peltate, 
woody. Seeds bellying, crustaceous, without wings. To this belongs 
T. orientalis L. 
iii, Cyparissa. Cones roundish ; scales indefinite in number, peltate, woody. 
Seeds winged at the apex. To this belong Z. cupressdides L., T. 
pénsilis D. Don, and 7. péndula D. Don. 
§i. Thije vere. 
2 1. T. occrpenra‘iis L. The Western, or American, Arbor Vite. 
Identification, Hort. Cliff., 449. ; Pursh Fl. Amer. Sept., 2. p. 646. ; Michx. N. Amer. Syl., 3. p. 226. 
Synonymes. Thija Theophrast? Bauh, Pin. 488.; A’rbor Vite Clus. Hist. 1. p. 36.; white Cedar 
Amer. ; Cédre américain, Cédre blanc, Arbre de Vie, Fr.; gemeiner Lebensbaum, Ger.; Albero 
de Vita, Ital. 
Engravings. Michx. Arb., 3. t. 29. ; the plate of this tree in Arb. Brit., Ist edit., vol. viii. 3 and our 
Jig. 1991. ‘ 
Spec. Char., §c. Branchlets 2-edged. Leaves imbricated in 4 rows, ovate- 
rhomboid, adpressed, naked, tuberculated. Cones obovate ; interior scales 
truncate, gibbous beneath the apex. (ild.) A moderate-sized evergreen 
tree, or large shrub. Canada. Height 40 ft. to 50 ft. In cultivation in 
England since 1596, Flowering in May, and ripening its cones in the 
following autumn. 
