Cyolospoi'iii;i', S;irj,';i.ss;u'f;c, Sar^rassiini. 51 



rondenmtum Soml. Al^;. 'rniii. .\iisti- n. 1."). — llachidibus ramo- 

 riun tcretiusculis lcvilius qiKHiuovcrsuin nunosis, foliis a basi cu- 

 neata utrinque iuquali dilatatis ol)Ovato-ellipticis, ^rosse arguteque 

 (lentatis, crassiusculis evancscenti-costatis, cryptostomatibus admo- 

 duin conspicuis suhplurisoriatis ; vesiculis in petiolo comprcsso 

 ipsaruin loiit,'itudine s|)iin'ricis muticis; receptaculis axillaribus cy- 

 iiiani donsissiinain roriaantibus, ramis singulis (in adultioribus) 

 superno dentato-spinescentibus. 



Ilab. ad oras Nov;u HoUandiie (Labillaudiehe) ; ad insulas 

 Adniirantes (G.u-nicuAnn, Dickie). — Folia J-.l cm. loiip;a potiolo 

 -t-4,5 mm. loufiO fiilta, latiora nsquc ad 1 cm. lata. Vesicuke nia- 

 giiltudinom circitor soiuiiiis P/si metiontos. 



** Cryiitostoinatihiis iblionim iiariim coiispicuis aiit niiinitis aut fcro iiullis. 



79. Sargassum marginatum (Ag.) .T. Ag. Sp. I, p. 3-:J4, Sp. Sarg. Au- vj 

 stral. p. 91, Kuetz. Sp. p. 027, Sm^gassum ilicifolium var. /3 

 marginatum Ag. Sp. p. 12, Syst. p. 296. — Rachidibus ramorum 

 inferne complanatis, superne fere teretiusculis et filiformibus, ra- 

 mulos quoquoversum emittentibus, foliis elliptico-oblongis subeva- 

 ncscenti-costatis sparsim obsolete glandulosis, repando-dentatis aut 

 integriusculis ; vesiculis in petiolo dilatato ipsis subbreviore sphw- 

 ricis muticis, margine tenuissimo et subintegerrimo cinctis ; recepta- 

 culis subplanis, dentatis, furcato-ramosis, ramis demum subpedicel- 

 latis, in axilla laxe agglomeratis. 



Hab. in oceano Indico (Hb. Agardh); ad Bataviam (Hb. Are- 

 schoug). — Rachides pluripedales, inferne compressse et fere plaufe, 

 superne filiformes, ramis distantioribus pyramidatis obsitaj. Folia 

 circiter 2,5-3 cm. longa, 9-12 mm. lata, basi abruptius attenuata, 

 apice obtusissima, costa infra modium evanescente et cryptosto- 

 matibus minutis sparsis instructa, plerumque obsolete dentata, 

 dentibus .juniorum evidentioribus. VesiculiB magnitudinas inaequales, 

 majores Pisi semen iequtintes minoribus mixti^, juniores in folio 

 ScBpe parum mutato infliitte, adultiores tenuiori margine cincta?, 

 petiolo compresso. Receptacnla axillaria folio fulcrixnte plus duplo 

 breviora, furcato-ramosa cymosa, ramis demum pedicellatis, sub- 

 planis, 6,5-7 mm. longis et 2 mm. vel paullo ultra liitis, linearibus, 

 margine serriito-denttxtis. Color plantte oxsiccatiTe in Ciisttuieum 

 vergens. 



80. Sargassum cristaefolium Ag Sp. p. 13. Syst. p. 297. .J. Ag. Sp. so 



