134 TASMANIAN BRYOPHYTA, 



FISSIDENS STRICTUS, Hfw. 



Medium sized, rigid, erect generally, 1-2 cm. high. 

 Leaves numerous, erecto-patent, imbricate, rigid, linear, 

 rather obtuse, lower ones very small, dark ; upper ones 

 yellowish, nearly 2 m.ni long; margin not bordered, often 

 minutely crenulate at the apex ; nerve yellow, fairly strong, 

 vanishing below the apex ; cells strongly incrassate, round, 

 but very irregular, smooth, or slightly convex, 6-12 u. 

 Seta rather strong, mostly under 3 m.m. ; capsule very 

 broadly oblong, erect, with a broad mouth, slightly con- 

 stricted below the mouth when dry, 0.7 m.m., lid conic, 

 oblique. 



York Town Rivulet. • 



FISSIDENS OBLONGIFOLIUS, Hf. et W. 



Suberect, closely caespitose, in bright green masses, 

 stems 1-2 cm. Leaves numerous, imbricate, narrow, oblong, 

 very obtuse, or with a short, apiculus, rarely with an 

 acuminate subacute apex, revolute when dry, 2 m.m., sheath 

 about I leaf length, surface and margin from slightly to 

 rather prominently papillose, not bordered ; nerve un- 

 dulate, vanishing in or below the apex; cells irregular!}' 

 rotund, slightly incrassate, averaging 9 u. Seta slender ; 

 capsule oblong, inclined 0.8 m.m. ; lid with a slender ros- 

 trum nearly as long; calyptra very narrow. Very seldom 

 found in fruit. 



Very common in damp gullies. 



FISSIDENS PALLIDUS, Hf. et W. 



Pale green, brown below, 1-2 cm., sometimes very 

 short. Leaves numerous, imbricate, lanceolate, or ligulate, 

 acute, more or less revolute when dry, 2 m.m. Sheath half 

 leaf length ; nerve narrow, vanishing below the apex ; 

 margin not limbate, ver}^ minutely serrate from cell pro- 

 tuberances ; cells rather irregular, rotund, incrassate, nearly 

 smooth, averaging 9 u. Seta 8 m.m. ; capsule arcuate, ob- 

 long, with a strumous base, and a wide, rather oblique 

 mouth, O.S m.m. ; lid with a sharp rostrum, as long, or 

 longer; calyptra slender, as long as' the capsule, irregularly 

 torn at the base. The type plant was small and pale. 



