recent years. Collected a few miles from Juniper 

 Springs in Marion County within the Ocala 

 National Forest. To be sought within the Osce- 

 ola National Forest. 



Arizona (or Southwestern) 



The National Forests of Arizona contain 2 

 species and 2 varieties of rare and local hard- 

 woods proposed as threatened or endangered. 

 These are listed below. The first has a wider 

 range in 4 southwestern States. Border species 

 on the Coronado National Forest are mentioned 

 separately. 



Knowlton hophornbeam, Ostrya knowltonii 

 Cov. (0. baileyi Rose) . Rare, proposed as threat- 

 ened. Local and scattered in mountains, valleys, 

 and canyons of 4 southwestern States. Guada- 

 lupe Mountains (National Park) in Culberson 

 County, Trans-Pecos Tex. Southern New Mex- 

 ico : Lincoln National Forest, Guadalupe Moun- 

 tains in Eddy County and Sacramento Mountains 

 in Otero County. Northern Arizona: Coconino 

 National Forest, Oak Creek Canyon Natural 

 Area in Coconino County, and Grand Canyon 

 National Park (type locality). Also local in 

 Mohave and Yavapai Counties and to be sought 

 in Kaibab and Prescott National Forests. South- 

 eastern Utah: Manti-LaSal National Forest in 

 San Juan County and various localities along 

 Colorado River in San Juan, Kane, Garfield, and 

 Grand Counties. 



Lowell ash, Fraxinus anomala Torr. var. 

 lowellii (Sarg.) Little (F. lotvellii Sarg.). Rare, 

 proposed as threatened. A shrub or small tree 

 local in mountains, mostly along streams, known 

 only from northern and central Arizona. The 

 range is nearly confined to these National For- 

 ests in the counties indicated : Kaibab (Coconino 

 County) , Coconino (Coconino County) , Prescott 

 (Yavapai County), Tonto (Gila and eastern 

 Maricopa Counties), and Coronado (Graham 

 County) . Also eastern Mohave County. The type 

 locality of this variety is Grand Canyon National 

 Park. 



Fragrant ash, Fraxinus cuspidata Torr. var. 

 macropetala (Eastw.) Rehd. (F. macropetala 

 Eastw.). Rare, proposed as threatened. Shrub 

 or small tree local in mountains and canyons of 

 northern and central Arizona. Kaibab and Co- 

 cocino National Forests and Grand Canyon 

 National Park (type locality of variety) in 

 Cococino County, and Tonto National Forest in 

 Gila County. Also in western Navajo and north- 

 eastern Mohave Counties. Erroneously reported 

 from southern Nevada. 



Goodding ash, Fraxinus gooddingii Little. 

 Rare, proposed as endangered. A small tree rare 

 and local in Sycamore Canyon within Goodding 

 Natural Area, Coronado National Forest, on the 

 Mexican border in Santa Cruz County, southern 

 Arizona. Discovered in 1934 and named in 

 1952. This is the type locality and only one 

 known in the United States. Also in mountains 

 of adjacent northeastern Sonora. 



Another rare shrub or small tree proposed as 

 threatened should be noted. Vauquelinia pauci- 

 flora Standi, is known in the United States only 

 from the type locality near Guadalupe Canyon, 

 Cochise County, in extreme southeastern corner 

 of Arizona along the Mexican border. This stand 

 is at a lower altitude near but outside the 

 boundary of a division of the Coronado National 

 Forest and earlier was cited from Sonora and 

 New Mexico (Wells and Johnson 1964). The 

 same or a closely related species has been found 

 in adjacent northern Mexico. 



California 



The rare and proposed endangered tree spe- 

 cies of California are mostly outside the Na- 

 tional Forests except for several conifers listed 

 here. Two hardwood species have local dis- 

 tribution in National Forests of southwestern 

 California. 



California walnut, Juglans califomica S. 

 Wats. Common locally in oak woodland of coastal 

 southern California from Santa Ynez Mountains 

 southeast to Santa Ana Mountains (Griffin and 

 Critchfield 1972, map 30). Apparently within 

 Los Padres National Forest in Santa Barbara 

 and Ventura Counties and within Cleveland Na- 

 tional Forest in Orange and Riverside Counties. 

 Introduced and becoming established beyond 

 the natural range. 



Engelmann oak, Quercus engelmannii Greene. 

 This medium-sized tree has a limited distribu- 

 tion in hills and coast range in 4 counties of 

 southwestern California and adjacent north- 

 western Baja California (Griffin and Critchfield 

 1972, map 71). Angeles National Forest in Los 

 Angeles County, San Bernardino National For- 

 est in Riverside County, and Cleveland National 

 Forest in Orange, Riverside, and San Diego 

 Counties. 



Northwestern 



River willow, Salix fluviatilis Nutt. The only 

 tree species of Northwestern United States pro- 

 posed as threatened. A shrub or small tree, rare 



