Eaton: Pteridophytes observed in Florida 461 



Extremely variable as to shape and cutting of the fronds. 

 Those on strong, new rootstocks are sessile, cordate, and nearly 

 orbicular, always sterile, the edges brown with reflexed stellate 

 bristles. Farther back from the end they become petioled, entire 

 or more or less incised; in the dense tufts they are of various 

 shapes, almost linear and entire when crowded and in deep shade, 

 irregularly incised when well developed, so that no particular con- 

 dition can be taken as typical. The receptacles are usually 

 inserted at the base and winged somewhat at the sides, but they 

 are sometimes almost completely included and at others are 

 wholly exserted and on distinct pedicels. The round fronds are 

 essentially those of T. punctatum of Hooker and Greville's Icones 

 Filicum, plate 2j6 ; while many are exactly comparable with the 

 illustration of T. rtptans of the same work. 



SCHIZAEACEAE 

 Anetmia adiaxtifolia (L.) Sw. 



Common in the limestone rubble of the pine woods, mostly a 

 little back from the hammocks, where the surface is uneven, but 

 occasionally in the shrubbery at the borders of the hammocks. 

 In well-drained but not dry places, the stipes frequently reach a 

 length of 4 dm. or more, the sterile segment a length of 2 dm. 

 and an equal width, the total height of the frond 6.5 dm. 



Rarely there are three spikes, one removed from the others 

 and smaller, occupying the position of one of the basal pinnae : in 

 other cases the apex of the sterile segment becomes elongated 

 and fertile. Miami appears to be near the northern limit of this 

 species, as the limestone extends only a short distance above, but 

 it is abundant in suitable places throughout the pine belt to the 



southward. 



# 



Schizaea Germam (Fee) Prantl 



. Actinostachys : Characterized by digitate pinnae and often 



four rows of capsules on a pinna. 



Plants from bristly tubers sunk in rotten wood, sessile or ele- 

 vated 1-3 cm ; on a slender, smooth, castaneous rootstock ; fronds 

 1-3 from a small castaneous-scaly, embedded bud ; the stipe buried 

 in humus and castaneous for the first 2-7 cm., then light-green, 



