COLLECTION OF BORNEAN MOSSES. 301 
SYRRHOPODON (Thyridium) JUNGQUILIANUS, Mitt.* — Sibetie Is. (No. 122). 
Fleischer (Musei .... von Buitenzorg, 1. 232) remarks that T'hyridium 
undulatum, T. Junquillian, T. adpressum, T. papuanum, appear to be sub- 
species of a polymorphie type. To these I should be inclined to add 
T. fasciculatum. | Fleischer relies on the robust habit to distinguish fascicu- 
latus from undulatus, together with the nerve slightly excurrent in the rather 
broadly acute point, the hyaline border usually extending to the somewhat 
toothed apex, the nerve rough at the back above, the hyaline cells of the 
cancellina scarcely reaching higher at the nerve, so that the line separating 
it from the lamina cells is almost straight and horizontal. 
S. undulatus he describes as much more slender, with the nerve ceasing 
below the gradually narrowed, more acute point, the hyaline border nearly 
always ceasing some way below the subentire apex, the nerve smooth at back, 
and the cancellina cells reaching higher near the nerve, so that the line of 
delimitation is eurved or arched. 
[ have examined numerous specimens of each in order to verify these 
distinctions, with no very satisfactory results. Thus S. codonoblepharum, C. M. 
(in herb. Mus. Brit.), Padang, Sumatra, Hb. Lugd. Batav., has nearly ail 
the characters of S. undulatus, but the border reaches the apex. S. codono- 
blepharum, planta javanica a cl. Zollingero lecta, Hb. Shuttleworth (in 
herb. Mus. Brit.), is almost exactly similar. Mr. Binstead's No. 48, which 
I have referred above to ©. fasciculatus, is a very robust, purplish-black 
form with pale tips, agreeing with S. fasciculatus as above described in every 
particular, except that the cancellina cells are very distinetly and very 
constantly higher towards the nerve. №. 9L is true undulatus in all struc- 
tural points, but is very robust. No. 226 has the nerve smooth, the cancellina 
slightly higher at nerve, the apex of the leaf somewhat intermediate in form, 
apieulate with the nerve-point, the border generally reaching nearly to the 
apex, the habit rather robust—on the whole an indeterminate plant. 
I incline to think that the size of the plant, and extension of the hyaline 
border towards the apex are not characters to be relied upon ; that the wider 
point, stouter, rough, subexcurrent nerve, and especially the straight, horizontal 
upper delimitation of the cancellina, are the best characters of fasciculatus, 
the more acute point, narrower, smooth nerve, and arched cancellina line 
characterizing undulatus; but these cannot be considered absolutely constant. 
S. Jungquilianus, Mitt. is more distinct from the above than they are from 
one another. In both the species already referred to the lamina is (when 
moist) bent back somewhat markedly from the erect, much broader base. 
In S. Jungquilianis the much smaller leaves are nearly straight and suberect, 
* This peculiar name is with very little doubt due to a misreading of Mitten's MS. by the 
authors of the Dry. jav. Mitten, it may be presumed, intended Junghuhnianus. In the 
Bry. jav. it appears as Junquilian. Fleischer cites it as Junquillian. I have preferred to 
give it as written by Mitten himself in Journ. Linn. Soc. (Bot.) x. 188, viz. Jungquilianum. 
