POLYPODIUM. 215 



P. Skinneri — Skin'-ner-i (Skinner's), Hooker. 



A stove species, native of Guatemala, producing from a wide-creeping 

 rhizome clothed with broad, pale scales, fronds 6in. to Din. long and l^in. to 

 2in. broad. These, borne on rigid stalks 2in. long, are cut down nearly or 

 quite to the rachis into numerous close, narrow, slightly -notched leaflets of 

 a somewhat leathery texture, and thinly clothed on their under-surface with 

 minute scales. The spore masses are disposed in two long rows. — Hooker, 

 Species Filicum, iv., p. 276b. 



P. SOlidum — sol'-id-um (firm), Mettenius. 



The fronds of this stove species, native of Java, are produced from a stout 

 rhizome clothed with rusty-brown scales, and borne on firm, erect, naked 

 stalks lin. long. They are from Gin. to 8in. long, fin. broad, and cut down 

 nearly to the rachis into close, distinctly-toothed, bluntish lobes of a leathery 

 texture and naked on both sides. The spore masses are disposed in one 

 regular row on each side of the midvein. — "Hooker, Species Filicum, iv., p. 193. 



P. (Phymatodes) SOridenS — Phy-mat-o'-des ; sor'-id-ens (having toothed 

 sori). Hooker. 

 A stove species, of small dimensions, native of Borneo, producing from 

 a wide-creeping rhizome clothed with rough, reddish scales, its rigid, leathery 

 fronds, 4in. to 12in. long, Jin. to Jin. broad, very gradually narrowed to both 

 ends, and glossy on both sides. The barren ones are entire, while the fertile 

 ones are undulated, forming lobes in each of which one spore mass is 

 immersed ; these produce a very distinct, nipple-like appearance on the upper 

 surface. — Hooker, Species Filicum, v., p. 61, t. 283b. 



P. SOrorium — sor-o'-ri-um (related), Humboldt, Bonpland, and KuntJi. 



A stove species, native of Cuba, Mexico, and Peru, with fronds Ift. to 

 2ft. long, Gin. to 9in. broad, borne on erect, naked stalks 6in. to 12in. long, 

 and produced from a stout, wide-creeping rhizome densely clothed with small, 

 pale brown scales. The lowest leaflets, which are the largest and stalkless, 

 often measure 6in. in length ; they are sharp-pointed and slightly undulated 

 at the edge, of a soft, papery texture, and naked on both sides. The spore 

 masses are disposed in distinct rows nearer the midrib than the edge. — Hooker, 

 Species Filicum, iv., p. 219. Nicholson, Dictionary of Gardening, iii., p. 193. 



