m 



PIKACE^. 



and althongli somewliat too tender and delicate in constitution, yet, 

 in a good healthy soil, warm locality, or well sheltered situation, it will 

 stand an ordinary English winter. Its under leaves are covered with 

 a glaucous bloom, while the upper ones are bright glossy green in 

 colour. 



LiBOGEDRUS TetRAGONA : The Tetragonal. 



This tree in its native habitats, the Andes of Chili and Patagonia, 

 and Yaldivia, is to be found a pretty bush or a stately tree, ranging 

 from ten to one hundred feet in height. It forms a more horizontal, 

 four-sided, and irregular-branched plant than Chili ensis, and its foliage 

 and spray are less glaucous and silvery, and somewhat lighter green 

 coloured. Like its congeners, it requires the best soils, warmest 

 localities, and most sheltered situations to ensure its growth in this 

 country. 



Sub. § 3. Thuja : The Occidental Arbor-Yitae. 



From Greek S-ua, (thua) arbor ^ ^voq^ (thuos) odor : — from its being 

 ever fresh and fragrant, and evergreen and verdant. 



Flowers, male and female, on the same plant, but separate. 



Leaves, very smaU scale- like formations of various shapes : awl- 

 like, angular, rhomboid, flat, lanceolate, thick, sharp-pointed, blunt- 

 pointed, or rounded ; of various sizes, from one-tweKth to three-eighths 

 of an inch long, by one-twenty-fourth to one-eighth of an inch broad : 

 all of them more or less imbricated and disposed in four rows : seed- 

 leaves generally in twos. 



Cones, generally oblong, from one-half to one inch long, and from a 

 quarter to half an inch broad : scales fleshy, double-margined, blunt- 

 pointed, but somewhat reflexed at apex. Seeds angular, soft, and 

 their wing transparent and elliptical : the scales are from four to eight 

 in number, and unequal in size ; and the seeds are generally two under 

 each scale. 



This Sub-Section includes the Occidental or Western Arbor- Yitaes : 

 and all the species and quasi-species thereof are natives of western and 

 northern regions of the globe. Consequently, all of them are perfectly 

 hardy, sturdy, strong constitutioned, and quite at home in the British 

 Isles. Few if any of them are capricious as to soil or situation, nay, 

 they are rather accommodating, doing well in almost every description 

 of soil if in a healthy condition ; and in any situation where plants or 

 trees will grow : most of them, however, prefer and luxuriate in a rich, 

 moist, loamy soil, and sheltered situation. 



Their timber is, with few exceptions, tolerably good ; but most of 



