THE SILVA OF COLORADO 



28l 



PAGE 



Picea engelmanni 261 



parrayana 261 



Pine 259 



Pinus aristata 259 



edulis 260 



flexilis 259 



murrayana 260 



scopulorum 260 



Poplar 264 



Populus acuminata 266 



angustifolia 266 



balsamifera 266 



sargentii 264 



tremuloides 264 



wislizeni 264 



Prunus americana 274 



melanocarpa 274 



pennsylvanica 274 



Pseudotsuga mucronata . . . 262 



Quaking aspen 264 



Quercus gambelii 269 



PAGE 



Quercus leptophylla .... 269 



nitescens 270 



utahensis 269 



Rhamnus purshiana 278 



Rhus glabra 278 



Robinia neo-mexicana .... 276 



Sabina monosperma 264 



scopulorum 264 



utahensis 263 



Salix amygdaloides 267 



bebbiana 267 



exigua 267 



lasiandra 267 



nuttallii 267 



sessilifolia 267 



Silver spruce 261 



Spruce 261 



Sumac 278 



Thorn 272 



Thornapple 272 



Willow 267 



