146 
COPELAND. 
natifida, rhachi pube falcato-infiexa minuta dense vestita ; pinnis ses- 
silibus, infimis deflexis exceptis basi truncatis, apice rotundatis, 8 mm 
latis, approximate, -J- ad -J. ad costam incisis, lobis truncatis, interdnm 
serrulatis, minute clliatis, subcoriaceis, costis et venis infra setosis, lamina 
nuda; venis utroque latere ca. 4, infimis anastomosantibus ; soris media- 
libus, indusio rudimentario. 
Negros, Mt. Canlaon, alt. 1,200 m, Merrill 6934 (type). Mindanao, Camp 
Keithley, Mrs. Clemens s. n. 
In appearance very like D. exigua ( J. Sm. ) 0. K. which however is a Thelyp- 
teris and without reduced pinnae on the stipe. 
Lastraea exigua J. Sm. seems to me to be a valid species, although 
it has been reduced to D. philippina (Pr.) C. Chr. In the description 
of the latter, Presl states clearly that it includes but part of the plants 
in Cuming’s No. 251 ; and the fern he describes is smaller in all parts 
than our specimen of that number. We have no plant in the group 
with such an indusium as Presl describes. 
Lastraea exigua J. Sm. is a nomen nudum, and Cuming 251 and 
272 are cited as’ specimens. The first diagnosis accompanying the use of 
this specific name is given by Mettenius, Aspidium No. 180, 1858. He 
distinguishes two forms, a and (1, the first of which is said to be Phegop- 
teris nervosa Pee. This fern can be identified with absolute certainty; 
it is neither of the plants mentioned by Smith, both of which fall in 
the form /? of Mettenius. It is represented in our herbaria by speci- 
mens collected in Surigao, by Bolster. Fee’s name is unfortunately not 
valid in Dryopteris. In publishing the combination Dryopteris exigua, 
0. Kuntze refers to Hooker’s Nephrodium exiguum; and Hooker’s diag- 
nosis is translated from Fee’s of P. nervosa. Under the circumstances 
this fern is to be called D. exigua (Mett.) 0. K. 
Lastraea exigua J. Sm. is thus without a name, and for the plant 
which I have best ground to construe as this, since it is our Cuming 
251 and is not D. philippina (Presl) C. Chr., I propose the name 
Dryopteris confusa. 
Thelypteris rhizomate repente, stipitihus confertis ca. 20 cm altis, 
minute puberulis; fronde 20-30 cm alta, 4-5 cm lata; pinnis sessi- 
libus, basi truncatis haud eordatis, apice obtusis vel rotundatis, utrinque 
4 ad | ad costam incisis, subauriculatis ; costis et venis infra sparsissime 
puberulis; soris costalibus, indusio minuto, fugace. 
Luzon, Cuming 251; Nueva Vizcaya, Bur. Sci. 8211 Ramos. 
Dryopteris philippina (Presl) C. Chr. is very probably the plant of Cumins; 
which we have under his number 272. Except as to the indusium it fits Presl’s 
description satisfactorily. The indusium is small and transient, and can be 
detected on a small part of the sori, which in our specimen are in excellent 
condition. Some scales or fragments of abortive sporangia sometimes can be 
