116 POLYPOUIUM FORMOSUM. 



Caudex upright, and densely covered with dark reddish 

 brown long scales. 



Stipes and rachis scaly, especially near the base. 



Fronds pinnate, pinnee pinnatifid, being deeply so near the 

 base. Pinnae linear-lanceolate; pinnules rounded. Apex both 

 of frond and pinna; acuminate. Pinnae short-stalked and as- 

 cending. Inferior basal pinnule larger than the rest, and often 

 split quite to the stem. 



Fronds triangularly-elongate in form. 



Sori covering the whole underside of the frond. 



Veins forked. 



Length of frond thirty inches, a third of which is naked. 

 Colour a rich dark shming green. 



For a plant and fronds of Poly podium formosum I am in- 

 debted to M. Schott, Director of the Imperial Botanic Gardens 

 of Schonbriinn, Vienna. 



It is not in any of the Nurserymen's collections. 



The illustration is from a plant in my own collection. 



