COLLECTION OF BORNEAN MOSSES. 319 
ISOPTERYGIUM ALBESCENS (Schwaegr.), Jaeg. Decayed tree-stumps, sandy 
ground about tree-roots, etc., Sandakan, e.fr. (Nos. 49, 55, 57, 65); roots of 
coconut palm, Labuan, c.fr. (No. 116) ; Sibetic Is., с.г. (No. 125). 
I. BANCANUM (Bry. jav.), Jaeg. Shaded damp bank by jungle path, 
Melalap, near Tenom, a robust form, with capsules larger than usual, c.fr. 
(No. 194); shaded sandy bank near Tenom, c.fr. (No. 201), somewhat 
less robust. 
PLAGIOTHECIUM Migue (Bry. jav.), Broth. Damp shaded rock in 
jungle, Sandakan (No. 53) ; damp rock in jungle, Sapong, near Tenom, c.fr. 
(Nos. 211, 212). 
Two other plants T refer here with some hesitation, viz. from jungle, 
Sekong, c.fr. (No. 99); and decayed wood, Sekong, c.fr. (No. 106). The 
same thing has been issued by Levier as P. Miqueli, “ Borneo, leg. 
Ledru, det. C. M., no. 2816.” They represent a very pale, glossy plant 
with much denser, less complanate foliation than in normal P. Miquelüi, 
having lax vesicular cells at the junction of the leaves with the stem, and a 
comparatively lux stem cortex, and have thus a very different aspect, 
combined with certain not unimportant structural characters. The peri- 
pheral stem cells of P. Miquelii (е. g. from Sumatra, leg. Beccari, 1878, in 
Herb. Kew.) are very narrow and linear. А specimen in Herb. Hampe. in 
the Brit. Mus. collection, * Banca, leg. Kurz & Lacoste," has the usual thin, 
sub-complanate phyllotaxy, and colour of P. Miquelii, but the cortical cells 
of the stem are slightly wider than in the normal plant, and the foliation is 
a little denser; while Мг; Binstead’s No. 99 is also slightly intermediate. 
АП have, moreover, the very characteristic perichætial bracts of this species, 
and it is perhaps best to keep the plants in question under P. Miquelii. I 
should add, however, that M. Thériot is inclined to look upon it as a 
distinct species, and points out certain other distinguishing characters in the 
form of capsule, etc. ; but I am not clear that these characters are constant, 
and am at present disposed to retain the plants here. 
TAXITHELIUM SELENITHECIUM (C. Muell.), Par. Decayed wood in shade, 
Sekong, c.fr. (No. 111), det. Fleischer. Found also with Nos. 101 and 108 
from the same locality. | 
Т. 1SoCLADUM (Bry. jav.), Broth. Small tree in jungle, Sandakan, c.fr. 
(No. 62); Sekong (with Aérobryopsis longissima, No. 96). 
T. PAPILLATUM (Harv.), Broth. Decayed wood in jungle, Sandakan, c.fr. 
(Nos. 50, 54a, 64); decayed wood in shade, Sekong (Nos. 103, 111) 
Sadong, Sarawak, leg. J. H. Cranston, 1900 (Nos. 48, 112). 
