404 FLORIDA GEOLOGICAL SURVEY SIXTH ANNUAL REPORT. 



? Crataegus Michauxii Pers. ? Haw. 



Moderately rich sandy uplands, particularly in old fields. 

 ? Crataegus lacrimata Small. Haw. 



Sandy ridge in central part of Walton Co. 

 ? Crataegus Crus-Galli L. ? Haw. 



Calcareous flatwoods in Gulf hammock region. 



Several other species of this difficult genus, which have not been identified, 



occur in regions ii, 13, 15, and elsewhere. (See index.) In Small's Trees 



of Florida 48 alleged species of Crataegus are enumerated, most of them 



from the area covered by this report. 

 ? Prunus umbellata Ell. Hog plum. 



Dry woods, etc., mostly northward. 



(There is another species, apparently undescribed, which differs from this 



in having red and more edible fruit. It grows mostly along roads in re- 

 gions 10, II. and 13, and may not be native.) 

 o Prunus Americana Marsh. Wild (goose) plum. 



Rich calcareous woods in regions i and 3. 

 o Prunus Caroliniana (Mill.) Ait. Mock orange. 



Bluffs of Apalachicola River, etc. Very rare in the wild state. 

 0.1 Cercis Canadensis L. Redbud. 



Rich, especially calcareous, upland woods. 

 Gleditschia triacanthos L. ? (Honey locust.) 



Calcareous sloughs, etc., in Gulf hammock region, and perhaps elsewhere, 

 o Gleditschia aquatica Marsh? 



Banks of Suwannee River, etc. 

 ? Xanthoxylum Clava-Herculis L. 



Phosphatic (?) sandy hammocks in Alachua County and along east coast. 

 ? Cyrilla racemiflora L. Tyty. (Also spelled tietie, tighteye and titi.) 



Branch and creek swamps, etc. ; common in most of the regions. 

 ? Cyrilla parvifolia Raf. Tyty. (Usually only a shrub.) 



Bays, etc.; almost confined to Middle Florida. 

 ? Cliftonia monophylla (Lam.) Sarg. Tyty. 



Bays and sour swamps, from Jefferson County westward. 

 ? Ilex decidua Walt. 



Alluvial bottoms of Apalachicola River, etc. 

 ? Ilex myrtifolia Walt. Yaupon. 



Shallow ponds, in most of the counties north of latitude 30. 

 ? Ilex Cassine L. (/. Dahoon Walt.) 



Non-alluvial swamps, mostly southeastward. 

 ? Ilex vomitoria Ait. (/. Cassine Walt.) 



Sandy hammocks, especially along east coast. 

 0.4 Ilex opaca Ait. Holly. 



In hammocks, commonest westward. 

 ? Aesculus Pavia L. Buckeye. 



Bluffs and moderately rich uplands; usually only a shrub, 

 o Acer saccharinum L. (A. dasycarfitfti Ehrh.) (Silver) maple. 



Banks of Apalachicola River, in regions 2, 3 and 9. 

 0.8 Acer rubrum L. (Red) maple. 



Mostly in non-alluvial swamps, in nearly every region. 



The var. trldens (or A. CaroUmarnim Walt.) is difficult to distinguish from 



this. It seems to prefer richer soils. 



