



nhodymenia. RHODYM&RI&B. 383 



Splui'roi'occus intcrruplus Grcv. I. c. lab. \\YIpy.\\ Kiilz. sp.p. 783. 

 Rhodomenia intcmipta Grev. Syn. in Alij. liiit. pay. XL] III! 



Iliih. in niiiri arctico (W. N. Griflillis). 



"Frons subpcdalis, plana, membranacea, Icncra, mmiiiiu ecoslala el. 

 enervis, lalitiulinc circiter unguicularis, singulariter interrupta, nunc vel 

 subcontinua vcl sinuata. mine quasi ex scgmcnlis subcunciformibns basi 

 angustis serialiin composila, ab i[),sa basi vage rainosa. Kami divaricati 

 vel eliain pateiitissimi, roiuoti, valdo obtusi, quandoijue retusi, ultimi in- 

 tordum palmati. Fructiticalio ignola. Color ruber, nunc ad roseum in- 

 tension ct ad fuscum acccdens, praoscrlim extrcmitates versus dilntior." 



Specimen plants distinctissinuc in Fib. D:nap. Griffiths olimvidi; stru- 

 tura et fructu hodieduin ignolis, illam Uliodymenia, 1 spccicm dubiam con- 

 siderare coactus sum. 



15. UHOD. TUXEFORMIS (Bert. Am. Hal. p. 224) f rondo membrana- 

 cea tcnuissima, so-jiuontis obovatis petiolalis subintc^ils, nuir- 

 gine supcrioro proliferis. 



Fucus tunaaformis Bert. I. c.! 



Rhodymenia tuntcformis Zan. Sa<j<j. p. 47! 



Sphasrococcus tunaeformis Kulz. Sp. Alt/, p. 782. 



Opuntia di membraua finissima Ginn. Op, Post. \ p. 2o tab. 25 /fy. 29. 



llab. in nipibus inaris Adrialici. 



Color plantar rubens. Nee specimen, uec tabulam Ginanni videre 

 mihi licuit. An I'byllophora' species? 



46. Ru. CUASSA (Zan. Sagg. p. 46) nondutn descripta. 



17. RH. LUSORIA (Grev. in Hook. Comp. Eot. Mag. II. p. 329. Hook, 

 et Harv. Lond. Journ. IV p. 544) dcscriptam non \idi. 



LVIII. EUTHORA J. Ag. Ahj. Liebm. p. M ref. Splucrococci, 

 I!hodyiucnia3, Chondrococci , Callophyllis ct Sticlopliyllis sp. 

 Auct. 



Krons merabratiacea plana dichotomo-subpinnata, slralis duobus con- 

 toxla; Miterroribus collulis oblonjjis ma^nis, supcrlicialibus co- 

 loralis subsimplici sm'ic dispositis. Cystocarpia marginalia 

 subsplucrica, pcricarpio clause conccntrico colluloso, hinc radiato, 

 munita, lila fjeiiiinidiifora |>Iiirima, a placenta ccntrali lilis sim- 

 plicinsculis ad poricarpimn oxtonsis suspensa, radialim i-inillon- 

 tia; lilis fortilibus intra arliculos supcrioros yommidia rotundala 

 coiifjlobata fovcnlilms. Spltcerospora' in apicibus incrassatis 

 collects, cruciutim 



