466 A HANDBOOK OF CONIFER.E 



Lambert's garden at Boyton, Wilts. Other plants were raised 

 from seed sent home by Hartweg in 1839, It is only suitable for 

 the warmer parts of the country. 



Shaw, Pines of Mexico, 16 (1909). 



Pinus Thunbergii, Parlatore. (Fig. 101.) 

 Black Pine. 



Pinus Massoniana, Siebold and Zuccarini (not D. Don., nor Gordon) ; 

 P. Pinaster, Loudon (not Solander) ; P. sylvestris, Thunberg (not Linnaeus, 

 Loureiro, nor Miller) ; P. tabulaeformis, Hort. Kuro-matsu. 



A tree up to 130 ft. high and 20 ft. in girth in Japan, with 

 stout short twisted branches forming an irregular crown. Bark 

 greyish brown, deeply fissured. Young shoots light brown, 

 glabrous, ridged, with the scale leaves persisting during the first 

 year. Older branches roughened by leaf scars. Winter buds 

 ovoid, sharply pointed, ^-f in. long, greyish white with closely 

 pressed scales. Leaves in pairs, persisting for 3 years, densely 

 crowded on the branchlets, more or less spreading, rigid, and 

 twisted, 3-4 in. long, margins finely toothed, apex a stiff fine 

 point ; stomatic lines on each surface ; resin canals median ; basal 

 sheath | in. long, ending in two long filaments. Cones sub-terminal, 

 spreading, solitary, a few together, or in large clusters of 40-60, 

 ovate or ovate-conic, about 2 J in. long, stalks short ; scales 

 wedge-shaped, the exposed portion nut or reddish brown, flat or 

 curved, transversely keeled, with a minute, often rudimentary, 

 prickle. Seed up to | in. long with a narrow wing about f in. in 

 length. The inflorescences occasionally bear a combination of 

 male and female cones. 



P. Thunbergii is readily distinguished by its conspicuous 

 white buds and rigid leaves. The long filaments of the basal 

 sheath are common to this species and P. densiflora. 



Native of Japan, where it has been so widely cultivated from 

 early times that its original geographical range is difficult to 

 define. According to some authorities it is only known in the 

 wild state on the eastern coast. 



Two varieties have been introduced, neither of any decorative 

 importance : — 



Var. aurea. 



Clusters of golden leaves appear amongst those of normal 

 colour. 



Var. variegata. 



Some of the leaves are variegated with pale yellow. 



Wood very resinous with prominent resin ducts, coarser but 

 very similar to that of P. densiflora, heart wood reddish, sap wood 

 yellow. It works well, has good lastmg qualities and is adapted 



