CAD CCIX: 
POLYPODIUM TRIDACTYLU M. 
FILICES.—GvnaATx. Br.  PorvroprACEzm. Kaulf. | Firrczs vere. Willd. 
GzN. Cuag. PTERIS, Linn.  Sori subrotundi (seriati, sparsi vel conferti). —Znvolucrum. 
nullum. Jr. 
PoryPobpiUM /ridactylum ; fronde digitato-tripartita, laciniis lanceolato-acuminatis integerrimis re- 
ticulatis glabris, soris sparsis, stipite elongato. 
Polypodium tridactylum. JZall. Cat. of. Pl. in Mus. E. I. C. No. 815. 
Has. In montibus apud Sylhet. 7V. JWallicA, M.D. 
Caudez repens, crassitie pennze anserinse, subtortuosa, radiculas numerosas ramosas flexuosas emittens. 
Stipites digitales ad semipedalem, erecti, semiteretes, glabri, omnino nudi. 
Frons palmaris ad spithameeam, simplex, profunde digitato-tripartita, laciniis lanceolatis, attenuatis, integerrimis, 
costatis, reticulatis, utrinque glaberrimis, membranaceis, intermedia longiore, lateralibus: erecto-patentibus, 
subflexuosis. 
Sori sparsi, hemisphserici, venulis secundariis inserti. 
Capsule subglobosse, compresse, reticulatze, lato-annulatze, annulo fere completo, longe pedicellatze. 
Semina reniformia, albescenti-pellucida. ij 
Fig. 1. Portio frondis cum soris. f.2. Capsule. f.3. Semina:—magn. auct. 
Perhaps this species is more nearly allied to some of the varieties of. P. phymatodes than to any 
other; but the fronds are by no means coriaceous, nor are the sori at all immersed. P. Sfemionifis 
Cav., according to the description, differs in the sori being arranged in a series. 
