96 JOURNAL OF THE MITCHELL SOCIETY [| June 
Lycopodium prostratum 
Lycopodium adpressum 
Lycopodium carolinianum 
Selaginella apus (Little-clubmoss) 
Selaginella ludoviciana 
Selaginella acanthonota (Resurrection-plant ) 
Selaginella aren 
Isoetes flaccida (Quillwort) 
These ferns occupy, for the most part, temperate and sub-tropical 
Florida.? The plants are predominantly terrestial. Some kinds, how- 
ever, are aquatics; others are amphibious. Many kinds prefer as a 
habitat what we commonly call soil, others grow best on exposed rock, 
while a few seem to thrive luxuriantly in ‘‘ peat. 
The lowland kinds reach Florida along the Atlantic Coastal Plain, 
while the highland species extend southward from the mountains or 
from the Piedmont region along the hills and ridges and through the 
river-valleys of western Georgia and eastern Alabama. The typically 
lowland kinds, the majority of the species of the above list, often 
range far southward in the peninsula, while the ranges of the highland 
species generally end in northern Florida or in the upper part of the 
peninsula, for example: Athyrium Filiz-foemina, Dryopteris hexagon- 
optera, Polystichum acrostichoides. 
The tropical elements, comprising, as they do, about two-thirds of 
the species, furnish the more varied and consequently the more in- 
teresting fern-plants of our range. They are represented by: 
Ophioglossum tenerum (Adder’s-tongue) 
Cheiroglossa palmata (Hand-fern) 
Trichomanes lineolatum ( ema -fern) 
hci punetatum 
Trichomanes Kraussii 
Aetna Germani (Curly-grass) 
Anemia adiantifolia (Flowering-fern) 
Ceratopteris ee (Floating-fern ) 
Ceratopteris deltoidea 
Stenochlaena finan ( Holly-fern) 
Acrostichum aureum ee tuaciacgy: 
Acrostichum excelsu 
Polypodium Pinas: (Polypody) 
Polypodium pectinatum 
Polypodium polypodiodes (Resurrection-fern) 
® Includes particularly all the state, except the Ever lade Keys, the Cape Sable region, 
and the die Sc Reef. The ferns have Pe gn nsidere a in “Fern ns of Tropical ae 
i-ix, 1-80, 1918, and “Ferns of Royal Palm Hanvaork,”" ety 18, and mee ta 
19 
in papers published in the journal of The New York Botanical Cacien from 1904 t 
