]^40 The Philippine Journal of Science mz 
CYATHEA SUBDIMORPHA Copel. sp. nov. Plate 11. 
Descriptio arboris caret. Adest pinna una, 45 cm longa, 
16 cm lata, acuminata, rhachi atropurpurea, nitida, inerme, 
subtus glabrescente, supra velutina; pinnulis sterilibus usque 
ad 95 mm longis, 20 mm latis, pedicellatis, acuminatis, basi 
truncatis, deorsum pinnatis, rhachi subtus paleis angustis 1 mm 
Jongis brunneis sat dense vestita; pinnulis 2-6 paribus liberis, 
infimis non adnatis, 3-4 mm latis, ubique serrulatis, squamuli- 
feris, venulis f urcatis ; pinnulis f ertilibus usque ad 70 mm longis, 
12-15 mm latis, magis pinnatis, pinnulis infimis brevi-stipitatis, 
coriaceis; soi;is costulae approximatis, confluentibus, exindu- 
siatis. 
Northwestern slopes of Mount Salak, alt. 900 m, No, ^68. 
Like other dimorphous species, such as C. atropurpurea, C. Hewittii and 
C. biformis, this has the color and pubescence of the C. glabra group. 
HYMENOPHYLLUM Smith 
HYMENOPHYLLUM PRODUCTUM Kze. 
This is apparently quite common in Java, and is given by van Alder- 
werelt (Malayan Ferns, 69) as the Malayan form of his H. demissum 
Sw. It is unknown in the Philippines, where, as noted by Hooker^ and 
by Christ,^ a fern like the H. demissum of Polynesia and New Zealand 
occurs; and Christ states that this is in Celebes also. I cannot distin- 
gnish the two by size, but do so easily by the more pointed and toothed 
valves. The figures of Schkuhr and van den Bosch show the differences 
well. 
HYMENOPHYLLUM HOLOCHILUM (v. d. B.) C, Chr. 
No, 513, collected on tree base, northwestern slopes of Mount Salak, alt. 
1,400 m. 
This can be determined as diminutive forms of this species, or as H. 
blandum Racib. As is suggested by Raciborski, so it seems very probable 
to me, that the two are not distinct. 
DRYOPTERIS Adanson 
DRYOPTERIS ADNATA (Bl.) v. A. V, R, Malayan Ferns 191, excl. descrip. 
No. 962, Mount Pangeranggo, alt. 3,000 m. , 
This fern agrees perfectly with Blume's diagnosis, but not with van 
Alderwerelt's amended description. The pinnae are rather obtuse and the 
pinnules oblong. 
DRYOPTERIS SARAWAKENSIS (Baker) Copel. 
Nephrodium sarawakensis Baker in Journ. Linn. Soc. Bot. 22 (1886) 
225. 
Aspidium intermedium BL, non "Willd. 
As Christ has shown, Christensen is wrong in confusing this with Nephro- 
• dium rhodolepis Clarke. Aspidium intermedium Bl. is widespread, and 
'Sp. FIL 1: 109. 'This Journal 2 (1907) Bot. 155. 
