112 
COPELAND. 
ad alam angustam pinnatifidis ; segmentis oblongis, inciso-serratis, obtusis, 
tenuiter membranaceis, atroviridibus (siccis) ; venulis simplicibus ; soris 
medialibus, parvis, nudis, subglobosis; cellulis annuli 10-12. 
Luzon, Province of Laguna, Mount Banajao, Copeland 21^2, in a very damp 
gorge at an altitude of 1,600 m. 
A species of unknown affinity. It lias rather the aspect of Athyrium; but I 
do not know any species of that genus to which it seems to be very near, and 
so have been constrained by the form of the sori to describe it as Dryopteris. 
It suggests Monachosorum in the small sori, blackish dried fronds, and swollen 
succulent bases of the stipes. It is more primitive and generalized than any 
other fern, known to me, with naked sori. 
ATHYRIUM Roth. 
Athyrium macrocarpum (Bl.) Bedd. Ferns South. Ind. (1863) t. 152, 153. 
A. halconense Christ in Philip. Journ. Sci. Bot. 3 (1908) 273. 
Luzon, Province of Laguna, Mount Banajao, Copeland 2120, altitude 2,200 m. 
The plant called Athyrium halconense is a form with exceptionally uniform 
and entire pinnae. Although recognizing its affinity 1 I did not doubt its distinct- 
ness until I collected on Mount Banajao specimens bearing on the same stem 
fronds of typical A. macrocarpum, and less adult, but fertile ones, referable to 
A. halconense, and found with these, less adult plants altogether identical with 
typical A. halconense. Typical A. macrocarpum has also come in from Mount 
Pulog, Province of Benguet, Luzon, For. Bur. 16276 Curran, Merritt, d Zscholcke. 
Athyrium anisopteron Christ is very near this, but is, up to the present time, 
recognizable by its crowded sori. 
CURRAN I A genus novum. 
Rhizomate late repente, palearum cellularum lumine fusco; stipitibus 
non articulatis ; fronde deltoidea, pinnatifida, glabra; venulae infimae 
acroscopicae ramis saepe anastomosantibus ; soris dorsalibns elongatis, 
nudis, paraphysibus earentibns. 
Currania gracilipes sp. nov. 
Rhizomate 1 mm crasso, versus apicem paleis sordidis 1.5 mm longis 
lanceolato-ovatis vestito; stipitibus viridibus stramineisque, filiformibus, 
usque ad 20 cm altis, glabris ; fronde 5-9 cm alta, 3-5.5 cm lata, cordata, 
ad alam 4 mm latam pinnatifida; segmentis late oblongis, infimis falcatis, 
aliis rectis, obtusis, serratis, siccis papyraceis, utrinque viridibus; venulis 
furcatis, ramo inferiore saepius iterum furcato, liberis vel ramis 2 venulae 
infimae acroscopicae sursum eoadunatis; soris utroque latere uni- vel bi- 
seriatis, oblongis vel linearibus, 1-3 mm longis. 
Luzon, Province of Benguet, Mount Pulog, For. Bur. 16302 Curran, Merritt, 
d Zschokke, in rock-crevices of open grass land, altitude 2,900 m, Copeland P. P. E. 
112; Pauai, alt. 2,300 m, Copeland. 
This fern is in all probability derived from Athyrium. The pa leas have 
reasonably thin cell-walls and dark contents. The epidermal cells of the frond 
This Journal, Botany 3 (1908) 291. 
