TRANSACTIONS OF WAGNER 
VEGETATION OF SOUTH FLORIDA 
116 
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. ı 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. 
Tlex 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. 
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