Myrcianthes fragrans (Sw.) McVaugh, rwinberry stopper, re- 

 places Eugenia dicrana Berg and has as a variety M. fragrans var. 

 simpsonii I Small i R. W. Long, Simpson stopper ( Anamomis 

 simpsonii Small, Eugenia simpsonii (Small) Sarg., and Myrcian- 

 thes simpsonii (Small) K. A. Wilson) . 



Psidium longipes (Berg I McVaugh. long-stalk stopper, replaces 

 Eugenia longipes Berg and E. bahamensis auth. 



Rapanea punctata (Lam.) Lundell, Florida rapanea, replaces R. 

 guianensis Aubl., which is a South American species. 



Solanum erianthum D. Don, mullein nightshade or potato-tree, 

 of southern Florida including Florida Keys and extreme southern 

 Texas, naturalized northward, replaces S. verbascifolium Jacq., 

 not L. 



Thrinax morrisii H. Wendl., brittle thatchpalm or key thatch- 

 palm, replaces or includes as a variety T. microcarpa Sarg. 



Thrinax radiata Lodd. ex J. A. & J. H. Schult., Florida thatch- 

 palm, replaces T. floridana Sarg. and T. parviflora auth. 



The next 4 tree species formerly listed as native on the Florida 

 Keys have been excluded (Little 1976b) . 



Andira inermis (W. Wright I DC, cabbage angelin, was found 

 only once and possibly was an accidental migration. 



Bucida bu<:eras L., oxhorn bucida, was introduced, not native. 



Clusia flava Jacq., was based upon misidentification of a sterile 

 specimen. 



Crescentia cujete L., common calabash-tree, was introduced, not 

 native. 



The last 3 species, accepted in the 1953 Check List, are omitted 

 as shrubs only rarely reported to attain tree size in Florida. 

 Gossypium hirsutum L., upland cotton. 



Psychotria ligustrifolia (Northrop) Millsp., Bahama balsamo. 

 Psychotria nervosa Sw. (Ps. undata Jacq. ) . Seminole balsamo. 



GENERAL MAPS 



This volume contains 6 General Maps, following the plan of 

 earlier ones. 



1. North America. The general map of North America, from 

 previous volumes, locates Florida with reference to other States. 

 Also shown are other place names, including the Provinces and 

 other subdivisions of Canada, States of Mexico, and names of 

 additional countries. The scale is approximately 1:30,000,000, 

 about 473 miles to 1 inch (300 km to 1 cm) . 



2. West Indies. Southern Florida is shown with reference to 

 the principal islands including Puerto Rico and the Virgin Islands. 

 Also indicated are adjacent countries of Central America and 

 northern South America. Many of these place names are men- 

 tioned under ranges of the tropical species. This map (Little, 

 Woodbury, and Wadsworth 1974, fig. 1) will serve as a reference 

 in the absence of species maps with the entire distribution. The 

 scale is approximately 1:11,000,000, about 175 miles to 1 inch 

 (110 km to 1 cm), almost the same as in the following map of 

 the Southeastern United States. Though slightly reduced, the islands 

 and distances are comparable with the small maps of Florida. 



3. Southeastern United States (contiguous). A base map 

 showing names of counties- — from the map of the contiguous 

 United States in Volume 4, scale 1:10,000,000, about 158 miles 

 to 1 inch ( 100 km to 1 cm) . 



4. Florida. This base map by the United States Geological 

 Survey is used for the ranges of the 98 tropical tree species mostly 

 in South Florida. The scale is approximately 1:4,000,000, about 

 63 miles to 1 inch (40 km to 1 cm). Lines show county bound- 

 aries, rivers, and lakes. Counties, county seats, and physical fea- 

 tures are named. Latitude and longitude are indicated by lines. 



5. National Forests, Everglades National Park, and Bis- 

 cayne National Monument. Trees of many species are found 

 within the publicly owned lands dedicated to the management or 

 preservation of the renewable natural resources. Comparisons with 

 a tree species map will indicate whether that species may be ex- 

 pected within the boundary. 



The Forest Service, L^nited States Department of Agriculture, 

 administers the 3 National Forests in Florida with headquarters 

 at Tallahassee. The Apalachicola (A) is located in the northwestern 

 part near Tallahassee, the Osceola (B) in the northern part near 

 Lake City, and the Ocala (C ) in the north central part near Ocala. 



The National Park Service, United States Department of the 

 Interior, administers the Everglades National Park (D) at the 

 southern end of Florida, with headquarters at Homestead, and 

 the Biscayne National Monument (E) at the northern end of the 

 Florida Keys. 



Additional State Forests and State Parks, not shown, may be 

 found on State highway maps. Four State Forests are under the 

 State Division of Forestry. About 75 State Parks and Historic 

 Memorials are administered by the Florida Department of Natural 

 Resources, Division of Recreation and Parks. Trees are protected 

 also in wildlife refuges and special sanctuaries. 



6. Plant Hardiness Zones. This Florida map is from the 

 Plant Hardiness Zone Map of the contiguous United States pre- 

 pared by the National Arboretum (USD A Agricultural Research 

 Service 1965). The cold hardiness zones are based upon average 

 minimum winter temperatures, that is. the lowest temperature in 

 each year. These zones indicate winter hardiness for certain orna- 

 mental plants but are equally useful for native trees. Of course, 

 other factors are involved in adaptation and distribution. 



Of the 10 hardiness zones, Florida has the 3 warmest, or 5 sub- 

 divisions, as shown on this map. From north to south and coldest 

 to warmest, these 5 subzones are listed here, with average mini- 

 mum winter temperatures in degrees Fahrenheit. 



Zone 8b, the coldest climate, 15° F., in a few counties along the 

 Alabama border in the northwestern part of the panhandle. 



Zone 9a, 20° F., the northern part of the State except near the 

 Atlantic Ocean. 



Zone 9b, 25° F., the central part of the State, except near 

 the coasts. 



Zone 10a, 30° F., the southern part of the Florida mainland 

 north beyond Lake Okeechobee to Cape Canaveral on the east 

 coast and to Tampa Bay on the Gulf Coast. 



Zone 10b, 35° F., the Florida Keys and southern end of main- 

 land, north to Indian River County on the east coast and Collier 

 County on west. 



Zones 8b and 9a could be grouped with colder zones as having 

 a warm temperate climate. Zones 9b and 10a could be classed as 

 subtropical. Zone 10b could be considered tropical, though with 

 freezing temperatures in infrequent years. However, the Florida 

 Keys are the only areas of the State which never experience freez- 

 ing temperatures and which are actually tropical. 



