182 PINUS 



P. JEFFREYI, Greville. JEFFREY'S PINE. 



(Bot. Mag., t. 8257.) 



So closely allied is this to P. ponderosa that it is very frequently regarded 

 as a variety only of that species. It has the same lofty, columnar trunk 

 (occasionally nearly 200 ft. high), stout branches with clusters of large 

 spreading leaves in bundles of threes at the ends, and an orange-like odour 

 when cut. It differs in the following respects : young shoots of a blue-white 

 colour, leaves stiffer, and the cones much larger, 5 to 10 ins. long, 2 to 

 3 ins. wide, It is confined to California in a wild state, where, in the 

 Shasta Valley, it was discovered in 1852 by Jeffrey, and introduced for the 

 Oregon Association the same year. Jepson says it merges insensibly into 

 P. ponderosa. 



P. KORAIENSIS, Siebold. COREAN PlNE. 



A tree reaching at its best 100 to 150 ft. in height ; young shoots thickly 

 clothed with short, reddish brown wool ; winter buds -J in. long, cylindrical, 

 with a tapered point, resinous. Leaves in fives, persisting to the third year ; 

 3^ to 4-|- ins. long, dark glossy green, with white stomatal lines on two face,s ; 

 margins toothed the whole length, the apex bluntish ; leaf-sheaths about \ in. 

 long, soon falling. Cones about 5 ins. long, 2^ to 3 ins. wide at the base, 

 tapering thence towards the apex. Scales i ins. wide, thick and woody. 

 Seeds in. long, not winged, edible. 



Native of Corea, Japan, Manchuria, etc. ; introduced by J. G. Veitch in 

 1 86 1. It is, perhaps, most closely allied to P. Cembra, but the growth is 

 more open, the leaves are much more spreading, blunter, and toothed quite to 

 the apex. The cones, too, are twice as long. P. koraiensis is not a first-class 

 pine in this country, growing slowly. The best example I have seen is in 

 Mr Hunnewell's garden, at Wellesley, Mass., U.S.A., about 40 ft. high in 1910. 

 There are good specimens at Kilmacurragh and Fota in Ireland, and at 

 Segrez in France, all 35 to over 40 ft. high. 



Var. VARIEGATA, Hort., has some of the leaves yellow, others striped 

 longitudinally in yellow and green, others wholly green- 1 - all sometimes in 

 the same bundle. 



P. LAMBERTIANA, Douglas. SUGAR PINE. 



A tree 70 to sometimes well over 200 ft. high, and with a trunk 3 to 8 ft. 

 in diameter ; young shoots minutely downy ; winter buds J in. long, usually 

 round or blunt at the apex, the scales closely flattened. Leaves in fives, 

 falling the third year ; 3 to 4^ ins. long, minutely toothed at the margins, 

 bluish green^ often spirally twisted ; leaf-sheaths \ to $ in. long, soon falling 

 completely away. Cones borne at the ends of the" uppermost branches ; 1 2 to 

 20 ins. long, about 3 ins. thick before expanding ; the woody scales 2 to 2tt ins. 

 long, with a broadly pointed apex. Seeds ^ to f in. long, nutty in flavour, the 

 wing nearly twice as long. 



Native of Western N. America, in Oregon and California ; introduced in 

 1827 by Douglas, who had also discovered it. It is probably the noblest of 

 all pines. The popular name refers to a sugary exudation from the 

 trunk. In this country it has rarely borne its remarkable cones. It is allied 

 to, as well as a neighbour of, P. monticola, but besides the differences in 

 cones, the buds are more rounded and the leaf is more sharply pointed in 

 Lambertiana. From P. Strobus its uniformly downy shoots distinguish it. It 



