130 ^ ^-T. ^-^t m m M m js »^^ ix. 



typical form of the present species were of the southern origin. Tliey are said 

 to have come from Nanae near Hakodate. The figure of a matured cone given in 

 liis Monographic dcr Abietinecn shows prominently exserted and recurved greenish 

 bracts — a characteristic of the southern form — whicli arc however strikinglv dif- 

 ferent from the excellent figure of the cone of the type specimen from Saghalin 

 as shown in Fr. Schmidt's Flora Sachalinensis. We are disposed to consider tiie 

 Mayr's form as a good varict)' of the Saghalin F'ir, and have treated it so in 

 the present paper under the name, the var. iMayriajia. 



The difference between the var. typica and var. Mayriana is so prominent in 

 many points that some day after more careful studies we may be induced to regard 

 them as two distinct species. Full descriptions of matured cones and seeds of both 

 varieties are given for comparison respectively under each variety. 



In the var. typica, the relative length of the cone-scales and bracts, and the de- 

 gree of the reflexion of the latter are quite variable, but the bracts are never so 

 much exserted and reflexed as in the case of the var. Mayriana. In the extreme 

 cases the bracts are completely included, or their ta})ering points only are slight- 

 ly exserted. Such a case corresponds to the Mayr's var. ncinoreiisis, which is very 

 rarely met with. 



One of us even after a careful search for this extreme form in the Province of 

 Nemuro in the siunmer of 1917 could not find even one tree which showed entirel\' 

 this character, except in one case in the Kombumori National Forest in the Pro- 

 vince Nemuro, where he found some trees in which both included and exserted 

 bracted cones were found together on the same tree. The Mayr's var. jiejnorensis, 

 which has been a source of great trouble and confusion to both botanists and fore- 

 sters should be erased as a rare extreme variation of the species, under considera- 

 tion. 



A distinguishing character between the two varieties of Abies sachalinensis 

 seems also to be found in the shape of the leaves on the cone-bearing branches. 

 In the v\ir. typica, the tip of the leaf is acute or mucronate, while that of the var. 

 Mayi'iana is emarginate or rounded. 



The color of the wood in the var. typica is usually more or less tinged with a 

 reddish color, while that of the var. Mayriana seems to be always white. The 

 bark of the former is said to be thicker and has a tendency to split longitudinally, 



