XII, c, 1 Copekmd: New Species Borneo Ferns 59 
Mount Kinabalu, summit of Low's Peak, in rock crannies, Mrs. Clemens 
No. 10621, November, 1915. 
The diagnosis just given applies to the form at greatest altitude, where 
the general appearance seems to be fairly fixed. With decrease of altitude 
and exposure the fern of course grows more freely, down to its lower limit, 
which, so far as our collections show, is about the Paka Cave. Topping’s 
No. 1698, from between the cave and the summit, has some stunted fronds, 
but also some 15 cm high and equally wide. His No. 1705 from the im- 
mediate vicinity of the cave, has the tripinnatifid fronds ovate and 20 to 
25 cm high, with much the aspect of A. nigripes, but still with brown, not 
very dark scales, and the stipe still somewhat fleshy. 
Euathyrium reaches its best development in species in the extra-tropical 
Orient; but within the tropics, each mountain of sufficient height has a 
group of apparently and probably local species. In this gToup we have 
now one species from two Celebes peaks, this one of Kinabalu, and one 
from Mount Data, Luzon. A somewhat different line of evolution from 
the same near parent stock is represented on Data, Kinabalu, and the 
Pangeranggo. 
ATHYRIUM ATROPURPUREUM sp. nov. 
A. gregis A. Filix-foeminae, A. drepanopteronti similis, eo 
paleis, stipitibus et pube atro-purpurescentibus, lamina tenuiore 
distinctum; rhizomate suberecto; stipitibus confertis, plerisque 
atropurpureis, aliis pallidioribus, ca. 20 cm altis, pedibus paleis 
lanceolatis acuminatis 5 mm longis sparse vestitis, sursum re- 
lictis palearum minutarum asperulis; fronde 20 ad 25 cm alta, 
lanceolata, acuminata, deorsum non angustata, tripinnatifida ; 
pinnis majoribus 5 cm longis, 20 ad 25 mm latis, deltoideo-lan- 
ceolatis, acuminatis, brevipedicellatis, rhachibus sursum vel ubi- 
que alatis; pinnulis sessilibus vel adnatis, oblongis, pinnatifidis 
vel sursum dentatis ; segmentis acutis, integris vel f urcatis ; lam- 
ina papyracea vel chartacea, superne pilis et squamulis minutis 
deciduis sparse vestita, obscura; venis nigris; soro in segmento 
quoque uno, laminam ejus fere complente; indusiis polymorphis, 
plerisque dryopteroideis, aliis (parvis) forma Leucostegiae, aliis 
athyrioideis. 
Mount Kinabalu, Low’s Peak, Mrs. Clemens 10620, Topping 1696. 
ATHYRIUM ATROSQUAMOSUM sp. nov. 
Diplazium, A. Blumei affine, soris brevibus, lamina tenuiore, 
stipite deorsum paleis angustissimis nigris nitidis asperis subcrin- 
itis 5 ad 12 mm longis dense vestito ; stipite 40 cm alto, deorsum 
nigro sursum sordide brunneo-stramineo ; rhachibus in sulcis 
dorsalibus pilosis, alibi paleis paucis parvis irregularibus decid- 
uis ornatis ; fronde 1 m alta, 60 cm lata, triangular! ; pinnis sat 
remotis, stipitatis, acuminatis, infimis 35 cm longis; pinnulis 
