Eaton :- Pteridophytes observed in Florida 469 



it in Bauer's hammock, Gossman's. First observed by Mr. Soar. 

 Very scarce. 



i 



Campyloneurum Phyllitjdis (L.) Presl 



Abundant in nearly all hammocks visited, and various in posi- 

 tion, oftenest on decaying vegetable matter on the ground, or on 

 prostrate logs. In particularly favorable places plants grow to a 

 large size and are often on trees, sometimes at a height of ten 

 meters or more. Rare on the Keys, only one or two seen on 

 Key Largo, none on Long Island (Plantation Key) ; and but few 

 at Madeira hammock, Flamingo, and Whitewater Bay. The 

 largest frond collected is rather more than a meter long and 7 cm. 



wide. 



Meniscium Schreb. 



Simple or pinnate ferns with naked sori borne on the arched 

 cross-veins which form regular areoles between the parallel pri- 

 mary veins. Differs from the subgenus Goniopteris of Dryoptcris 

 principally in its elongate sori. 



Meniscium reticulatum (L.) Sw.* 



Rootstocks short, stout, ascending; stipes stout, 2-15 dm. 

 long, 4-ridged above, sparingly clothed at first with small, thin, 

 irregular brown scales, soon naked; fronds 2-14 dm. long, 1.5-9 

 dm. broad, oblong-lanceolate, as broad at base as at middle ; rachis 

 4-ridged and hairy above, smooth beneath; pinnae 1-4.5 dm. 

 long, 2-7.5 cm - broad, shortly petiolate or sessile, oblong to lan- 

 ceolate, the sterile broadest at middle, the fertile with sides par- 

 allel to middle, thence narrowed to the long-acuminate point, 

 the edges irregularly repand-toothed or subentire, rounded or 

 mostly asymmetrically cuneate at base, the lower side somewhat 

 rounded, or in upper pinnae decurrent on rachis, the upper edge 

 straight ; rachises of pinnae smooth below, hairy and centrally 

 grooved above; primary veins parallel, secondary forming regular 

 arched areoles, the top of the arch bearing a short incrassated 

 veinlet that reaches to the middle of the superior areole ; areoles 

 8-20 between midrib and margin ; petioles of lower pinnae usually, 

 and of others quite often, giving rise to bulbils which develop into 

 plants, the buds and stipes covered with brown scales. 



On cypress knees, border of the everglade at pumping station 



at Alapattah. This was first found in Florida by the late J. E. 



Layne in the spring of 1903, who likewise found it in a cypress 



