1'hoeozoospoi'iiise, I.aniiiiariaooro, Macrocystis. 371 



MACROCYSTIS A- [ISilJ Sp. 1. p. U!, Sy.st. p. XXXVIII, Ilev. Al- 

 -riioall. Miioroc. iii Actii Ac. Leop. Ciiml. Vol. XXI, 1, l.S;>!3j, p. 

 '.'Sl (Etyni macros niagnus ct cysHs vcsic:i.), Kuetz. Piiyc. fjfcncr. t. '.Vl, 

 1". II, Sp. p. 582, J. Ag. Sp. I, p. 153, Ai-e.sch. Ol)serv. pliycol. IV, 

 p. 21, H. Will in Hotan. Zeitung 1884 (anatomia), 0. Roscntiial 

 iii Flora 18iK) (anatomia), De Toni Syst. Ucbcrs. Fucoid. 1891, 

 p. 177, Kjellm. in Engl. & Prantl Natiirl. Pflanzenfam. 07. Lief. 

 p. 3G0, Fuci, LaMinari(V, Lesso^iic' sp. auct. — ilinlix tercs, ra- 

 inosissima, cajspitosa, orbe lacunaruiu miicitcni.riim in cortiiH) et 

 sa>pe lacunis spai'sis in centro pra'(lita. Trunci iiiiiic c rliizom;i,tc 

 muic directe e radice exeuntes, infcrnc paulluluiu raniosi. supcriic 

 simplices, longissimi, unilateraliter foliilVri; cortc.K teiiu is, siiuania- 

 tim abjectus; orbis lacunarum miicirrr.iriiiu intra corticcm pr.e- 

 sens, lacunis magnitudine, ordine ct lnco variantibus, mcdulla, e 

 lili.s cclliilariliiis tcnuioribus crassioribusque implicatis constans, 

 i|iioruiii lciiuissimi rami horizontaliter inter fila cellularia et longi- 

 tudinalia pro.Kima contextus firmioris (ligni Aresclioug) intrant ea- 

 demque circumcirca investiunt ut medulla canalibus cincta videa- 

 tiir, in sectione transversali punctum centrale ostendentibus, ma- 

 tcrite incluss forsan indicium. Folia (laminre) in trunco unilatera- 

 liter superimposita, petiolata, petiolo apice vesiculam gerente; 

 lamina in apice vesiculte sessilis, simplex, oblonga, saspc longitu- 

 (liualiter plicato-rugosa, rarius fere plana et sa^pissime margini- 

 Inis ciliata. Folium in trunco terminale latius breviusque, inferio- 

 ribus dissimile, lateraliter a basi in apicem scissum in lacinias pla- 

 iias in folia inferioribus similia sensim excresceutes. Sporangia cum 

 paraphysibus clavato-truncatis inarticulatis in foliis dcmersis propu 

 radicem macul.is seu soros formaj variaj formantia. 



1. Macrocystis angustifolia r.ory in Dict. class. X, p. 9 (.1/. angusli- 

 /olius, quoad specimina chilensia). J. Ag. Sp. I, p. 156, Aresch. 

 Observ. phycol. IV, p. 23, Post. et Rupr. Illustr. Alg. tab. V, Ma- 

 crocystis angustifrons Bory Voy. Coquille n. 8, tab. 8, Macro- 

 cystis zostcra'folia Ag. Revis. p. 21, t. 28, f. 13, Macrocystis pi- 

 rifera var. angustifrons et var. zosterKfolia Kuetz. Sp. p. 583, 

 Facus piriferi(,s Esp. Fuc. t. 124? (non Turner). — Rhizomate 

 plano, laciniato, supra ca^spitem radicuin efluso, intus utrinque 

 serie lacunarum muciferarum lateribus parallela ornato, e margiui- 

 bus utrinque radices et truncos Iongissim(Js cauliformes emittente 

 compressos vel planos, in sectione transvcrsali intra corticem orbem 



