POLYPODIACEAE 



15 



outline, longer than the 

 petioles, the segments 

 lanceolate, elliptic-lance- 

 olate, or linear-lanceolate, 

 or linear when young, 

 mostly 1-2 dm. long, en- 

 tire, undulate or some- 

 times crisped, separated 

 or approximate and even 

 overlapping: areolae co- 

 pious, somewhat irregu- 

 lar : sori in one series on 

 each side of the midrib, 

 aLout 2.5 mm. in diam- 

 eter. (SERPEXT-FERX. 



GOLDEX-POLYPODY.) 



Hammocks and adjacent 

 pinelands. Figure 7, re- 

 duced. 



Tne serpent-fern is usually confined to the palmetto or 

 cabbage-palm. Its bright-colored rootstock adheres 

 closely to the stem of the palm, winding between and 

 over the dead and living petiole-bases just below the 

 crown of leaves. It occurs less frequently, on other trees 

 and on fallen logs and even in humus on the hammock 

 floor and on rocks; but is most common on palmettos 

 around the edges of the hammocks, and it also grows on 

 palmettos on the pinelands away from the hammocks. It 

 is not plentiful in Eoyal Palm Hammock, but it may be 

 met with frequently, especially in the lower part of the 

 forest. It is widely distributed in all parts of tropical 

 America, and was discovered in Florida in the earlier 

 part of the last century. In Florida its range extends 

 to the northern part of the peninsula. 



4. CAMPYLONEUHUM Presl 



Eather coarse terrestrial or epiphytic wood-ferns. 

 Leaves erect, arching, or spreading, in a crown on the 



