Cvclotsiioriii;!', Sargassaceaj, Surgariiiiim. 17 



dicliotonio-decompositis; laciiiulis foliorum inrcnorum anf;usto li- 

 noai-ii)us c.ostatis, folioruni superlorum torotiusculis filiformibus, 

 proptcr cryptostomata prominula vorruculosis ; vosiculis in ranuilo 

 sa^pc solitariis, spha?ricis, muticis; receptaculis lancoideis inormilxis. 

 Ilab. ad oras NoviB Hollandia% Tasraania' ot Nova; Zelandiaj. — 

 Vesiculaj juniores subaristata'. adnlt.r s;i|i(' nuitica), semine Pisi 

 fere majores. Receptacula in r;iniiil(j inrilid provenientia laxius 

 fasciculata, lonfj;iora ([u;ini iii Surya^sa Iridtophijllo .1. Ag. ct iiiagis 

 lancoidea, verrucoso-inermi;i. 



Tribus V. Dimorpha) .1. h'^. I. c. p. 54: Frondibiis a caule commuiii tere- 

 tiusculo quoquoversum exeuntibus, seiisim adscendcntc ordine transmutatis,foliis 

 omuium decoinposito-dicliotoniis, infenoribus junioris pjanta; latioribus, la- 

 eiiiiis linearibus, superioribus adultioris plautai angustissime tiliformibus; vc- 

 siculis majoribus spb.Tricis muticis ; reeeiitaculls verrueosis iuermibus nunc 

 in ramulo paniculatis, adultioribus pedicellatis subsin^ulis, nune fere cymosis, 

 ramosis, ramis ad divisionem pronis. 



14. Sargassum piluliferum (Turn.) Ag. Sp. p. 27, Syst. p. 303 (excl. 

 synonyin.), J. Ay. Sp. 1, ji. 289, Sp. Sarg. Austral. p. 55, Kuetz. Sp. 

 p. 616, Tab. Phyc. XI, t. 33, Farl. Anders. & Eaton Alg. exsicc. n. 102 !, 

 Fucus pilulifer Turn. Hist. Fuc. tah. 65, Fucus debilis Labill. Pl. 

 Nov. Holl. tab. 259?'?. — Frondibus a caule communi teretiusculo 

 (luoquoversum verrucoso exeuntihus, rachidibus ramorum teretiu- 

 sculis inferne plus minus muriculatis, nunc sparsim inermibus. 

 foliis omnibus decomposito-dichotomis. inferioribus planta» adultio- 

 ris anguste linearibus tenue costatis, superioribus filiformibus ; 

 vesiculis sphaericis, muticis, petiolo longiori suffultis; receptaculis 

 lancoideo-cylindraceis, inermibus, in ramulo paniculatis, adultiori- 

 bus singulis pedicellatis. 



Hab. in Oceano pacifico superiore ad littora ,T;iponife (HoRiNEk) 

 et Californise (Anderson). — Caulis crassitie penna; scriptoria?, 

 pluripollicaris ; rachides inferne dilatatse (luasi partem caulis aiii- 

 plectentes, pluripedales. Receptacula ad 4 mm. longa, in paniculam 

 brovcm (lisposit:i; vesiculas semen Pisi magnitudine vix sequantes. 



15. Sargassum Desfontainesii (Turn.) Ag. Sp. p. 25, Syst. p. 302, .1. 

 Ag. Sp. I, p. 339, Sp. Sarg. Austral. p. 55, Fucus Desfontainesii 

 Turn. Hist. Fiic. III, tab. 190, Fucus comosus Poir. Encycl. VIII, 

 p. 375?, Fucus cJmtophi/llus Mert. mscr., Sargassum comosum 

 Mont. Canar. p. 135, Kuetz. Sp. p. 616, Tab. Phyc. XI, t. 35. — 

 Frondibus a caule teretiusculo exeuntibus, rachidibus filiformibus, 



2 



