Ce Pe ey ee eee oe ie geen al ial Net 
ae eee ne 
———— es se ee: 
XII, C, 1 Copeland: New Species Borneo Ferns 65 
filiformibus, castaneis, 1.0 ad 2.5 cm altis; fronde lineari-oblan- 
ceolata, 1.5 ad 3.0 mm lata, 2 ad 3 cm longa, obtusa, deorsum 
sensim attenuata, subcucullata, subcoriacea, fusca, pilis sparsissi- 
mis concoloribus mox deciduis vestita; venis inconspicuis, simpli- 
cibus vel furcatis; soris usque ad 12 mm longis, subapicalibus, 
lateribus frondis deflexis protectis. 
Mount Kinabalu, Low’s Peak, altitude 3,670 meters, Mrs. Clemens, mixed 
with No. 10618, the remainder of which is Polypodium kinabaluense. 
This fern differs from Scleroglosswm in the very essential feature of its 
strictly superficial, or even slightly elevated sori. The filamentous stipes, 
leaving the short rhizome or caudex with a conpicuous covering of paleae, 
also give it a quite distinct appearance. The protection of the sori by the 
deflexed sides of the arched apex is mechanically like that already known 
in the case of Hymenolepis platyrhynchos; and in both cases the protection 
tends to be raised and so to expose the sorus when the frond is dry, but 
to fold down when it is wet. 
In its characters, Oreogrammitis stands between Scleroglossum and 
Polypodium, and-possibly illustrates the origin of the former; but as it is 
known only from the isolated summit of Kinabalu, it seems more likely that 
it is an independent offshoot. 
SCLEROGLOSSUM van Alderwerelt van Rosenburgh 
SCLEROGLOSSUM ANGUSTISSIMUM sp. nov. 
Rhizomate suberecto, basibus stipitum, radicibus filiformibus 
rigidis atrofuscis, atque paleis lanceolatis integris pallido-fuscis 
usque ad 5 mm longis 1 mm latis acutis, densissime obtecto ; stipit- 
ibus ut placet, aut nullis, aut alatis et 1 ad 4 cm altis, compla- 
natis; fronde lineari-spatulata, parte subapicale fertile 5 ad 10 
mm longa, 1.5 mm lata, deorsum ad alam usque ad caudicem 
protractam stipitis sensim angustata, apice obtusa, coriacea, 
glabra; costa haud prominente, usque ad apicem attingente; venis 
brevibus, liberis, immersis; soris intramarginalibus, fere ad cos- 
tam immersis, sulcis decurrentibus, paraphysibus nullis. 
Mount Kinabalu, Marai Parai Spur, Mrs. Clemens 11048. An unmis- 
‘ takable Scleroglossum, but with more the form and size of a Monogramma. 
From above Paka Cave, we have a single specimen of another small 
Scleroglossum, mixed with the type collection of Polypodium kinabaluense; 
until more material may be brought in, I am not sure that it is not a 
dwarfed specimen of S. pusillum. 
146016—5 
