INDEX TO SPECIES DESCRIBED. 



[Roman numerals indicate pages containing descriptions; italic numerals indicate pages containing 



illustrations.] 



Page. 



Abies amabilis 15-16, 15, 16 



grandis 20. 21 



lasiocarpa 19-20, 19 



nobilis 17-19, 17, 18 



Acer circinatum 30, SO 



macrophyllum 29, 29 



Alder, red (Alnus oregona) 30, 31 



Alnus oregona 30, 81 



Alpine fir (Abies lasiocarpa) 19-20, 19 



Amabilis fir (Abies amabilis) 15-16, 15, 16 



Arbor vitae. See Western red cedar. 

 Balsam. See Alpine fir. 



Black cottonwood (Populus trichocarpa) 30- 



32, SI 



Broadleaf maple (Acer macrophyllum) 29, 29 



Cedar, western red ( Thuja plicata) 9-11, 10 



Chamaecyparis nootkatensis 23-24, 23 



Cottonwood, black (Populus trichocarpa) 30- 



32, 31 



Cypress, yellow ( Chamaecyparis nootkatensis) . 23- 



24. 23 



Douglas fir ( Pseudotsuga taxifolia) 6-8, 



7,8,9,10,12,13 



Engelmann spruce (Picea engelmanni) 20-23, 22- 



Fir, alpine (Abies lasiocarpa) 19-20, 19 



amabilis (Abies amabilis) 15-16, 15. 16 



Douglas (Pseudotsuga taxifolia) 6-8, 



7, 8,9,10, It, IS 



grand (Abies grandis) 20, 21 



noble (Abies nobilis) 17-19, 17, 18 



silver. See Fir, amabilis; Fir, grand. 



Grand fir (Abies grandis) 20, 



Hemlock, mountain ( Tsuga mertensiana') 25- 



23,25,26,27 



western ( Tsuga heterophylla}.. . . 11-13, 12, 13, 16 

 Larch. See Noble fir; Amabilis fir. 



Page. 



Lodgepole pine (Pinus contorta) 24-25, 24 



Maple, broadleaf (Acer macrophyllum) 29, 29 



vine (Acer circinatum) 30, 30 



Mountain hemlock ( Tsuga mertensiana) 25- 



21,25,26,27 



Noble fir (Abies nobilis) 17-19, 17, 18 



Oregon yew. See Western yew. 



Picea engelmanni 20-23, 22 



Pine, lodgepole ( Pinus contorta) 24-25, 24 



western white (Pinus monticola) 13-15, 14 



white-bark (Pinus albicaulis) 27-28, 28 



Pinus albicaulis 27-28,23 



contorta 24-25,24 



monticola 13-15, 14 



Populus trichocarpa 30-32,51 



Pseudotsuga taxifolia 6-8, 7, 8, 9, 10, 12, IS 



Red alder (Alnus oregona) 30, 31 



cedar, western ( Thuja plicata) 9-11, 10 



Silver fir. See Amabilis fir; Grand fir. 



Spruce, FJngelmann (Picea engelmanni)... 20-23,22 



Taxus brevifolia 28-29 



Thuja plicata 9-11, 10 



Tsuga heterophylla 11-13, 12, 13, 16 



mertensiana 25-27, 25, 26, 27 



Vine maple (Acer circinatum) 30, 30 



Western hemlock ( Tsuga heterophylla) 11- 



13, 12, 13, 16 



red cedar ( Thuja plicata) 9-11, 10 



white pine (Pinus monticola) : 13-15, 14 



yew ( Taxus brevifolia) 28-29 



White-bark pine (Pinus albicaulis) 27-28, 28 



White pine, western (Pinus monticola) 13-15, 14 



Yellow cypress ( Chamaecyparis nootkatensis) . 23- 



24,23 

 Yew, Oregon. See Yew, western. 



western ( Taxus brevifolia) 28-29 



