Conspectus familiarum. 



Bangiacen'. — Tliallus liaiid ramosus, sive erectus filiformis aut 

 follaoous, sivo horizoutalitor oxpansus ot tunc disriforuiis. Ciiromato- 

 pliora (in unaquaquo cellula) sin<^ula,, stellffiformia, pyrouoide iustructa. 



Rhodocho3tacea!. — Tliallus lateraliter ramosus, erectus, filifor- 

 mis. Cliromatopliora (iu unaquaque cellula) plura, an^niste fascinefor- 

 mia, plerumque furcata, rubra. 



[Geuus (cum specie unica epipliytica) maris iucola]. 



?Compsopogonacea3. — Tliallus latoraliter ramosus, erectus, filifor- 

 mis, axin magnicellularem et corticem parvicellularem priebens. Chro- 

 matophora (in unaciuaque cellula) numerosa, disciformia, C(jeruIeo-vi- 

 ridia aut chalybea. 



[Genus unicum a(]ua> dulcis incola]. 



?Thoreace(8 ') — Thallns lateraliter ramosus, erectus, teretiu- 

 sculus, stratum medullare et corticem annulatim dense pilosum 

 praebens. 



[Genus unicum aqu» dulcis incola]. 



Pamilia I. BANaiACE^ (Zanard.) Berth. 



Banyiacea' Zanard. [1843] Classif. lieee p. 16 {Bangiew\ Raboiili. Krypt. II, 2, 

 p. 131, cfr. Trev. Alglie coccotalle p. 100, Naeg. [1847] Neuere Algensyst. 

 {Bangiaceaj') excl. gen., Bertli. Bangiac. Neap. 1882, T. Jolins. On Syst. Posit. 

 of Bang. 1894, p. 11, Schmitz in Engl. & Prantl Natiirl. Pnanzenlam. 141 

 (1896), p. 307, non nangidcce Gray [1821] Arr. brit. l'). I, p. 287. 



i'orphyreoe Kuetz. [1843] in Linnea XVII, p. 101 et Pliyc. genor ji. 382 exol. gen. 

 Peyssonelia et Hiklenbrandtia Harv. [1858] Ner. bor. Anier. III, p. 52. 



Porphyrace(£ Rabenh. [1868] FI. Eur. Algar. III, p. 397 jiartim, Ardiss. Phyc. 

 Medit. I (1883), p. 465. 



Thallus sive horizontaliter expansus et disciformis sive erectus 

 et tunc filiformis aut foliaceus. Celluhe chromatophoro unico centrali, 

 stella?formi, pyrenoide centrali donato instructa?, unimicleatae, sine 

 poris in pariete transversali. 



') De systematica dispositione generis r/torea? conferenda ostdintriba quam 

 Schmitz et Moebius pauios ante annos contenderunt. Gfr. vol. III, p;ig. 587 

 mefe Sglloges AJgariim. 



