PINACE.E 



281 



paler coloured at maturity than the cone of that species ; scales 

 looser than in L. europcea, with the margins reflexed, but less so 

 than in L. leptolepis, the points of the bracts projecting above 

 the scales. 



A hybrid between L. leptolepis and L. europcea, which first 

 appeared at Dunkcld in Perthshire, the seed-bearers being ten 

 specimens of L. leptolepis raised from seed received from Japan 

 in 1884 and sown in 1885.^ The flowers of these trees appear to 

 be regularly pollinated by L. europcea, and seedhngs are constantly 

 raised. The following diagnostic characters are given by Prof. 

 Henry and Miss Flood. ^ 



L. europaea. 



Twigs— 

 glabrovis 

 yellow 

 no wax 

 Buds — golden 

 brown 

 no resin 

 Scales around terminal 

 bud mucronate 



Pulvini ending at base 

 of axillary bud 



Bracts of yoimg cones 

 pink, straight 



Cones — conical 



scales straight or in- 

 curved, bracts long, 

 exserted, pediuicle 

 yellow 



L. leptolepis. 



Twigs — pvibescent or 

 glabrous 

 red 



much wax 

 Buds — ^red 

 brown 



resinous 

 Scales arotuid ter- 

 minal bud mucro- 

 nate and acute 

 Pulvini overlapi>ing 

 base of axillary laud 



Bracts of yovuig cones 

 greenish , reflexed 



Cones — globose 



scales much re- 

 flexed, bracts short, 

 concealed, peduncle 

 reddish 



L. eurolepis. 



Twigs — glabrous or very 

 slightly hairy 

 yellow 

 slight wax 



Buds — light reddish- 

 brown 

 no resin 



Scales around terminal 

 bud mucronate and 

 acute 



Pulvini slightly over- 

 lapping base of axil- 

 lary bud 



Bracts of young cones 

 pink, reflexed 



Cones — conical 



scales slightly re- 

 flexed, bracts short, 

 but a few exserted, 

 peduncle yellow. 



Under cultivation this larch grows with great vigour, soon 

 outstripping both parents and being so far free from attacks by 

 Chermes and fungi which are so destructive to European larch. 

 One hundred acres of hybrid larch seedlings are said to have been 

 planted at Dunkeld and Blair Athol. 



Larix europaea, De Candolle. (Fig. 64.) 

 Common Larch. 



Larix decidua, Miller ; L. decidua, var. commimis, Henck. and Hochst. ; 

 L. pyramidalis, Salisbury ; L. \Tjlgaris, Fischer ; Larix Larix, Karsten ; 

 Abies Larix, Poiret ; Pinus Iseta, Salisbuiy ; P. Larix, Linngeus. Euro- 

 pean Larch ; Tyrole&e Larch. 



A tree 100-150 or more ft. high with a trunk 6-15 ft. in girth. 

 Bark of young trees thin, greyish, of older trees brown, fissured 



1 Trans. Roy. Scot. Arb. Soc, xxix, pp. 149-156 (1915). 



^ Proc. Roy. Irish Acad, xxxv, Section B, No. 4, p. 58 (1919). 



