S8 TASMANIAN BRYOPHYTA, 



decurved, base very broad, dorsaliy strongly decurrent, 

 ventrally abrupt, 2.5 mm., apex narrow-rotund to shortly 

 bidentate; cells 27-32 ^., trigones small, cuticle covered 

 with small short subacute papillae. Underleaves large, 

 erect, concave, l-3rd bidentate. broadly oblong, usually 

 free. 



Described by Mitten as Lophoro/cr/ derur-rn. 



Longley. 



New Zealand. 



Saccof/yna asperrima, St. — Decumbent branching 1-2 

 <;m., reddish-green. Leaves crowded erecto-homomallous 

 imbricate ovate asymmetric, 1.5 mm., dorsal margin sub- 

 strict, ventral ampliate, apex subacute entire or biden- 

 tate ; cells 27-36 ^i., trigones medium convex, cuticle 

 covered with large acute asperities; underleaves half as 

 large as the leaves, rotund imbricate free, apex with a 

 shallow sinus to J bidentate. 



The leaves are smaller tha.n in *S'. c//^s■^/Y/ //.<?, the apex 

 niore often entire, and the underleaves not so closely 

 aj^pressed. 



Cradle Mt. West Coast. 



LOPHOCOLEA, DUM. 



Generally large to medium, rarely small, procumbent; 

 branches few, ventral. Leaves tender, succubous, entire, 

 letuse or bidentate, rarelv with marginal teeth. Under- 

 leaves always present, small, generally bifid, margins jalain 

 to more or less dentate, the marginal teeth sometimes as 

 long as tile terminal lobes, rarely reniform with 4-6 spinous 

 teeth ; free or connate with the leaves on one or both sides. 

 Cells rotund, mostly 20-30 ^. diameter, walls generally 

 thin with small or no trigones, rarely the trigones are 

 rather large and rotund. Bracts similar to the leaves, 

 only larger and often more dentate. Perianth usually ter- 

 minating main shoots, rarely on lateral branches, generally 

 long and triquetrous with a 3-lobed mouth, angles rarely 

 winged, occasionally cylindric. Calyptra delicate. Capsule 

 .spherical on a long stalk. Anthe-ridia in a fold at the 

 dorsal insertion of the stem leaves. 



A very large genus. The species vary consider- 

 ably, and are correspondingly difficult to determine. 

 It is seldom that any character can be received as 

 constant. Most of Stephani's new species are here 

 described from specimens determined by him, but 

 some of these appear more as extreme forms than good 

 species. 



