AN ENUMERATION OF CULTIVATED FEENS. 



189 



receptacle, constituting a linear, continuous or interrupted 

 sorus. Indusi'um linear, marginal. 



* Vernation fasciculate, decumbent 

 ccespitose. 



f Fronds simply pinnate. 



1. P. longifolia, .Linn. ; (Plum. 

 Fil t. 69); Sclik. Fil 

 t. 88; Lowe's Ferns, 3, 

 t. 42. P. vittata, Linn. 

 P. ensifolia, Sw. P. lan- 

 ceolata, Deaf. P. Alpini, 

 Desv. P. obliqua, For sis. 

 P. costata, fiory. P. 

 aequalis, Presl. P. acu- 

 minatissimum, Blume. 

 P. amplectans, Wall. P. 

 Bahamensis, i^e'e. Tro- 

 pics and Northern Tem- 

 perate Zone. 



Genus 96. Barren pinna. No. 4. 



Portion of fertile frond, natural size 



ff Fronds pinnate, the lower pair or more of pinna} 

 lobed or pinnate. 



2. P. Cretica, Linn.; Sclik. Fil. t. 90; Lowe's Ferns, 3, t. 43. 

 P. serraria, Siv. P. pentaphylla, Willd. 



Var. albo-lineata, Hook.Bot. Mag. t. 5194; Lowe's 

 New Ferns, t. 25. 



Tropics and North Temperate Zone. 



