BY L. KODWAY. 24.9 



1913. 



imbricate, in most instances cartilaginous; nerved or 

 nerveless ; margin entire ; surface papillose or smooth ; 

 cells small rotundo-quadrate, strongly incrassate, those at 

 the base rectangular to linear. Sporogonium terminal, 

 subsessile on an elongated peduncular extension of the 

 axis, lidless and opening by splitting from the apex to the 

 base into four or more sections ; calyptra small mitriform. 

 The family has no close affinity to any other group. The 

 leaf tissue is rather similar to Hediuigia and allies. The 

 elongation of the axis to function as a seta is only met with 

 otherwise in Sphagnaceae. The splitting of the capsule to 

 allow exit of spores is found in no other moss but is usual 

 amongst Hepatics to which the family has no relationship. 



Andreaea Ehrh. 

 This, the only genus, is sufficiently defined in the de- 

 scription of the family. The species are mostly found on 

 rocks at a considerable altitude. All the Tasmanian forms 

 have enlarged perichaetial leaves, the capsule has four 

 incisions but the segments then formed do not separate at 

 the apex. 



The species vary considera-bly and it is simply a matter 

 of opinion into how many species the forms should be 

 grouped. 



Leaves ovate-lanceolate, obtuse to acute, margin involute, 



nerveless, coarsely papillose externally. (PetPOphila group.) 



Leaves ovate-lanceolate, patulous, base sheathing, upper 



leaves often longer and falcate petrojihila. 



Leaves broadly ovate, acuminate, geniculate from a 



broad sheathing base acuminata. 



Slender wdth many branches. Leaves narrow acute, 



squarrose tenera . 



Leaves narrow, dark, clustered at apex, thin texture, 



coarsely papillose e.ximia. 



Leaves concave, incurved, obtuse, lower leaves small, 



very obtuse amhlyoijhylla. 



Leaves more or less shining. Nerveless. 



Leaves with a short acuminate apex wontana. 



Leaves obtuse nitida. 



Leaves long narrow with a bold nerve subulatissinia. 



Andreaea petrophila Ehrh. 

 Syn : Andreaea juUcaulis CM. 

 Tall, red, few branched, to short and pulvinate. Leaves 

 ovate-lanceolate from a sheathing base, geniculate, sub- 

 acute 0.7 mm., in some forms the upper leaves longer and 



