234 LEAFLETS OF PHILIPPINE BOTANY (VoL. I, Arr. 13 
Tectaria decurrens (Presl) Copel. Aspidium Presl Rel. 
Haenk. I (1825); 28. A. heterodon Copel. in Perkin’s Frag- 
menta I (1905); 177. A. copelandi C. Chr. Index (1906); 
661. I now regard this as one of our most variable 
ferns and include in it forms with the rhizome horizontal, 
ascending and erect, and with the margin of the upper 
part of the frond varying from almost entire to very deeply 
and irregularly cut. It is no less variable in size. Elmer’s 
No. 7932 has the segments 40 cm. long and 7.5 cm. broad, 
with some of the sori 3 mm. in diameter. Presl states in 
the original description that the frond is completely pin- 
nate at the base, and Merrill has collected such a fern in 
Mindoro (P. J. S. 2 C. (1907); 123. 
Cyclophorus achrostichoides (Forster) Presl var. gracilis 
Copel. n. var. Typo speciei partibus omnibus gracilioribus, 
fronde 30-50 cm. longa, vix 1 cm. lata, minus coriacea, 
sororum seriebus 3-4, pedicellis stipitum brevioribus differt. 
Ad montem Banajao Insulae Luzon. Elmer 7751 and 7867. 
So distinct in appearance from the ordinary C. achro- 
stichoides that I did not at first suspect their affinity. 
Trichomanes bauerianum Endl. Mt. Banajao, Elmer 8109. 
This agrees perfectly with specimens from Java, New Guinea 
and Hawaii; the species has not been found before in the 
Philippines. T. apiifolium Presl is very distinct. 
Stenochlaena laurifolia Presl. Mt. Banajao, Elmer 7756. 
Prof. Underwood * distinguishes his S. milnei by its having 
wider sterile pinnae with rounded bases and narrower spo- 
rophylls. Much of Elmer's material has the sterile pinnae 
3.5 em. or more in width; in the key to the species (l. c. 
p. 37) those of S. milnei are given as 3.5-4 cm., but this 
loses 0.5 cm. in the diagnosis. Some pinnae of Elmer’s plant 
are truncate, others rather rounded. The larger fertile pin- 
nae are 10 mm. broad. A Mindoro plant, Bureau of Science, 
No. 1545, with sterile pinnae at most 3 em. wide, has the 
fertile ones 5-8 mm. wide and 20-25 cm. long. As the bases are 
rounded rather than truncate, it is nearer S. milnei by the 
diagnosis; but it certainly cannot be separated from S. laurifolia. 
* The Genus Stenochlaena. Bull. Torr. Bot. Club. 33 (1906) ; 35. 
