318 Kii-FhjiMdciie, Cy&toelonio;o, CatLMiolI:i. 



(in individuis cystocarpiforis ol)vonientia) sphfGroidca, extus ruju- 

 losa, hyalina. 



Ohs. Frondes minutse, purpure;e et uiembranacece, pulvinato- 

 cffispitosae, reptantes, ramis nemp3 primariis decumbentibus radi- 

 cantibus, sursum sccundarios ercctiusculos m.oniliformiter constri- 

 ctos ct quasi articulatos, di-trichotomos, ab apice articuli emit- 

 tcntibus. Ramuli minuti, unico articulo constantes, cum ramis 

 egredientes, nunc acutiusculi nunc spliserico-obovati, fructiferi. 

 Constat frons filis nonnullis principalibus cylindraceis articuhitis 

 longitudinaliter excurrcntibus dichotomo-ramosis et anastomosibus 

 junctis; rami minores ex his egrediuntur, sensim magis horizon- 

 talcs donec superficicm versus in fila moniliformia plurima, exter- 

 num stratum muco cohibitum constituentia, abeunt. Articuli iii filis 

 iongitudinalibus cylindracei, in intormediis fero pyriformes, in filis 

 liorizontalibus rotundati. Cystocarpia in ramulis propriis latcrali- 

 bus, forma sph;ierico-oi)ovata (nec compressa) dignoscendis, nidu- 

 lantia, in medio ramuli sita et filis longitudinalibus nucleum in- 

 grodientibus et parce ambientibus suspensa, nucleum sphasricum 

 constitucntia, demum (sec. Harvey) per porum terminale carpospo- 

 ras emittentia. Carposporcie parciores, obovatse, c communi ccntro 

 radiantcs, ab endochromatc transmutato filorum articulatorum for- 

 matse. Tetrasporangia in ramulis consimilibus acuminatis evoluta, 

 inter fila moniliformia strati peripherici nidulantia, magna, oblonga, 

 zonatim divisa. J. Ag. Sp. II, p. 3.51. 



1. Catenella Opuntia (Good. et Woodw.) Grev. Alg. Brit. p. 166, t. 17, 622 

 Harv. Manuai p. 51, Phyc. Brit. tab. 88, Kuctz. Sp. p. 7-21, J. Ag. 

 Sp. II, p. 352, Epicr. p. 588, Hariot Algues (Mission du Cap Horn) 

 p. 90, n. 185, Gibson loc. cit. (descriptio cystocarpiorum ot authc- 

 ridiorum), Buffham in Journ. Quekett Micr. Club 1888, pag. 2G1, 

 t. 21, f. 10-11 (antheridiorum descriptio), Fucus Opuntia Good. et 

 Wood. in Linnean Transact. III, p. 219, Stackh. Ner. Br. p. 42, 

 tab. 10. Turn. Hist. Fuc. Tab. 107, Halymenia? Opuntia Ag. Sp. 

 Alg. I, p 217, Syst. p. 245, Chondria Opuntia Hook. Fl. Scot. II, 

 p. 106, Gigartina Opmitia et Gigartina pilosa Lamour. Ess. p. 49, 

 Rivuluria Opuntia Sm. Engl. Bot. t. 1868, Fucus repe^is Lightf. 

 Scot. II, p. 961, Fuctis ca'spitosus Stackh. Ner. p. 23, tab. 12, 

 (JlDa articalata ,3 Huds. Fl. Angl. p. 569, Lomentaria Opuntia 

 Gaill., Chordaria Opuntia Spreng. — Fronde surculis procumben- 

 til)us roptante, pulvinato-caespitosa, articulato-constricta 2-3-cho- 



