17-1 Cyclospoi'iiife, Sargnssaccfn, Cystoseira. 



Jhih. iu ocoano Atlantico ab oviw An;ili;v et Gallia' us(|ue ad Tin- 

 .uin ; ctiani ad ora,s Guiana? Aineric;e meridionalis (Aublet). — C;il- 

 liis i-;i(lic;ilis dificiforniis exp;xnsus ;xinpliusculus. C;iulis us(|ue p(^- 

 (l;ilis. coniprcssus. 4 inilliin. ot ultr;i hitus. •} inilliiii. cnissus. r;i- 

 inos distiche eniittens eorunive resiiluis ;iltcrnis ohsitus. Foliajii- 

 niora plana. costat;x. eglandulosa, integerrini;i. simplicia vel rarius 

 furciita. linearia, suprema ;ingustissima. Riimi elong;iti pedales et 

 ultra, pinnato-raniosissimi. nunc foliis dense vestiti, nunc eorum 

 residuis subspinulosi. Vesicuhi. ,■ sphiiTicn (■liips(.idc;r. ninguitu- 

 dine fere seminis Vicia'. s;i'|)ius cclcrii frondc cdhu-e p;illidiores, 

 nunc iii iidcriore niiiiiiloruui pai-tc solitarife, minc paiic;Te distanter 

 subconcatcn;it;c. uiinc oiuiiind niilhi'. Receptacula circiter 20-t2i 

 milliin. loug;i. \erriicoso-lllilViriui;i. foliis suhspinuliformibus ple- 



1(). Cystoseira osmun-Jacea (Menz.) Ag. Sp. p. (ii». Syst. p;ig. '287. st? 

 Fifciis ns/tm/iddcexs Menz. in Turn. Hist. fiic. tah. 1(1."). IlaH- 

 ilri/s os/irwulricca H;xrv. in Beechey"s \'oy;i^c. T.ot.. pag. 4(17, J. 

 .\g. Sp. I. p;ig. '2;'.7. l\uct/. Phyc. gcner. pag. ;'>•")',•. Sp. pag. (.i()4, 

 ih. (;■.>. f. 11. Sfrj)iii(,inri/s/is ns/uundacea 

 is (lciii niii-dl. Th. (1. still. Oc. p;ig. 12 

 11 r.ot;inisk;i Xotiser lS7(i. u. :'.. pag. 7'2, 

 -vst. is-M. ,1. Ag. Sp. 1, pag. '2-26, Blns- 

 is|.">. si/-t,jiiii/\a/is expansa Kuetz. Sp. 

 it//iisii II;irv. in neecliey"s Voya.ge, Bot., 

 '<il//s Dnin//asii Kllct/. Sp. pag. GO;i. Cy- 

 Svst. p;ig. 2!l(l. .1. A,-. Sp. I. p;lg. •^'^(i, 

 Trcv. isi.'). — Fronde ;incipite bipinii;it;i, 

 iiiiis hiti' huieeolatis piniuitifidis, laciniis 

 •ihiis in vesiculas lancoideas moniliformi- 

 ;ihcuntihus. rccept;iciilis divisis vesicuhun 

 llltilli;illl Scrici liiuhri;illtihus. 



lla/i. in Oceano P;icifico ;iil oras .^incric;!' horciUis, ad Portum 

 Triiiil;itis (Menzies), ad CaIiforni;im l(()r(;i..vs, H.mvEY. Wosnessex- 

 sKi, Rupreoht). — Frons magnitudiiie insignis. Ciillus radic;vlis 

 disciforniis, crassiis. Caulis ex hoc adp;ir;xtu iulfixionis exsurgit nuiic 

 implex et sii])eriie cicatricibus nmio- 

 iii.uiihii-i iuoilo diiiiorphiis: rami infe- 

 foniii's. co^i iii. ;iltcrne iiinnatifidi vel 



inioruiii r..liiforniiuiii ex(U'fi, fenues. 



