n6 



TRANSACTIONS OF WAGNER 



VEGETATION OF SOUTH FLORIDA 



strongly with the sunny floor of the open pine woods. The dark recesses of 

 these small hammock patches encourage the growth of moisture-loving, lower 

 plants, which are entirely absent from the open, well-lighted and wind-swept 

 stretches of pine forest. And by these means the botanist can single out the 

 areas where the banana-hole vegetation, growing under different photic and 

 edaphic conditions, is able to exist in competition with the exclusive and per- 

 sistent types of the pine-barrens. 



Means of Distribution. The plants characteristic of the banana holes 

 (Plate III, Figs, i and 2) can be arranged into several groups, according to the 

 means by which they have migrated into the pot-holes, which abound in the 

 Biscayne pineland, south of the Miami River. 



WIND DISTRIBUTED 



Polypodium polypodioides, spores. 

 Phlebodium aureum, spores. 

 Typha angustifolia, hair-tufted, small 



fruits. 

 Phragmites phragmites, long silky 



hairs in the intervals between the 



florets of the spikelets. 



Tillandsia, hair-tufted, small seeds. 



Orchidaceae, microscopic seeds, testa 

 bladdery. 



Salix longipes, hair-tufted seeds. 



Conoclinum dichotomum, hairy pap- 

 pus on achenes. 



Mikania batatifolia, hairy pappus on 

 achenes. 



WATER DISTRIBUTED 



Sagittaria lancifolia, seeds shining, not 



wetted by water, hence floating. 

 Cladium effusum, achenes small, 



with corky tips. 

 Annona glabra, by the light corky 



wood, carried by water through 



the pine forest. 



Cephalanthus occidentalis, small 



fruits. 

 Isnardia natans, seeds small. 



ANIMAL DISTRIBUTED 



Sabal palmetto, drupe, avivectent. 



Smilax laurifolia, berry, avivectent. 



Myrica cerifera, small wax-covered 

 nut, avivectent. 



Quercus virginiana, acorn, by birds 

 and rodents. 



Annona glabra, large juicy fruit, avi- 

 vectent. 



Chrysobalanus pellocarpus, fleshy 

 drupe, avivectent. 



Rhus (Metopium) toxiferum, drupe, 

 avivectent. 



Ilex cassine, red fleshy drupe, avi- 

 vectent. 



Vitis Munsoniana, berry, avivectent. 

 Persea pubescens, drupe, avivectent. 

 Morinda roioc, syncarp. 

 Sagittaria lancifolia, small seeds in 



mud on birds' feet. 

 Cladium effusum, small achenes in 



mud on birds' feet and feathers. 

 Cephalanthus occidentalis, small 



fruit segments in mud on birds' 



feet. 

 Proserpinaca platycarpa, nut-like 



fruit, in mud on birds' feet. 

 Isnardia natans, small seeds in mud 



on birds' feet and feathers. 



