160 MR. W. MITTEN ON THE SPECIES OF 
TORTULA, Hedw. 
Sect. Hyophila. 
34. Т. SPATHULATA.—Gymnostomum spathulatum, Harv. 
A small barren tuft, ‘ Challenger’ Exp. 
Sect. Desmatodon. 
35. T. EMARGINATA, Dozy et Molk. Musc. Frond. Archip. Ind. et Japon. 50, t. 20. 
(Barbula.) 
Collected by Siebold. 
Sect. Helicopogon. 
36. T. UNGUICULATA, Roth. 
By Siebold and Textor. 
37. T. INFLEXA.— Trichostomum inflecum, Bruch. 
Mentioned in Miquel. 
POTTIA, Ehrh. 
38. P. LANCEOLATA, C. Muell. var. (= Gymnostomum intermedium, Turn.). 
Collected by Тег. 
ANGCTANGIUM, Hedw. Sp. Muse. i. 40. 
39. А. PULVINATUM, sp.n. Planta feminea: pulvinatim ceespitosum, inferne radicellis 
fuscis laxe contextum. Folia humida patentia, sicca laxe contorta incurvaque а 
basi ereetiore, cellulis rotundis paucissimis ad nervi latera elongatis, subovata, 
pellucida, inde angustata lineali-lanceolata acuta, nervo concolore percursa carinata, 
apice pellucida, cellulis obscuriusculis areolata. 
Nikko, Bisset. i 
Caules uncia major, eum foliis humidis 2 mm. lati. Folia inferiora fusca, superiora 
viridia, 1 mm. longa. 
40. А. TORQUESCENS, sp. n. Planta mascula: humilis. Folia humida patentia, sicca 
appressa contorta oblongo-linealia, ubique fere æquilata, acuta, e cellulis densis 
obscuris areolata. 
A very small tuft, * Challenger’ Exp. 
Caulis centimetro minor. Folia 1 mm. longa, fusco-viridia. 
This differs from the preceding in the form and areolation of its leaves, almost the 
only distinctions available in the genus. In both the inflorescence is found in the usual 
position and it is almost exactly uniform in all. 
