C\cl()s|i(irih;r, S;ii'j^;iss;ic(VX), Siirgassuill. 51 



condensatum Soiul. Al;^^ Tro}). .Vusir. n. 15. — Rachidibus raiuo- 

 riiiii teretiusculis lovibus (iuo(|uoversuin ramosis, foliis a basi cu- 

 iieata utrinque «(luali dilatatis obovato-ellipticis, ^.^frosse arguteque 

 dentatis, crassiusculis evanescenti-costatis, cryptostomatibus admo- 

 dum conspicuis subpluriseriatis ; vesiculis in petiolo compresso 

 ipsarum loii;j;itudiuo sphiericis muticis ; receptaculis axillaribns cy- 

 uiam densissimam formautibus, rainis siugulis (in adultioribusj 

 superne dontato-spinescentibus. 



Hah. ad oras Novae Hollandioe (Labillakdiere) ; ad insulas 

 Admirantes (Gaudichaud, Dickie). — Folia 4-5 cm. longa petiolo 

 4-4,5 mm. longo fulta. latiora usque ad 1 cm. lata. Vesicukie ma- 

 gnitudinem circiter semiuis Pisi metientes. 



** Ci'y[)tostoraatibus foliorum parum conspicuis aut minutis aut ferc nullis. 



79. Sargassum marginatum (Ag.) J. Ag. Sp. I, p. 324, Sp. Sarg. Au- 79 

 stral. p. 91, Kuetz. Sp. p. 627, Sargassum, ilicifolium var. /3 

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

 inferne complanatis, superne fere teretiusculis et filiformibus, ra- 

 mulos quo(iuoversum emittentibns. foliis elliptico-oblongis snbeva- 

 nescenti-costatis sparsim obsolete glandulosis, repando-dentatis aiit 

 integriusculis ; vesicnlis in petiolo dilatato ipsis sulibreviore sphtE- 

 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 compress?e et fere plana^,, 

 superne filiformes, ramis distantioribus pyramidatis obsitiB. Folia 

 circiter 2.5-3 cm. longa, 9-12 mm. lata, basi abruptius attenuata, 

 apice ohtusissima. costa infra medium evanescente et cryptosto- 

 matibus minutis sparsis instructa, plerumque obsolete dentata, 

 dentibus juniorum evidentioribus. Vesiculae magnitudina^ in?eqnales, 

 majores Pisi semen aequantes minoribus mixtoe, juniores in folio 

 ssepe parum mntato inflatjie, adultiores tenuiori margine cinctaj, 

 petiolo compresso. Recoptacula axillaria folio fulcrante plus duplo 

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

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

 margine serrato-dentatis. Color plantie exsiccat^e in castaneum 

 vergens. 



80. Sargassum cristaefolium Ag. Sp. p. 13, Syst. p. 297. .T. Ag. Sp. so 



