orbicularis, And. 

 ovalifolia, Traut. 

 petiolaris, Smith. 



var. gracilis, And. 



var. subsericea, And. 

 phlebophyl la, And, / X h&U^ 

 phylicoides, And. f ' / 

 prolixa, And. 

 purpurea, L. 



var. gracilis, And. 



var. Helix, Koch. 



var. Lambertiana, Koch. 

 reticulata, L. 



var. nivalis, And. 

 Richardsoniana, Hook, 

 rostrata, Rich, 

 rotundifolia, Traut. 

 sericea, Marsh, 

 sessilifolia, Nutt. 



var. Hindsiana, And. 



var. villosa, Nutt. 

 Sitchensis, Sanson. 



var. angustifolia, Bebb. 



var. congesta, And. 



var. (?) Coulteri, Bebb. 



var. denudata, And. 

 speciosa, Hook. <fe Am. 

 subcordata, And. 

 taxifolia, HBK. 

 tenera, And. 

 tristis, Ait. 

 Uva-ursi, Pursh. 

 venusta, And. 

 vestita, Pursh. 

 viminalis, L. 



HYBRIDS. 



frhgilis x alba, Wimmer. 

 va^veptita, Win 



% Wimmer. 

 lerea x vtn),fnaMs,,Wihmier. 

 ( lucjda, P^eb^. \ 



/cordata X sericeaf Pebb. \ 

 petiolaris x Candida, Bebb. 

 sericea xcajidida, Bebb. 

 cordata x Candida, Bebb. 



EMPETRACEiE. 



CERATIOLA 



ericoides, Michx. 



COREMA 



Conradii, Torr. 



EMPETRUM 



nigrum, L. 



' CERATOPHYLLACEiE. 



CERATOPHYLLUM 



demersum, L. 



GNETACEiE. 



EPHEDRA 



antisyphilitica, C. A. Meyer 

 Californica, Watson. 

 Nevadensis, Watson, 

 pedunculata, Engelm. 

 Torre yana, Watson, 

 trifurca, Torr. 



CONIFERS. 



ABIES 



amabilis, Forbes, 

 balsamea, Marshall, 

 bracteata, Nutt. 

 concolor, Lindl. 

 Fraseri, Lindl. 

 grandis, Lindl. 

 magnifica, Murray, 

 nobilis, Lindl. 

 subalpina, Engelm. 

 var. fallax, Engelm. 



CHAM^ECYPARIS 



Lawsoniana, Parlat. 

 Nutkaensis, Spach. 

 sphasroidea, Spach. 



CUPRESSUS 



Arizonica, Greene. 

 Goveniana, Gordon. 

 Gnadalupensis, Watson. 

 Macnabiana, Murr. 

 macrocarpa, Hartw. 



JUNIPERUS 



Californica, Carr. 



var. Utahensis, Engelm. 

 communis, L. 



var. alpina, Gaud, 

 pachyphloea, Torr. 

 occidentalis, Hook. 



var. conjugens, Engelm. 



var. monosperma, Engelu 

 Sabina, L. 



