6TN0PSIS OF PI^^E6. 347 



cone when they have attained a considerable size ; but 137, IGl, 170 

 acquire broad-formed heads ; the pyramidal form is retained by 142, 

 165, 172 ; some, as 147, 148, are seldom more than bushes. The 

 branches of 139, 163, 173, arc long and pendulous; of 161, 175, spread- 

 hig ; those of 164, 165, 171, have a loose, and 147 a creeping habit- 

 The color in 154 is silvery ; in 161, glaucous ; in 173, 175, light green ; 

 is 152, a somber glaucous green ; and in the others, shades of dark 

 green. The -whole of them thrive iu inferior soils ; 139, 173, in drj-, 

 barren, and sandy soils; 163, 165, 170, 172, in good sandy soils; but 

 the last three in a variety of other soils, if not wet. P. variabilis and 

 Pinaster, vrith its varieties, in sandy soils along the sea-coast, but not in 

 wet or calcareous soils. P. Laricio is of very rapid growth ; P. Pinas- 

 ter, Auslriaca, Pyrenaica, and Pallasiana are also rapidly-growing trees. 

 The timber of 138, 152, 153, 164, 165, 170, 171, 175, is of superior qual- 

 ity. P. Pumilio and uncinaia form good covers for game ; they will 

 grow in verj* elevated situations. Many of the members of this group 

 supply the landscape-gardener with the means of imparting depth of 

 shade to scenery. 



PiNus. — Group 11. Plnca. 



(Leaves in pairs, rarely in threes.) 



176. P. Pinea, h? 50-60 ft. 179. P. Fremontiana, h? 20 ft. 



177. p. Cretica, s h, 40-50 ft. 180. P. cembroides, h? 



178. P. fragilis, « h. 181. P. Llaveana, h? 



This group is a small one ; and from their impatience of cold iu this 

 country, its members seldom rise above the size of large bushes. Pinea 

 and its varieties have a peculiarly flat head, and are of a dark green 

 color. The foliage of 179 and 181 is glaucous, and that of 180 a vivid 

 green. They may be planted a.s shrubs in sheltered places. 



Doubtfxd Species. 

 P. Arabica. P. Finlaysoniana. 



RucoEDtR II. ARAUCARIE^. 

 Gen.l. ARAUCARIA. 

 1. A. imbricata, 100 ft. 

 This remarkable tree is a native of the southern mountains of Chili, 

 and is quit« hardy. It is to be regretted that its congeners, some of 

 which are not less beautiful, are not sufficiently robust to bear our cli- 

 mate out of doors. From the peculiarly rigid and apparently artificiiil 

 habit of A. imbricata, and its singular dark -green foliage, it has alway.«, 

 since its introduction, been a special favorite. Intrinsically a fins 



