AN ENUMBR4.TI0N OF CULTIVATED FEENS. 



22. PLEUEIDIUM, Fee ; J. Sm. 



Rhizome short or elongating. Fronds simple, pinnatifid or 

 pinnate, coriaceous, firm, marginate ; segments articulated with 



Genas 22. — Fortion of fertile frond, natural size. No. 1. 



the raohis. Veins compound anastomosing ; primary veins 

 evident, elevated, costseform, straight. Beceptacles compital. 

 Son round or oval, or by confluence oblong, transversely uni- 

 serial or obliquely 1-2-serial. 



* Fronds simple. 

 ■f Sori obliquely v/rdserial. 



1. P. crassifolium, Fee. Polypodium orassifoHum, Linn. ; 



FVwm. Fil. t. 123. Anaxetum crassifolium, Schott. 

 Gen. Fil. t. 1. Polypodium coriaceum, Badi. Fil. 

 Bras. t. 26. — Tropical America. ■ 



2. P. albo-pTinetatissimum, /. 8m. Polypodiuni albo- 



punctatissimum, Linden's Cat (1860). — Tropical 

 America. 



3. P. crassinervium, /. Sm. Polypodium crassinervium, 



Blume, Fl. Jav. t. 61. — Java. 



ff Bori obliquely biserial. 



4. P. nipestre. Fee. Polypodium rupestre, Blume, Fl. Jav. 



t. 55, /. 2 ; t. 60, /. 1-3. — Java and Luzon. 



5. P. triquetrum, J. Sm. Polypodium triquetrum/ Blume, 



Fl. Jav. t. 69.— Java. 



