Eii-Fl()ri(lo;i', Solici'icaj, S(jlici'ia. 365 



tO. Rhabdonla? decumbens Gnm. in Askenasy Algen Forsrlmngsr. 

 Gazellc p. 40, t. II, f. 9-10,15, Meristotheca decumbens Grun. m 

 Piccone Alg. Croc. Corsaro alle Is. Mad. e Canarie (1881) p. 52. — 

 Fronde irrcgulariter dicliotoma et lateraliter ramosa, anastomosante, 

 dccumbcnte, segmcntis latcralibus patontibus, ultimis acutis. 



Hab. ad insulas Canaricnscs, ad insulam Maderam ct prope 

 « San Jago » ins. Promont. Virid. (Liebetuuth, Askenasy). — Fron- 

 des us(|uc ad 7 cm. longa3, inrcrne o-4 milliin. crasste, superne 

 1 mm. crassie, hinc inde appendiculas gerentcs, (juarum ope rami 

 anastomosi quasi conjunguntur et frons matrici adhaeret. Tetraspo- 

 rangia sparsa, eximie cruciatim divisa. Color rubro-fuscus, in car- 

 neum vergcns. Substantia crassa, carnosa. 



Species a genei-e exclusae. 



20. Rhabdonia dura Zanard. Plant. mar. rubr. enum. n. 101), t. XT, 

 f. 1, est SoUeria, sec. Schmitz Mar. Florid. v. Ostafrika p. 149. 



21. Rhabdonia tenera J. Ag.Sp. II, p. 354, Epicr. p. 592, eHtAgardhiel/a 

 tenera (J. Ag.) Schmitz. 



22. Rhabdonla Baileyi Harv. in Knetz. Tab. Phyc. XVI, tab. 74 est 

 AgardJnella tenera (J. Ag.) Schiuitz. 



SOLIERIA J. Ag. [1842] Alg. mar. med. p. 156, Sp. III, pag. 721, 

 Epicr. p. 596 (Etym.- a claro phycologo A. Solier), Kuetz. Sp. p. 748, 

 Schmitz et Hauptfl. in Engl. & Prantl Natiirl. Pflanzenfam. 142 

 (1896), p. 379, non Soliera Clos [1849], Delessericv, Sphcerococci, 

 Gigartinw, Gracilarice, Plocaricu sp. auct. — Frons carnoso-farcta, 

 teretiuscnhi, triplici strato contexta, medullari lilis clongatis angu- 

 stis longitudinalibus, intermedio cellulis majoril)us ol)Iongis, cor- 

 ticali minoribus submonostromaticis constituto. Cystocarpia in ra- 

 mulis propriis evoluta, plura saepius adproximata, immersa, demum 

 prominula, carpostomio munita, nueleum compositum plexu dcn- 

 siore arctc ambientc cinctum fovcntia.; nuclcoli circa placentam 

 centralcm radiatiin dispositi, filis sparsioribus stcrilibus a placenta 

 ad ambientem plexum extensis invicem separati, filis carpospori- 

 feris simpliciusculis invicem liberis fasciculatis peripheriam versus 

 radiantibus constituti; carposporae in articulis terminalibus elongatis 

 singulae, clavato-obconicie. Tetrasporangia in ramulis lateralibus 

 strato corticali immcrsa, zonatim divisa. 



Obs. Gcnus Solicria, Rhabdoniw valde proximum, ita ut spe- 

 cies caute dignoscenda^ sint, ab hoc differt imprimis fronde car- 



