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PL AT Y CERIU M ALCICORNE. 
Fronds 24 to 36 inches long ; apex is often divided into six or eight 
points, the under surface is covered with white matted down. The small 
engraving 1 represents the upper side of a frond ; 2 the apex of a frond with 
sori. Native of Austrailia. A greenhouse fern. 
POLYPODIUM AUREUM. 
Fronds 30 to 48 inches long, stems purplish brown, springing from a 
stout creeping rhizome, which is covered with light brown soft hairs or scales. 
The small engravings, 1 and 2, represent the upper and lower surface of a 
portion of a frond. Native of Mexico. A stove fern. 
POLYPODIUM CAMBRICUM. 
Fronds 12 to 18 inches high, 3 to 5 inches broad, springing from a scaley, 
creeping rhizome. The small engraving, 1 and 2, represent the upper and 
lower surface of a part of a frond. Native of Wales. Hardy fern. 
POLYPODIUM CAMBRICUM WHITII. 
Fronds 6 to 10 inches high, and 2 to 4 inches broad, springing from a 
stout creeping rhizome. The small engravings, 1 and 2, represent the upper 
and lower surface of a portion of a frond Hardy fern. 
POLYPODIUM DREPANUM. 
Fronds 12 to 14 inches long, stem covered with brown scales. The 
small engraving 1 represents a small portion of the upper side of one of the 
fronds, and 2 represents the underside of a smaller portion at a larger scale. 
A greenhouse fern. 
POLYTODIUM DRYOPTERIS. 
Fronds 6 to 12 inches long, stems scaly, the fronds spring from a wiry 
creeping rhizome. The small engravings, 1 and 2 represent the upper and 
lower surface of a portion of a frond. From the mountain districts of Britain 
Hardy fern. 
