302 MR. Н. N. DIXON ON А 
the base very little and not abruptly widened, the hyaline border (at shoulder 
particularly) considerably narrower ; in other leaf characters resembling 
S. undulatus ; it is а much more slender plant than either. ` 
S. undulatus, Lindb., Celebes, Lacoste, in Herb. Hampe., and 5. undulatus, 
Sambor, Borneo, 1903, leg. Micholitz, det. Brotherus No. 249, are certainly 
S. Jungquilianus, Thyridium luteum, Mitt. I suspect strongly to be the same 
thing. 
SYRRHOPODON (Thyridium) rravus, C. Muell, n.f. major. Sekong 
(No. 76). The only specimen of S. flavus that I have been able to consult 
(* S. tenellus, Doz. & Molk.” in Herb. Schimp. at Kew) agrees with this in 
everything but its smaller size, and the hyaline border usually not reaching 
so high (in No. 76 it reaches nearly to the apex); in some leaves, however, 
it nearly attains the apex. Mr. Binstead’s plant, I think, must be a robust 
form of this species; the hyaline border at the widest part is as much as 
10 rows of cells in breadth; the genera habit is that of S, Cardotii, but 
the leaf-apex quite different. 
№. (Thyridium) ВїхзтЕАрп, Thér. & Dixon, sp. nov. (Pl. 96. fig. 5.) 
Caulis repens, cæspites densos habitu S. wndulati sed multo minores 
instruens, ramis cirea 1—1°5 em. altis. Folia erecto-patentia, siccitate falcato- 
incurva, sicca madidaque valde undulata, brevia, vix 1 mm. superantia, e 
basi amplexicauli cito in laminam oblongam angustaía, apice abrupte in 
cuspidem linearem longam proboscideam obtusam scaberulam sepe apice gemmi- 
param constricta. Limbus folii inferne latus (in parte superiore basis 
8-seriatus vel supra) superne tenuiter denticulatus, infra apicem evanidus, e 
cellulis tamen laminæ marginalibus 1—2-seriebus pallidioribus echlorophyl- 
losis ad apicem productus. Cellule chlorophyllosee permrnute, ovales, 
3-5 р late, perdensæ, minutissime papillose obscure. Cancellina superne 
oblique angustata, partem vaginantem folii longe superans, tamen propter 
3—5 series cellularum juxtacostales nune æquilongas nune inæquales ambitu 
valde irregulari, e cellulis hyalinis pro more angustis lineari-rectangularibus 
ter-sexies longioribus quam latis instructa. Costa tenuiuscula, dorso levis 
euspidem terminalem percurrens, 
, 
Cetera ignota. 
Hab. Jungle, Sandakan, 4 Apr. 1913 (No. 28). With S. undulatus. 
А distinet species when carefully examined, though very likely to be 
overlooked for S. undulatus or one of its allies. The leaf-outline is in some 
respects intermediate between S. undulatus and 5. Jungquilianus, having the 
base less abruptly narrowed at the shoulder and the lamina less reflexed than 
in the former, but more conspicuously than in the latter. The narrow 
cancellina cells are a strong feature, as is also the peculiar form of the leat- 
apex, and these, apart from other characters, at once distinguish it from 
5, Cardotii and all the allied species. 
