252. Dixon: New MossEs FROM MALAY PENINSULA 
the former, and the long perichaetial leaves with long, flexuose, 
strongly toothed piliform points often as long as or considerably 
longer than the expanded part, from all forms of A. secundum. 
The perichaetial bracts vary a good deal, however, and are some- 
times much less longly piliform, and less coarsely toothed; but 
are still quite different from those of A. secundum. The peri- 
chaetium figured is one of the more shortly pointed forms. 
The subula of the leaf, as in many of the allied species varies 
much in degree and character of papillosity; it may be quite 
smooth or lowly undulate-rugulose, or highly and acutely papil- 
lose. The cells are rendered rather obscure by the cell contents. 
Acroporium rigens (Broth.) 
dicranolomoides (Broth.) Dixon. var. nov. (PLATE 4, FIG. 10) 
Sematophyllum dicranolomoides Broth. n. sp. in sched. 
Folia laxiora quam in planta typica, valde patentia, minus 
stricta. Habitu formarum minorum specierum nonnullarum 
Dicranolomatis, e. g., D. brevisetum, D. reflexifolium. Sporo- 
gonium ei plantae typicae simile. 
HA Gunong Berumban, Pahang, 1908; Ridley (131). 
The more loosely set leaves, divaricate, sometimes at right 
angles to the stem, give this a quite different appearance to that 
of the densely and rigidly foliate type form, but there are no 
other differences in either the leaves or the fruit. 
Eucamptoden Wrayi Broth. in sched. in Herb. Kew., “‘sum- 
mit of Gunong Batu Putih, Perak, L. Wray Jr., No. 394. Herb. 
Mus. Perak,” is the same thing. The resemblance to some of 
the Dicranaceous genera, e. g., Braunfelsia (Eucamptodon auct.) 
is quite striking, particularly of course in sterile specimens. 
Acroporium denticulatum Dixon sp. nov. (PLATE 4, FIG. 8) 
Dioicum videtur. Inter alios muscos intertextum, mitidis- 
simum, albidum, A. hamulato Fleisch. forsan affine sed minus, 
brevius, atque colore omnino alienum. Folia circa 1.5 mm. 
longa, eis A. monoico, &c., simillima, sed apice paullo angustiore, 
fere minute, distanter denticulatis. Folia ramea angustiora, 
longius cuspidata. Cellulae parietibus incrassatis valde porosis, 
