GRYPOGAMIA. 
521 
Classis XXIV. 
CRYPOGAMIA. 
Fructificatio anomala vel obscura. 
FILICES. 
Herba fronclosa. Fructificatio vel dorsalis, 
vel terminalis, vel subradicalis. 
Annulat(z\ capsulis annulo elastico, valvulis contra- 
rio, cinctis. 
Capsules roundish., on pedicles encompassed by a joints 
eddastic ring ; and opening irregularly into 2 parts, 
POLYPODIUM. Fru( tificaliones in punctis sub- • 
rotundis sparsis. Invalucjurn nullum. 
POLYPODIUM. Capsules disposed in distinct cir^ 
cular dots., on the unaer suijace of the leaf. 
ASPIDIUM. Fructf. in punctis subrotundis, spar- 
sis. Invol. umbilicatum. 
ASPIDIUM. Fructifications scattered in roundish 
dots Involucrum umbilicated. 
ASPLENIUM. FiuftiJ. in lineolis sparsis. InvoL 
costarn versus dchiscens. 
