PINUS 177 



Native of Mexico, Arizona, and Lower California ; introduced by Hartweg 

 in 1839. The seeds are sold in Mexican markets as " pinones " along- with 

 those -of P. edulis, to which the present species is closely allied. The leaves 

 of that species, however, are chiefly in pairs instead of threes ; the branches 

 are stouter, and the leaves usually thicker. These two are the only pines with 

 two or three leaves in a cluster that have rosette-like leaf-sheaths. 



P. CONTORTA, London. BEACH PlNE. 



A tree 20 to 30 ft. high in a wild state, but apparently likely to grow higher 

 in cultivation ; bark thick, roughly fissured ; young shoots often curiously 

 twisted, not downy ; terminal buds narrowly cylindrical, f to I in. long, 

 resinous. Leaves in pairs, IT? to 2j ins. long, -jW in. or less wide ; dark green ; 

 persisting three, four, or more years ; leaf-sheath fy in. long, persistent. 

 Cones obliquely conical, up to 2 ins. long, f in. wide at the base before 

 expanding ; the scales terminated by a slender spine which wears away in 

 time. The cones remain on the tree for four or five years, or even longer, 

 before shedding their seed. 



Native of the coast region of Western N. America, from Alaska to 

 S. California ; discovered by Douglas in 1825 ; introduced later at some 

 uncertain date. (See also P. Murrayana.} 



P. COULTERI, D. Don. COULTER'S PINE. 



A tree 50 to 80 ft. high, with a stout, erect trunk, 3 to 4 ft. in thickness, 

 whose bark is divided into deep broad ridges. Young shoots very thick, often 

 glaucous, not downy ; the terminal part carrying a cluster of crowded leaves, 

 the lower part furnished w r ith fringed, slender-pointed scales, I in. long. The 

 older portions of the branchlet are rough with the remains of these scales, and 

 the prominences on which the leaf-bundles were seated. Buds conical, 

 resinous, slender-pointed, IT^ ins. long, f in. wide. Leaves in threes, 'falling 

 the fourth year; 10 to 12 ins. long, minutely toothed, grey-green, with lines 

 of stomata on all three faces ; leaf-sheaths persistent, I in. long. Cones 

 10 ins. to 12 ins. long, 5 to 7 ins. thick ; the scales terminated by a stout 

 triangular spine. 



Native of California ; discovered by Dr Coulter in 1832 ; introduced by 

 Douglas the same year. The cones of this remarkable pine are the heaviest 

 and most formidably armed among three-leaved pines, but are not often borne 

 in this country. It resembles P. ponderosa in leaf and shoot, but is a shorter 

 tree with more spreading branches. The cones are very different, and more 

 like those of P. Sabiniana; which, however, has smoother, more slender shoots, 

 and greyer leaves. Coulter's pine is not common in cultivation, but is very 

 striking in its somewhat gaunt branching, and terminal' bunches of leaves, 

 spreading like a sweep's brush. (See plate, Vol. i., p. 8.) 



P. DENSIFLORA, Siebold. JAPANESE RED PINE. 



A tree 100 to 120 ft. high in Japan, with a trunk 3 to 4 ft. through ; bark 

 of trunk reddish, scaling ; young shoots blue-white, smooth ; buds cylindrical, 

 brown, resinous. Leaves in pairs, falling the third year, 2% to 4 ins. long, 

 slender, dark green on both surfaces, margins very minutely toothed ; leaf- 

 sheath j to in. long, persistent, terminated often by one or two slender 

 threads. Cones i| to 2 ins. long, f to i in. wide before expansion, conical, 

 pointed ; seed in. long, with a wing about thrice as long. 



Introduced by Siebold from Japan to Europe in 1854. It is a useful timber 



