De I. VNER VEW D Forest Trees of the Pacific Slope

76 FOREST TREES OF THE PACIFIC SLOPE.
Liard, and Francis rivers nearly to Finlayson Lake (lat. 610 35'). Locally noted on
Francis Lake, Francis River at mouth. Reappears in central Alaska (long. 1450 45' to
158' 40') in valley of lower Yukon, upper Koyokuk, Tanana, and Upper Kuskokwim rivers,
extending north to latitude 67' on Koynkuk River and south to headwaters of Kuskokwim
River (lat. 630); extends from river valleys to 1,650 feet. Locally noted on Yukon from
0r
FTI. 28A.-Lritx alaskct)sis: a, fruiting branch ; i), back of cone scale ; c, a cone scale
with ovules; d, bract of cone scale-enlarged; e, bract of cone scale of Larix americata-enlarged.
Kaltag near Norton Bay (long. 158' 4(0' at least up to mouth of Tanana,; Minook Creek
(southern tributary Yukon above Tanttna); upper Koyakuk River from Bettles down at
least to Bergman ; Tanana River and tributaries as follows: Main valley, one patch be'
tween Goodpastor and Salcha rivers (lat. 1450 45', east limit now known). Salcha
River. two patches on small tributaries: Cantwell River, one patch on east side near