CALIFORNIA FOREST FLORA 501 



ROSACEA Rose Family. 



Cherry (Prunus emarginatus walp.) Belden, Feather river 

 canyon. 



"Western Choke Cherry (Prunus demissa Walp.). Common in 

 the Feather river canyon, Belden. 



ACERACEM Maple Family. 



Large Leaved Maple (Acer macrophyllum Pursh). Hand 

 some tree with large leaves, sometimes with a trunk four feet 

 in diameter, sixty-five feet in height. Abundant at Belden, 

 Muir woods, Mill valley, Big Trees, Santa Cruz mountains and 

 San Bernardino mountains. 



Box Elder (Acer negundo L. var. Calif oniicum Sarg.). Com- 

 mon in foothills, Feather river, Yuba City, Marysville and San 

 Bernardino mountains. 



CORNACEJE Dogwood Family. 



Flowering Dogwood (Comas Nattallii Aud.). Feather river 

 canyon, Belden. 



ERIC ACE M Heath Family. 



Madrone (Arbutus menziesii Pursh). The Madrone has a 

 wide range from southern California to Vancouver Island and 

 British Columbia. Lower Feather river canyon, Belden, Big 

 Trees, in the Santa Cruz mountains. 



OLEACEJE Ash Family. 



Oregon Ash (Fraxinus Oregona Nutt.). Common in lower 

 Feather river canyon, Belden, where it occurs on the mountain 

 sides and valleys. 



CAPRIFOLIACE& Honey-Suckle Family. 



Blue Elderberry (Sambacus glauca Nutt.). Lower Feather 

 river canyon, Belden, Big Trees, in the Santa Cruz mountains. 



I am indebted to the Western Pacific Railway for Plates 

 XXXII A, XXXIII and XXXIV from the Feather river Can- 

 yon and to the Southern Pacific Railway for Plates XXXV and 

 XXXVI. Plate XXXV shows the Redwood in the big tree grove 

 in the Santa Cruz mountains. 



For photographs illustrating the Libocedrus, the Valley Oak 

 and Jeffrey Pine, I am indebted to the U. S. Forest Service. 



Department op Botany. 

 Iowa State College. 



