IX, C, 3 
Copeland: New Sumatran Ferns 
233 
POLYPODIUM (PHYMATODES) CRASPEDOSORU M sp. nov. 
Rhizomate repente, 1 mm crasso, paleis e basi minuta peltata 
anguste setiformibus, 6 mm longis, rubidis, apicem versus pal- 
lescentibus; stipitibus 4-6 cm altis, 0.5 mm crassis, glabris; 
frondibus subdimorphis, sterile 10-12 cm alta, 6-8 mm lata, 
utrinque angustata, obtusa, Integra, margine angustissime car- 
tilaginea coriacea, fertile 12-20 cm alta, ca. 4 mm lata, costa 
gracile, superne elevata et minute sulcata, subtus tereta; venis 
omnino occultis, tenuissimis, irregularibus, areolarum series 1-3 
utroque latere includentibus ; soris submarginalibus, leviter 
immersis et superne paullo praestantibus, plerisque oblongis 
et margini parallelis. 
No. 131,. 
Differs from all other species known to me with sori near the margin, 
Diblemma samarense, Polypodium revolutum, etc., in the setaceous clothing 
of the rhizome, and from each species in several other respects; apparently 
a very distinct novelty. 
