Cyclosporiiue, Sui'j4';iss;icecV, Seirucoccus. 131 



oiii;ili ;ixill;iri iil oro;i,ii;i (iiscrota «^a^rens. roliis ruiii (■^iiilc sulicdn- 

 lliiculihus (vcsiciilis iiullis). l<'()li;i iii(Uvis;i, hiuiiiui vciiic;iJi. lloce- 

 ]tt;icul;i ut ()ro;iii;i propiM;! ;i iiuiroinc utro(|uo axillaruui ouioryoiitia. 

 sul)siui[)licia. iiliforiui;!. toris siil)discrotis uu(li(i[Uo verrucosa. Sca- 

 j)lii(li;i iulra vcrruc;iruui superlicioui oxc;iv;it;i. s])li;cric;i. cuiu ostio- 

 lo su|)orlici;ili ])or c;iu;ilciii hrcvoiu couiuiuiiicauti;i, luonoica, li, e. 

 ;iutliori(li;i ot oooouia iu oodoiu rauiulo sed intra coucoptacula di- 

 stiucta evoluta. Oogoui;i uionospora, conferta, subsessili;i. Antheridia 

 v;i,ldo ramosa, parapliysihus r;uiiosis concoinit;tta. raraphyses elon- 

 gatcB, phisniate copioso f;irct;o. suhsiinpliccs. 



Ohs. Ev(3lutione frondis ciiui Sc//lot/ia/ia ;id uiiouoiu convenit. 

 C;iulis it;i(]UO ;iltoriio iu ])liyllodi;i aliit indivis;i suhintogerrima, 

 leviter pleruin(j[UO lalcata. Supr;i axillas phyllodiorum pinna? evol- 

 vuntur cauli conformes. Frons lioc modo alterne decomposito-pin- 

 nata evadit. Radix fihrosa. Caulis evidentiori coshl quaiii in proximis 

 iiistructus. Yesicuhe nulhe olisorvatte. Receptacula in utro(]ue axillie 

 iii;iroino nuinerosissima, emergentia, seriata, simplicia aut furcata, 

 liliformia undi(]ue verrucoso-intlata, toris suhdiscretis . J. Ag. 1. c. 



Genus lioc antecedentihus proximum, ovolutiouis divors;! norma 

 a Margiiiaria, dispositione et forina receptaculoruin a Scijtot/iatia 

 dignoscendum, cost;i (]U0(]ue (luani in illis evidentiori instnu-tum. 

 Omnia lisec genera affinia a Sargasso differunt evolutione rocopta- 

 culorum constantor margin;ili. 



1. Seirococcus axillaris (R. lU-own) Grev. Alg. Brit. Syn. p. XXXIY. 218 

 Hook. ot Harv. Alg. Tasni. n. 107. J. Ag. Sp. I, p. 260, A. L. Sniitli 

 in Murray Phyc. Mem. Vol. H, p. 32-34, t. X!, Fucus axittaris Turu. 

 Hist. ni, p. 28, t. 146, Cystoseira axillaris Ag. Sp. p. SO, Syst. 

 p. 291, Fucus scorteus Mert. niscr., Scytot/ialia a.cillaris Mont. 

 in Kuetz. Sp. p. 592, Oltni. Boitr. Kennt. Fucac. p. 02, t. XII, f. 8-10. 

 llab. ad oras Nov;e Hollaudice Tasinania?que (Buovvx, Labill.vr- 

 DiEUE, GuNN. H.\KVEY, J. Bii. ^YiLsoN, Agakdh). — R;idix fihrosa. 

 Frondes pluripedalos, inforne compress;e. inox phin;o, ejusdem fere 

 iihi(]ue latitudinis, decomposito-pinnatae, pinnis duplicis generis, 

 primaria? indivisiB pliyllodi;i constituentes. secundariie supra axillas 

 primariarum egredientes, frondi conformes et suhdivisco, proprie 

 ])iiiu;o nuncupand;c. Phyllodi;i ;iltorii;i. ;ingulo acuto orecto-p;itentia, 

 strict;i aut leviter incurv;ito-hilcata,, liiieari;i. 4-6,5-7 cm. louga. 2-5 

 milliin. lata, ocostata. ohtusiuscula, int(?gerrinia aut extrorsum doute 

 iiuo ;ilterove nirissimo instruct;i. Pinme (secundarico) supni axillam 



