

172 DE. MAXWELL T. MASTERS's CONTRIBUTION'S 



deep purple, 4 and sometimes 5 inclies long, 2 to 2| inches in 

 diameter, slightly taperuig to a retuse tip ; scales in f ^ order, 

 not much "broader than high, their bracts often more than half as 

 long as the scale, obovate, abruptly acuminate, deep purple 

 upwards. "Wings of seeds obliquely cuneate, as long as wide, or 

 longer (fig. 2). 



Fig. 2. 



Ahies a/nabiUi^.—Brtici, scale, and seed. (From a sketch by Br, Engelmann.) 



a 



A. gi^andis^ which is common on the low lands along the rivers 

 in Oregon, "Washington Territory, and the southern parts of 

 British Columbia, and abnormally ascends, has lighter-coloured, 

 usually longer, and always less crowded (distichous, with 2-4 

 ranks of shorter leaves on the upper side of the branchlets), also 

 without stomata above, more deeply emarginate on tlie branches, 

 obtuse or very shortly cuspidate on the fertile branchlets, acute 

 or acuminate only on the leaders ; cones 3-4 inches long, 1| inch, 

 or scarcely more, in diameter, apple-green, and usually less 

 resinous ; scales much broader than hi^h, their bracts about one 

 third the length of the scale, obcordate or retuse mucronate, light 

 green ; wings of seeds hatchet-shaped, wider than long. 



" A. amabilis has the purple cones and sharp-pointed leaves 

 (on fertile branches) of A. sulalpina j but this latter has not such 

 crowded leaves, much smaller cones, and is especially distinguished 

 by the parenchymatous resin-ducts. A. suhalpina, common in 

 the E9cky Mountains, has beeu found also in Oregon (probably 

 only east of the Cascades) and northward, but we have not as yet 

 met with it here. 



" We send a photograph of a cone-bearing branch (woodcut, 

 fig. 1), and slightly smaller than natural, one of a sterile branch 

 of an old tree (PI. II.) ; on the latter may be seen the crowded 

 arrangement of the leaves ; on the former the shape of the cone 

 and the sharp-pointed leaves at its bases. It will thus appear 

 that Lambert's figure of the cone-scale and bract of his Ahies 



r- \ 



