― ISO — 



like processes from the places where they come in contact. Tetra- 

 sporancria densely collected in slip^htly thickened branchlets. 



Hab. Densely ag^^rei^ated on the rocks at hio-h-tide. Common 

 along the Pacific coast of this country from Kyushyu to Cape Kin- 

 kwazan, Sori ; 一 Early in summer. 



Fronds dwarf, greo'arious forming" widely spreadinpr patches of 

 ■cleanse and soft mat, erect or risint^ from secondarily decumbent and 

 rootim"*- filaments, terete or slightly compressed, often complanated 

 above. Ramification very irrep-ular bein?- between pinnate and dicho- 

 tomous ； some of branches are more or less elono-atecl and pinnate, but 

 usually more shortened and furnished with simple or branched, shorter 

 or longer spine-like branchlets ； they are usually strongly recurved. 

 Often branches and branchlets slightly dilate upwards into subcuneate 

 segments and become densely decompounded In subdichotomous man- 

 ner as if crispated, beinp- toothed on the upper margin (Fig-. i6). 

 Branches of every order taper 'into sha^rp points rising from equally 

 broader bases and attach themselves to substratum or fuse to each 

 other by forming root-like attachments at the place where they come 

 in contact ； and thus fronds become decumbent. Growing apex of 

 frond is provided with an alternately and cbliquely articulated ter- 

 minal cell, and the frond is constructed by repeatedly dichotomous 

 cortical filaments arisino;' on all sides from the elonofated axial cells, 

 JRhizoidal filaments are almost wanting. 



Tetrasporanf^ia form nemathecia-like sori in slij^htly thickened 

 branchlets, and also scattered in other segments. し ystocarps un- 

 ； known. Colour dark reddish brown, chanorina- to almost black in 

 drying. Substance soft but rather harsh to touch when recent, 

 becoinino- somewhat rigid after drying*. 



