Some of these are: Jack pine (Pinus Banksiana), Rocky Mountain pine (Pinus flexilis), black pine (Pinus Murrayana), white spruce (Picea alba), black spruce (Picea nigra), Engelman's spruce (Picea Engelmanni), mountain balsam (Abies subalpina), Douglas fir (Pseudotsuga Douglasii), mountain larch (Larix Lyallis).
The larch becomes predominant chiefly in two new species (Larix sibirica and L.
Boletus edulis, in the Oriental Trehala and in ergot of rye; melibiose, C12H22011, formed, with fructose, on hydrolysing the trisaccharose melitose (or raffinose), C18H32016.5H20, which occurs in Australian manna and in the molasses of sugar manufacture; touranose, C12H22011, formed with d-glucose and galactose on hydrolysing another trisaccharose, melizitose, C,8H32016 2H20, which occurs in Pinus larix and in Persian manna; and agavose, C12H22011, found in the stalks of Agave americana.
larix), a name applied to a small group of coniferous trees, of which the common larch of Europe is taken as the type.
The members of the genus Larix are distinguished from the firs, with which they were formerly placed, by their deciduous leaves, scattered singly, as in Abies, on the young shoots of the season, but on all older branchlets growing in whorl-like tufts, each surrounding the extremity of a rudimentary or abortive branch; they differ from cedars (Cedrus), which also have the fascicles of leaves on arrested branchlets, not only in the deciduous leaves, but in the cones, the scales of which are thinner towards the apex, and are persistent, remaining attached long after the seeds are discharged.