ALG.E. 261 



77. Belonia. Filaments minute, heaped together, submo- 

 niliform, finally dissolving into elliptic sporidia. 



Tribe XVIII. Byssoide/E. Plcmts of doubtful affinity, re- 

 lated to the Fungi. Filaments articulated, hyaline or coloured. 

 Fructification ; granules scattered among the filaments, or cap- 

 sules. — Found on rotten wood, among mosses, on the ground, on 

 glass, or in chemical solutions : a few inhabit frcsh-xcater and 

 one or two the sea. 



78. Byssocladium. Filaments arachnoid, radiating from a 

 centre, with scattered external granules. 



79. Mycinema. Filaments membranaceous, opaque, tenaci- 

 ous, coloured, (on rotten wood.) 



80. Chroolepus. Filaments rigid, subsolid, opaque, torulose, 

 falling to powder. 



81. Trentepohlia. ' Filame?its flexile, coloured, capsulifer- 

 ous. Capsules terminal, (on trees, rocks, and in fresh-water.) 



82. Protonema. Filaments subarticulated, rooting, (among 

 mosses.) 



83. Hygrocrocis. Filaments hyaline, interwoven into an 

 uniform membrane or gelatine, (in chemical solutions.) 



84. Leptomitus. Filaments hyaline, erect, parasitical, 

 (growing in fresh water or the sea.) 



Div. III. Gloioclade/e. 1 



Plants consisting of numerous globules, or filaments invested with 

 a definite gelatine and forming globose or filiform fronds. 



Tribe XIX. Batrachosperme.e. Plants filiform or globose, 

 composed of articulated, branched filaments, in rested with at /< it inc. 



Fructification; SO for us it is known, capsules on tin. ultimate fam- 

 uli — Marine or in frcsh-wuti /'. 



A. Filiform. 



85. Me80gl6ia. Axis gelatinous. Periphery composed of 

 branched subdichotomous filaments. 



;. Batra< bospI RMi m. Filaments hyaline, longitudinally 

 striated, eel frith distant vrhorla of monlifann ramnU. 



87. DbaparnAldxa. Filaments hyaline, emitting leattered 

 pencili of coloured ramulL 



B. Gloitm or looed, 



88. Cn i i.>nmi: \. Frond gelatinous, globose, plans SB 

 Lobed, formed o/filameata issuing from the base. 



i Bf W, II. 1 1 .it % . v 



