Eaton: Pteridophytes observed in Florida 467 



Phlebodium aureum (L.) J. Smith 



Very common on palmettos, mostly in the decaying leaf-bases 

 near the crown, occasionally found on logs or other trees than the 

 palmetto, rarely on the ground. Apparently rare on the keys. 

 At Madeira hammock there is a glaucous form. 



CampylOxNeurum angustifolium (Sw.) Fee* 



Plants epiphytic; rootstocks 1-3 cm. long, 0.5 cm. wide, 

 marked at the naked proximal end by close-set, cup-shaped leaf- 

 traces crossing diagonally in 3's, clothed at the living end with 

 narrowly lanceolate-acuminate, seal-brown scales; fronds 6-12, 

 about half being of the current year's growth, the rest of the pre- 

 ceding year's, the two cycles usually separated 0.5-1 cm. ; stipes 

 clustered, short, 3-5 cm. long, slightly grooved above, winged 

 laterally, passing gradually into the fronds ; fronds narrowly 

 linear- lanceolate, usually somewhat falcate, long-acuminate, 2-4.5 

 dm. long, 0.5—1 cm. wide, leathery, the veining obscure; primary 

 veins often zig-zag, the first branch arising from near the base on 

 the upper side, soriferous just below the apex. The vein that 

 encloses the upper edge of the basal areole often bears a branch 

 above the middle, this occasionally soriferous, the sori thus being 

 in a regular or somewhat broken line on each side of the midrib, 

 about half-way to the margin. 



On trees, mostly live-oaks that bend considerably from the 

 perpendicular, growing on the upper side ; also on branches 

 among tillandsias ; the fronds at first at right angles to the root- 

 stock, then recurving toward the base of the tree. Considerable 

 numbers seen in Timb's hammock ; not observed elsewhere in 

 South Florida. First discovered by Mr. Soar. Also seen on 

 magnolias at Oviedo with Polypodiiun Plumula and P. pectinatum ; 

 first discovered by Mr. T. L. Mead (not J. E. Layne, as reported 

 in Fern Bull, for April, 1904). Not seen by me on the west 

 coast, but reported by Mr. Oakes Ames to be common in the 

 " bay heads " near Naples. 



Campvloneurum costatum (Kunze) Presl 



Rootstocks much as in C. Phyllitidis, clothed at growing end 

 with narrow, flexuous, triangular-acuminate dark-brown scales ; 

 stipes in two rows, 4-14 cm. long, smooth, green or castaneous 

 beneath, rounded on the back, green and flat above, with a narrow 

 sharp groove in the center, the edges bordered by a narrow, in- 



