desertorum Rich, 

 discolor, Muhl. 



var. eriocephala, And. 

 Drummondiana, Barratt. 

 flavescens, Nutt. 



var. Scouleriana, Bebb. 



var. temrijulis, And. 

 fulcrata, var. subglauca, And. 

 glauca, L. 



var. villosa, And. 

 glaucophylla, Bebb. 

 herbacea, L. 

 Hookeriana, Barratt. 

 hi.milima, And. 

 humilis, Muhl. 

 lanata, L. 



var. Macouniana, Bebb. N. var. 

 lasiandra, Benth. 



var. lancifolia Bebb. 

 longifolia, Muhl. 



var. argyrophylla, And. 

 lucida, Muhl. 

 macrocarpa, Nutt. 

 myrtilloides, L. 

 nigra, Marsh. 



Novse-Angliae, And., var. myrtilli- 

 f olia, And. 



var. pseudo-cordata, And. 



var. pseudo-myrsinites, And. 

 orbicularis, And. 

 ovalifolia, Traut. 



Pallasii, Anders., var. crassijulis, 

 Anders. 



var. diplodyctya, Anders, 

 petiolaris, Smith. 



var. gracilis, And. 

 phlebophylla, And. 

 phylicoides, And. 

 polaris, Wahl. 

 prolixa, And. 

 reticulata, L. 



var. nivalis, And. 

 Richardsoniana, Hook, 

 rostrata, Rich, 

 sericea, Marsh, 

 sessili folia, Nutt. 



Sitchensis, Sanson. 



var. angustifolia, Bebb. 

 speciosa, Hook. & Arn. 

 tristis, Ait. 

 Uva-ursi, Pursh. 

 vestita, Pursh. 

 viminalis, L. 



EMPETRACE/E. 



CORBMA 



Conradii, Torr. 



EMPBTRUM 



nigrum, L. 



CERATOPHYLLACE/E. 



CER ATOPH YLLUM 



demersum, L. 



CO N I PER /E. 



ABIES 



amabilis, Forbes, 

 balsamea, Marshall, 

 grandis, Lindl. 

 subalpina, Engelm. 



JUNIPERUS 



communis, L. 



var. alpina, Gaud, 

 occidentalis, Hook. 

 Sabina, L., var. procumbens, Ph. 

 Virginiana, L. 



LARIX 



Americana, Michx. 

 Lyallii, Parlat. 

 occidentalis,. Nutt. 



