is restricted to 9 or more groves in Piute Moun- 

 tains and vicinity, Kern and Tulare Counties, 

 south-central California. Protected within the 

 Piute Cypress Botanical and Natural Area of 

 the Bakersfield District of the Bureau of Land 

 Management and the Sequoia National Forest, 

 also the Bodfish Botanical Area on this National 

 Forest. 



The distribution of 13 of the 26 species of 

 rare and local conifers within the National For- 

 ests has been summarized from the earlier pub- 

 lication. Four other species of pine (Pinus) are 

 cited below under Border Species. 



To complete the list, the remaining 9 species 

 of conifers, local but not rare within 1 or more 

 National Forests, are mentioned here. 



Port-Orford-cedar, Chamaecyparis lawsoni- 

 ana (A. Murr.) Pari.: Klamath, Shasta-Trinity, 

 Siskiyou, Siuslaw, Six Rivers National Forests. 



Ashe juniper, Juniperus ashei Buchholz: 

 Mark Twain, Ozark. 



Pinchot juniper, Juniperus pinchotii Sudw. : 

 Lincoln. 



subalpine larch, Larix lyallii Pari.: 12 Na- 

 tional Forests in mountains of western Mon- 

 tana, northern Idaho, and north-central Wash- 

 ington. 



bristlecone pine, Pinus aristata Engelm. : 

 17 National Forests in high mountains of Colo- 

 rado, New Mexico, Arizona, Utah, Nevada, and 

 California. 



sand pine, Pinus clausa (Chapm.) Vasey: 

 Ocala. 



Coulter pine, Pinus coulteri D. Don: An- 

 geles, Cleveland, Los Padres, San Bernardino. 



southwestern white pine, Pinus strobiformis 

 Engelm.: Apache-Sitgreaves, Cibola, Coconino, 

 Gila, Lincoln. 



California torreya, Torreya calif ornica Torr. : 

 Eldorado, Lassen, Mendocino, Plumas, Sequoia, 

 Sierra, Stanislaus, Tahoe. 



Two other related cypresses are less rare. 

 Arizona cypress (typical) or Arizona rough 

 cypress, Cupressus arizonica Greene var. ari- 

 zonica, is represented within the Coronado and 

 Apache National Forests in Arizona and also 

 Big Bend National Park and 2 National Monu- 

 ments. Arizona smooth cypress, Cupressus ari- 

 zonica var. glabra (Sudw.) Little (C. glabra 

 Sudw.), is within these 4 National Forests of 

 Arizona : Coconino, Kaibab, Prescott, and Tonto. 



Modoc cypress, Cupressus bakeri Jeps., also 

 called Baker cypress and Siskiyou cypress, is 

 known from these 4 National Forests : Lassen, 

 Klamath, and Plumas in northern California 

 and Rogue River in southwestern Oregon. Te- 

 cate cypress, Cupressus guadalupensis S. Wats. 

 var. forbesii (Jeps.) Little (C. forbesii Jeps.), 

 has several groves in southern California and 

 northwestern Baja California. One grove is in 

 the Cleveland National Forest. MacNab cypress, 

 Cupressus macnabiana A. Murr., the most widely 

 distributed cypress in California, is recorded 

 from more than 30 groves in the northern part 

 of the State. One grove is within the Mendocino 

 National Forest. Sargent cypress, Cupressus 

 sargentii Jeps., the second most widely distrib- 

 uted cypress in California, has about 20 groves 

 in the coast ranges and is within 2 National 

 Forests, Mendocino and Los Padres. 



BORDER SPECIES IN THE CORONADO NATIONAL FOREST 



Numerous plant species with ranges chiefly 

 in Mexico extend northward across the border 

 into the southern portions of Texas, New Mex- 

 ico, Arizona, and California. These border or 

 peripheral species by definition are excluded 

 from lists of proposed endangered or threatened 

 species, even though rare or local in the United 

 States. Most of these Mexican plants are from 

 nonforested lowlands and are absent from the 

 National Forests. However, Parry pinyon, Pinus 

 quadrifolia Pari., of northern Baja California, 

 is rare in mountains of southern California, 

 mostly within San Bernardino and Cleveland 

 National Forests. 



The Coronado National Forest within its 11 

 mountainous divisions contains the northern- 

 most individuals of many plant species of the 



Cordillera Occidental of northwestern Mexico. 

 It touches the international boundary in south- 

 eastern Arizona and nearly so in the southwest- 

 ern corner of New Mexico. 



Tree species of Mexican mountains whose dis- 

 tribution in the United States is confined mainly 

 to the Coronado National Forest are listed be- 

 low. These include 3 species of pines and 12 of 

 hardwoods. A few extend beyond in smaller 

 numbers to nearby National Forests. Ranges 

 and other notes are contained in references for 

 tree identification, such as "Southwestern Trees" 

 (Little 1950). 



Mexican pinyon, Pinus cembroides Zucc. (also 

 Apache and Gila National Forests and south- 

 western Texas) 



Chihuahua pine, Pinus leiophylla Schiede & 



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