164 
above. » » Segments 10 to 18 on each side, erecto-patent, * * * lan- 
ceolate, aeuminate, entire, ‘unicostatae et pidoherrime reticulatae,’ the lower 
gradually smaller. Stipe 2 to 3 feet high, straight, as thick as the quill of 
a goose or of a swan, * * greenish. Sori scattered or subseriate 
in a sort of double row on each side of the midvein * * *. Easily distin- 
guished from P. phymatodes L. by the membranous texture and the entirely 
superficial sori.’ The accompanying Plate 69 shows the lower pinnie the size 
of the succeeding, the rhizome bearing many acute scales, and the sori IJ to 2 mm. 
in diameter. 
Raciborski, in Pteridophyten der Flora von Biiitenzorg, p. 113, describes it as 
having “Rhizome * black, 5 mm. or less thick, clothed with round entire 
appressed scales 1 to IJ mm. in diameter. Stipe 5 to 40 cm. high, 4 inin. or 
less thick, smooth. Lamina thin, pellucid, naked, 20 to 30 cm. broad, 30 to 80 cm. 
long, deeply pinnatifid. * * Segments linear, * * * 1.5 to 2 cm. broad, 
up to 15 cm. long. * * In each areola, one round sorus, 1.5 to 2 mm. 
broad, superficial or sunken.” 
If the statements of Blume and Raciborski, where they conflict, be construed 
as both being correct, and covering the plant’s range of vaiiation, they still 
include only plants much less stout in many respects than that from Mount Apo. 
The size of the palese and of the sori and the firm texture are most Conspicuous 
characteristics of the latter. 
Mettenius, Polypodium No. 221, redescribed P. affine, with Cuming’s No. 97, 
from Luzon, as his material. This is identical with my No. 1582, from San 
Ramon. Its venation is comparatively obscure, but in pattern the same as that 
described by the Javan writers. It can he included in all respects hy a combina- 
tion of the descriptions by Blume and Raciborski, having a green, naked rhizome, 
stipe usually less than 1 foot high, and sori about 2 mm. in diameter, sometimes 
somewhat immersed. I can not distinguish it in anj^ way from P. commuiaium, 
which is probably a synonym. 
^ Polypodium (Phymatodes) proteus Copeland n. sp. 
lihizomate ad terram repente, paleis 3 mm. longis fernigineis subu- 
latis brevissime eiliatis basibus peltatis ovatis vel interdiim liastatis 
• vestito; stipitibus 6-170 mm. altis, glaberrimis; froiidibus polymor- 
phism glabris, coriaceis, marginibus angustis cartilagineis ; nimc simpli- 
cibus, integris, 5-50 mm. altis, ob longis vel lanceolatis, utrinqne obtusis, 
soris inter venas ^B’imarias solitariis; rarius trifidis; saepins pinnatis, 
nsque ad 20 cm. altis, fere eadem latitudine; pinnis 1-4 jngatis, laneeo- 
latis, acxTtis vel acnminatis nec nsquam candatis, integris vel nndnlatis, 
sessilibns, interdum adnatis vel infimis brevi-stipitatis, ad rliacliin ar- 
ticnlatis; venis primariis conspicuis, marginem vix attingentibus, vennlis 
immersis; soris ant inter venas primarias solitariis costae proximis, aut 
2-3-seriatis interdnm confluentibns, leviter immersis. (Tab. 25.) 
Luzon, Benguet, inter Suyoc et Pauai, 1,800 m. s. m., Copeland 1941 bis. 
In spite of its extreme variability and local abundance, I can identify this 
])lant with no known Phymatodes or BelUguea ; nor has it appeared hitherto in 
our licii collection of Bengaiet ferns. It grows on dry, rocky ground, the exposed 
plants being small and frequently simple, those sheltered by crevices larger, and 
finally pinnate. I'he articulation of the pinna; is an interesting adaptation to 
the arid hahitat. 
