BY L. EODWAY. 221 



1913. 



Nerve dissolved in apex. 



Branchiug bipiniiate , ... furfurosum 



Branching pinnate Stuartii 



Thuidium laeviusculum (Mitt.) Jaeg, 

 Primary shoot long, procumbent, with annual elongar- 

 tions, each section with numerous, erect, short, closely pin- 

 nate secondary branches; paraphyllia very numerous; 

 leaves broadly cordate with long flagellate, seiTate tips. 

 Ultimate branchlets also with paraphyllia; leaves ovate; 

 0.4 mm. ; nerve vanishing below the apex ; cells each with a 

 prominent forked papilla; the nerve armed externally 

 with prominent serrations. Seta 3-4 cm. ; capsule inclined, 

 larger and more curved than in the other species, 3-4 mm. 

 Rest not seen. 



Common in shady woods. 



Thuidium sparsum (H.f. et W.) Jaeg. 



Habit of T. furfurosum, but thp secondary branches more 

 numerous and close set with flagellate tips. Leaves of 

 primaries as in T. furfurosum, ; those of secondaries ovate- 

 cordate, margin serrulate, nerve vanishing in or below the 

 apex; cells rotundo-quadrate, with shoi-t obtuse papillae. 

 Fruit not present in Tasmanian specimens. 



West Coast. 



Thuidium unguiculatum (H.f. et W.) Jaeg. 



Very similar to T. furfurosum,, only less robust. Leaves of 

 primaries cordate with an attenuate apex, nerve con- 

 tinuous, under 1 mm. Leaves of secondaries smaller, ovate 

 from a broad base, nerve lost below the apex ; cells coarsely 

 nodulose, papillate. Perichsetials as in T. furfurosum, the 

 vaginule bearing numerous slender paraphysis. Seta slen- 

 der, 3 cm.; capsirle inclined, cylindric, curved, 2 mm.; lid 

 with a slender rostrum as long as the capsule; calyptra 

 clothed with a few long erect hairs- at the base. 



Ver}" common in damp places. 



Yery close to T. furfurosum and often considered only as 

 a variety. Tliough the typical plant is distinct there appear 

 to be numerous intervening forms, also with T. Stuartii. 



Thuidium furfurosum (H.f. et W.) Jaeg. 

 Procumbent, branches pinnate or irregularly bipinnate. 

 Primaries relatively robust, densely covered with para- 

 phyllia ; leaves cordate with a rather long acuminate apex, 

 1.5 mm.; nerve strong, continuous, but partially dissolved 



