PliaBozoosporlii.-v, [.nininiiriacose, Lossoiiia. 363 



rorinis vcl 'ilenuun: riiniosa: stipes (truncus) inlerne subteres, niox 

 (•onii)!anatiis. snporne planus, diehotome raniosus, ramulis ultimis 

 la.min;is geminatas, fissura adscendente laiiiiinp simplicis exortas 

 (■riiiiiiatis ; vesiculte nulliE. Lamime plns minns liiicari insiformes, 

 plaiia' ct eruKOsa\ margine <jlaiidulis sessilil)iis aiit iliMitiriilis ele- 

 vatis ornita'. ailnlti' sa';)iiH iiitrirn-riiiri'. S[)orangia elongato-el- 

 li[)si)i(lca, iiiia. cuiii [ia,ra|iliysilms chualis iiiarticulatis dense stipatis 

 in iiicilia laiiiina, iii iitraijiic [lagiiia, vcrsiis hasin maculas iiiagni- 

 tmliiiis iiiil.'f ■rmiiiata' f.>rma,ntia,. 



I, p. 150, (Itorddriii 

 Lcasonia Bi'rtcri)aiiii 

 n. oli. Kiirtz. S|i. |i, 

 082. — Stipito compresso, superne plano, deconqiosito-ilicliiitomn. 

 scgincntis in laminas (folia) ijisis vix diiplo latiores, linoares, an- 

 gustissimas. utrlnque attenuatas. margine late glandulosas aheun- 

 tihns. 



Hah. in oceano Pacifico ad llttora Chilensla (Binder, Suhr, Hh. 

 ZAN.\RriiNr ot Pernvlanas (P.uiexte, Guunow); ad «Tahlti» (Exp. 

 Nov.vR.\). — Frons multlpedalls, stlplte Inferne dlametro fere 22 

 imn,, teretluscnlo. marglnlhus autem duahus superne saltim promi- 

 nulis, per dlchotomias densissimas decomposito, segmentls senslm 

 tenuiorihus et magls compressis, ultlmis planis vix 2,2 mm. latitu- 

 dine superantlhus, apice in folium excurrentlhus. Laminaj 8-ir> 

 cm. longse, ad 4,5 mm. circlter latJB aut dlvisione nondum peracta 

 ns([ue 10-12 min. lat.e, fere omnino lineares, apicibus angustatis, 

 margine ilenticulls glandifiseformlhus sessllihus, latloribus quam 

 clcvatls, millimetrum latltudine fequantihus, obsltne. Color e casta- 

 nco nigrescens. Hiinanthalia Duri-il/a'i Bory Voy. Cor[u. p. i:'!^ 

 a cl. Areschoug ad hanc trahitur. 

 2. Lessonia nigrescens Bory Voy. CoriuIUe n. 1, tab. 5. Post. et 

 Paipr. Illustr. algar. pag. 2-1, t. IV et :i9, f. 11 et i:'.. Hook «.^ 

 Harv. Crypt. Antarct. p. 152, t. 167-168, J. Ag. Sp. I, p. 151. 

 Kuetz. Sp. [). 581, Aresch. Ohserv. phycol. V. p. 8. Laminaria 

 scis-sa Snlir In .\ct. Acad. N;it. Curlos. XVI II. suppl. t. I, Hohen. 

 ^leeralg. n. 162, Aresch. Phyc. extraenr. exslcc. n. 57. Lessonia 

 Bindcri Sonder. Laminaria ramosissima Lamour. et Chauv. teste 

 Knetzing. — Stipite compresso, superne plano, decomposito-dlcho- 

 tomo, segmentis in lamlnas ipsis multiplo latlores, lanceolato- 

 lineares. margine calloso-glandifiosas aut integerrlmas abeuntihus. 



