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attenuatfe diametro basali 3plo longiores, eximie patentes immo subrecurvi, 

 sparsi, inferiores ssepe bini. 



Acantlioph. muscoidein ab hac difFerre dubito; characteri- 

 bus dalis saltim iion distingiienda. 



TRIBUS V. SPHJEROGCOIDEiE. 



Frons cellulosa continua , cellulis rotundatis angulatisve 

 contexta. Fructus duplex : Coccidia Sid {vondem externa, intra 

 pericarpium eellulosum denique apertum, sporas obovatas in 

 articulis filorum moniliformium e placenta centrali egredien- 

 tium formatas, in glomerulum congestas, generantia. Sphoero- 

 sporoe in soris indefinitis per frondem sparsse , minutse , 

 sphaericse aut oblongae, intra perisporium hyalinum in sporas 

 4 triangule aut cruciatim (?) divisse. 



In observatiuncula {symb. p. ii) jam antea monui, Genera 

 qua3 l. c. Sphoerococcoideis adnumeravi , in fructu capsulari 

 difFerentias, ulteriori examini subjiciendas offerre. Aliam hujus 

 tribus limitationem hoc fructuum accuratius examen necessa^ 

 riam reddidit, et multae species, quse olim genus Sphcerococci 

 ingrediebantor, ad Cryptonemeas relegare coactus sum. Ut 

 tribum hodie hmitamus, genera sequentia Sphcerococcoideis 

 pertinent : //^/jTim 5 Gracilaria , Rhodomenia ^ Heringia, et 

 Sph(Brococcus. 



Lxxvi. Hypnba Lamour. Grev. sjn. n. lxvii. reform. 



Frons celluhs oblongo-angulatis, versus superficiem minori- 

 bus, constituta. Fructus duplex: Coccidia hemisphaerica apicu- 

 lata, perforata, sporas obovatas ad placentam hemisphsericam 

 affixas intra pericarpium cellulosum foventia. Sphcerosporce 

 oblongae in cellulis periphericis nidulantes, denique in sporas 

 4 cruciatim divisse. — Algae cylindricae enerves membrana- 

 ceo-cartilagineae, ex atrovii:ente purpuracentes , ramosissimae. 



