34 Cyolosporiiife, Sargassacefe, Sargnssum. 



(luetris, ramulis retrofractis, foliis e latere plano egredientibus, in- 

 ferioribus obovato-lanceolatis. coriaceis, planis, integriusculis aut 

 distanter dentatis. superioribus lanceolatis, lamina insequaliter in- 

 cisa quasi erosis, supremis angustis ; vesiculis (sa^pe nullis) piri- 

 formi-ellipticis, aristatis ; receptaculis triquetro-prismaticis rectan- 

 gulis, marginibus undulatis, vix conspicue dentatis. 



Hah. ad oras « New South Wales » Novoe Hollandia^ e. gr. ad 

 « Port Jackson, Port Stevens.» (F. v. Mueller). — Folia infima 

 junioris planta3 fere lanceolata, vix 8 cm. longitudine aequantia, 

 castanea. coriacea, parum conspicue dentata, intermedia obtusiora 

 et fere obovata, dentibus marginis magis conspicuis. superiora ra- 

 mulos fulcrantia fere inciso-laciniata, ssepe sat in;e(iualia, sinubus 

 Jnter lacinias nunc profundioribus, hic illic fere costam attingen- 

 tibus, nunc folia fere duplicato-serrata efficientibus. Vesiculse (in 

 panicula fertili adhuc juniore evolutcTe) semine Pisi minores. Re- 

 ceptacula tri^iuetro-prismatica, marginibus leviter sinuosis aut mi- 

 nus conspicue denticulatis. Color plant^ie exsiccat?e nigrescens. 



50. Sargassum lacerifolium (Turn.) Ag. Sp. p. 15, Syst. pag. 398, [,o 

 Harv. Phyc. Austral. tab. 208, J. Ag. Sp. I, p. 300, Sp. Sarg. Au- 

 stral. p. 74. t. XXHI. H, Fucus lacerifoUus Turn. Hist. Fuc. IH. 



p. 82, t. 167, Carpacanthus lacerifolius Kuetz. Sp. p. 624, Tab. 

 Phyc. XI, t. 42?. — Caule communi teretiusculo brevi, rachidibus 

 ramorum acute tri^iuetris, ramulis retrofractis, foliis e latere plano 

 egredientibus, lanceolatis, membranaceis, costatis, inferioril)us magis 

 oblongis subundulatis subduplicato-serratis, superioribus magis li- 

 nearibus, plus minus profunde serratis : vesiculis magnis, subsphne- 

 ricis, folio aut mucrone superatis; receptaculis ambitu lancoideis 

 triquetro-prismaticis acutangulis, marginibus dentatis. 



Hah. ad oras austro-occidentales Novfe Hollandire (Brown). — 

 Folia ramorum sterilium inferiora eximie membranacea et subun- 

 dulata, lanceolato-oblonga, 10-12 cm. et etiam paullo ultra longa 

 et inferne circ. 2,5 cm. lata, sequentia lanceolato-linearia profun- 

 dius incisa, ramos superiores fulcrantia inciso-serrata, suprema de- 

 nique linearia ut plurimum serrata. Vesiculse semem Pisi magni- 

 tudine gequantes. Receptacula longiuscula, usque ad 9 mm. longa. 

 triquetro-prismatica acutangula, margiiiibus dentatis, dentil)UR di- 

 midiam latitudinem receptaculi vix metientibus. Color plantfe ju- 

 nioris exsiccat^e pallidus, adultioris fuscescens. 



51. Sargassum biforme Sond. in Bot. Zeit. 1845, p. 51, Alg. Preiss. 51 

 p. Ui, .1. Ag. Sp. J, p. oOl, lUdr. Alg. Syst. I, p. 67, Sp. Sarg. Au- 



