254. Cyathea wilsonii (Hook.) Proctor, hele- 



cho gigante, tree-fern 



300. Urera caracasana (Jacq.) Gaud., ortiga 



colorada, stinging nettle (not found in recent 



years) 



325. Aniba bracteata (Nees) Mez, canelillo 

 339. Persea urbaniana Mez, aguacatillo 

 341. Phoebe montana (Sw.) Griseb., avispillo 

 353. Prunus occidentalis Sw., almendron, 



West Indies laurelcherry 



417. Bunchosia glandulifera (Jacq.) H.B.K., 



cafe falso 



421. Malpighia fucata Ker, palo bronco 



450. Sapmm jamaicense Sw., tabaiba 



489. Rhamnus sphaerosperma Sw., West 



Indian buckthorn 



510. Ouratea striata (v. Tiegh.) Urban 



511. Cleyera albopunctata (Griseb.) Krug & 

 Urban 



528. Laetia procera (Poepp. &Endl.) Eichl., 

 talantron 



529. Lunania buchii Urban 



593. Conostegia hotteana Urban & Ekman 

 599. Miconia affinis DC, camasey (not col- 

 lected by authors) 



683. Cornutia pyramidata L. (collected in 

 Luquillo Mts. in 1881) 



695. Solarium antillarum 0. E. Schulz 

 724. Exostema sanctae-luciae (Kentish) Brit- 

 ten (collected by Alain Liogier in 1963) 



SUMMARY 



The National Forests contain and preserve 

 trees of many species that are classed as rare 

 or local in distribution within the country. Spe- 

 cial areas within the National Forests give fur- 

 ther protection. Examples are Research Nat- 

 ural Areas, Experimental Forests, Wildernesses, 

 Primitive Areas, Scenic Areas, and Botanical 

 Areas. 



Rare and local trees in the National Forests 

 of continental United States include 14 species 

 of hardwoods and 26 of conifers and several 

 varieties. These are listed with names of the 

 National Forests. 



Additional border or peripheral species from 

 northwestern Mexico, including 12 of hard- 

 woods, extend northward into the Coronado Na- 



tional Forest of southeastern Arizona and south- 

 western New Mexico or beyond. 



A few tree species are rare and local near 

 their northwestern limits within the National 

 Forests of southeastern Alaska. 



The Caribbean National Forest in northeast- 

 ern Puerto Rico contains the largest number of 

 species of native trees anywhere in the National 

 Forest System, 225. Of these, 90 tropical tree 

 species are classed as endemic or rare. 



Nine tree species and 6 additional varieties 

 on preliminary lists of proposed endangered and 

 threatened plant species of continental United 

 States grow wild within the National Forests. 

 This report is the third in a series on rare and 

 local trees. 



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