Iui-Fl()ri(l(.';p, C\ stocldiuoic, C;il('iU!lI;i. 317 



iioiic riiscescciiti-oliv.icous. Substaiitiii ,i;cl;itin()s;i, ia sicco fi!^iil;i 

 ;i(luioiluiii tV;igilis. 



Spccics a gcnci"c i-cmovciulee. 



7. Cystoclonium membranaceurn (ll;irv.) J. Ag. Sp. 11, p. 308 est Mij- 

 clunlcii incinhranacca ILirv. 



8. Cystoclonium carnosum (Harv.) J. Ag. Sp. II, p. oOO cst Mycho- 

 dea carnosa Harv. 



9. Cystoclonium turgidulum Kuctz. \n Bot. Zeitung 1817, p. 2:2 est 

 Soliei 'ia c/iordalis. 



10. Cystoclonium obtusangulum Kuetz. Sp. p. 757 est AcanUiococcus 

 spimiliger. 



11. Cystoclonium spinuligerum J. Ag. Algol. Bidmg p. 0, u. 10 est 

 AcantJiococcas spiniUiger. 



12. Cystoclonium iiliforme, pusillum et furcellatum Kuctz. Sp. p. 757 

 sunt Dicraneniatis sp. 



13. Cystoclonium aclculare J. Ag. Algol. Biilrag p. 9, n. 9 cst Mij- 

 chodea carnosa Harv. 



CATENELLA Grev. [1830] Alg. Brit. p. 166 (Etym. a catena, ob fron- 

 (leiii uioniliformiter constrictam), Kuetz. Phyc. gener. tab. 76 f. IV, 

 Sp. p. 723, J. Ag. Sp. II, p. 351, P^picr. p. 586, Ardiss. Pliyc. 

 Medit. I, p. 294, De Toni & Levi Fl. Alg. Ven. I, p. 107, Harvey 

 Gibson On the struct. and devel. of cystoc. of Cat. Opuntia (in 

 Journ. Linn. Soc, Bot., vol. XXIX, 1892), I cistoc. e gli anter. d. Cat. 

 Op. (Ncptunia I, 1891), Schmitz et Hauptfl. in Engl. & Prantl Na- 

 tiirl. Pflanzenfain. 1 12 (1896), p. 371, Faci, Ulvce, Chondriw, Ha- 

 lynienice, Rivularia', Lomentarice, Gigartince, Chordarice sp. 

 auct. — Frons moniliforuiiter constricta. ex articulis prolifera, di- 

 trichotoma aut subpinuati, subtubulosa, tubo percurso filis anasto- 

 mosantibus longitudinalibus et subverticalibus, superficiem versus 

 in fila moniliformia abeuntibus et in stratum periphericum inuco 

 cohibitum coalescentibus. Cystocarpia intra ramulos singula, rarius 

 bina, immersa, nucleum ad fila longitudinalia suspensum subcompo- 

 situin foventia; nucleus placentari adparatu centrali subdivisus, fa- 

 sciculos filorum pr8egnantiuui, peripheriam versus radiantes, steri- 

 libus filis a placenta ad fila peripherica extensis interceptos emit- 

 tens ; carposporse in filis radiantibus paucse, oblongo-obovatse, cor- 

 ticc demum disrupto liberatae. Tetrasporangia inter fila monilifor- 

 mia stratus corticalis evoluta, oblonga, zonatim divisa. Antheridia 



