En-Fl(M'i(lo;c, Ca!Iyinenie;o, CallyunMiin. 20t 



nunc basi oiniiiiio cordata, circuiiiscriptiono fere orbicularis. Mar<^o 

 integer sod aniple undulatus, sinus irregulares liic illic enicicns, 

 tendentia nulla in lacinias dilacerari. Substantia vidotur niagis 

 nicnibranacea quam gelatinoso-carnosa ita ut speciniina siccando 

 charta^ laxius quoque adhaereant. Color pulchrc coccineus. Cysto- 

 carpia per totam superficiem sparsa, satis magna. Tetrasporangia 

 non perspicue divisa vidit J. Agardh. 



Callymenia reniformis (Turn.) J. Ag. Alg. Medit. p. 99, Sp. II, 59;^ 

 p. 286, Epicr. p. 321, Anal. algol. p. 64 (non Ardiss. Phyc. Medit. I, 

 p. 171, Harv. Phyc. Brit. t. 13, Ftwus t^enifornris Hist. tab. 113 

 (partim), Engl. Bot. tab. 2116, Eahymenia reniformis Kuetz. 

 Phyc. p. 400, Sp. p. 743 (partim), Halymenia reniformis Ag. Sp. 

 Alg. I, p. 201, Syst. p. 241 (excl. syn.), Rhodomenia reniformis 

 Hook. in Br. Fl. II, p. 292, Harv. Man. p. 64, Iridasa reniformis 

 Bory in Grev. Alg. Brit. p. 160, Sarcopliyllis lohata Kuetz. Phyc. 

 p. 401, tab. 76-, fig. 2'?, Tridcea tagana Welw. Phyc. lusit. p. 77?. 

 — Fronde gelatinoso-membranacea, a disco radicali in laminam 

 demum conspicue stipitatam latissime obovatam aut immo renifor- 

 mem, in lacinias obovatas irregulariter fissam cuneatim expansa, 

 margine subplano saepe prolifero, prolificationibus obovato-orbicu- 

 latis; cystocarpiis frondi immersis fere in maculas collectis. 



Hah. in oceano Atlantico calidiore. — Frons iuvenilis a stipite 

 brevi obovata surgit, sensim magis magisque latitudine increscens 

 usque dum omnino reniformis, altitudine 4-8 cm. metiens, latitudine 

 longitudinem sesqui-superante; interea finditur quoque frons in la- 

 cinias plus minus numerosas, plerumque obovatas et stipite subpro- 

 prio fultas, integras aut iterum divisas. Margo plerumque planus, 

 raro parce undulatus, demum lacinias frondi conformes emittens. 

 Tetrasporangia in cellulis corticalibus formata, per frondem sparsa. 

 Substantia gelatinoso-carnosa. Speciinina exsiccatione chart:e arcte 

 adha^rent. Color pulchre coccineus. Specimina in mari mediterraneo 

 lecta sub nomine CaUymenim reniformis in herbariis asservata ad 

 aliam speciem, sa^pius ad Callymeniam microphyllam Zanard. (non 

 J. Ag.) pertinent. — Varietates tres distinxit J. Agardh, quarum sy- 

 Tionymia mihi haud certa et pertinentia ad Callymeniam, renifor- 

 mcm dubia videtur, qua? sunt: var. cuneata J. Ag. Epicr. p. 221, 

 Euhymenia divisa Kuetz. Tab. Phyc. XVII, t. 78, Irickm divisa 

 Kuetz. Phyc. p. 396, Kallymenia reniformis var. Ferrarii Zanard. 

 Icon. phyc. adriat. tab. 93, fig. 4 et 5: fronde evidenter stipitata, 

 stipite brcvi in frondem obovato-cuneatam aut subreniformem longi- 



