Eu-Floridese, Oorallinacese. 1719 



Clafhromorphwm Fosl. — Sporangia in soros conceptaculiformes iramei-soa (te- 



gmine poris pauois intersecto) congesta. 

 1 At h,o1 hamnion Phil. (Fosl. emend.) '). — Sporangia plus minns oblonga, trans- 

 verse 2-4-divisa, in soros conceptaculiformes superficiales aut sul)immei-sos 

 (tegmine poris plus minus numerosis intersecto) conjuncta 



-]-l- Tetrasporangia in com^eptaculis propriis evolnta. 



O Tiiallus e singulo strato cellularum constans, cuticuiu pr?esenti aut nulla, 

 tantum prope conceptacula pluristromaticus. 



Melohesia Lamour. — Thallus eximie calce incrustatus. 



OO Tliallus ubique pluristromaticus, cuticula, prsesenti aut nulla. 



^ Thallus flexilis (lenissime incrustatus). 



Mastophora (Decne) Harv. Thallus frondem maxima ex parte liberam, deorsum 

 stipitiformem, sursum complanatam et plus minus fui-catim ramosam sistens 



^ A Thallus haud flexilis (valde incrustatus). 



Lithophyllum Phil. (Fosl. emend.) -'). — Sporangia in regione marginali disci 



conferta. Tegmen conceptaculi poro singulo intersectum. Heterocystfe in thallo 



nullae. 

 Goniolithon Fosl. — Sporangia per totum fundum conceptaculi sparsa. Tegmen 



conceptaculi poro singulo intersectum. Heterocystae in tliallo nnraerosse aut 



hinc inde sparsse. 



B 1 hajlus articulatus, erectus, teres aut complanatus, valde incrustatus, geni- 

 culis non incrustatis. 



Amphiroa Lamour. — Cystocarpia verrucaeformiter protuberantia, per articu- 



lorum superficiem sparsa. 

 Cheilosjjorum (Decne) Aresch. — Oystocarpia terminalia, in apice processuum 



corniformium (articulorum) immersa. 

 CoraUina (Tourn.) Lamour. — Cystocarpia terminalia, in apice articulorura 



ipsorum immersa. 



') Lifhothamnio subjunguntur, in systemate a claro Heydrich proposito 

 (Weiterer Ausbau des Corallineensysteras; 1900) plura genera quae sunt: Epilithon 

 Heydr., Eleutlierospora Heydr. (cum Fhymafolitho FosL, ut videtur, congruens), 

 Sphoiranthera Heydr., Paraspora Heydr. et Sporolifhon Heydr. 



'-) Ut Lithothamnio plura Heydrichii genera, ita Lifliophyllo nonnalla subjun- 

 guntur, quge sunt: Sticliospora Heydr., Hyperanthella Heydr., Sfereopliyllum 

 Heydr. et Perispermum Heydr. Certe Corallinacearum familia est dilficillima ac 

 dubiis multis vexata; peuitiorem ergo tractationem monographis, ut jam expressis 

 verbis dixit amicus Heydrich in opere citato, relinquendam censeo. Pliycologi de 

 his Algis curam peculiarem sumentes benigne conferre velint opera nuper a claris 

 Foslie et Heydrich in lucem edita, quse diatribam de systemate Corallinacearura 

 minutiosara continent. Potius quam synonymia nimium augeatur, genera seorsim 

 describere prseferendum videtur. 



