334 Eu-Floi-idoa", CysbM-loiiifoe, Eui.li(M'a. 



Ohs. Fromles rosea^, plernin(|iie mediocres, pro m lo-nitiuline te- 

 naces, meinbranacese, decomposito-carnosas, vage di-polycliotomse 

 ant segmentis lateralibus niinoribus subpiimatse; segmenta liuearia 

 aut subcuneata, superiora angustiora, ssepe denticulis aut sogincntis 

 minoribus lateralibus obsita. 



Suhyeu. I. Euthora J. A2:. Si». II, p. 385, E|iiei'. [i. 360: fi-oiiilc i)Iaii,'i meni- 

 branaceo, strato eorticali celjnlis vcrticalilms fere unica serio dispositis 

 constante. 



1. Euthora cristata ^L.) J. Ag. .\lg. Liebm. p. 11, Sp. 11, p. o85, Lpicr. (;43 

 p. 360, Wille Morph. og physiol. Studier over Alger p. 107, t. II 

 (structura frondis), Kjellm. Alg. of Arctic Sea p. 145, Fucus cri- 

 status L.jTurn. Hist, Fuc. t. 23, Sphwrococcus cristatm Ag. Sp. 

 Alg. I, p. 300, Syst. p. 231, Lyngb. Hydr. p. 13, t. 4, Grev. Scot. 

 Crypt. Fl. t. 85, Rliodymenia cristata Grev. Alg. 13rit. p. 80, 

 Harv. Phyc. Brit t. 307, Chondrococcus cristatus Kuetz. in Bot. 

 Zeit. 1847, p. 23, Callnphyllis < ristata Kuetz. Sp. p. 747, Tah. 

 Phyc. XVII, t. 93, Fucus coccineus var. pusillus Wahlenb. Fl. 

 Lapp. pag. 500, Nereidea cristata Rupr. Alg. Ochot. pag. 255. 

 — Fronde subflabellata, dichotomo-pinnata, segmentis pluribus ssepe 

 adproximatls, linearibus cuneatisque, terminilibus angustiorlbus : 

 cystocarpiis marginalibus ; tetrasporangiis in apicibus incrassatis 

 segmentorum collectis. 



Ilab. m Algis majoribus, rarius in lapidibus conchisve iii oceano 

 Arctico ad Nordlandiam, Foeroas, Islandiam et Groenlauiliam. in 

 oceano Atlantico usque ad Scotiam et littora Bahusise descendens: 

 ad Terram Novam (De la Pylme) et littus Americse usque ad Cap. 

 «Cod» (sec. Harvey). — Frons in speciminibus europseis vix 2-5 cm. 

 supcrans extensione, in americanis (sec. Harvey) 5-12 cm. longa, 

 ambitu subflabellata, plerumque fastigiati, ramiflcatione inter pin- 

 natain et dichotomam intermodia. Seginenta inferiora pleruni']ue 

 cuneata, sensim linearia evadunt, intermedia non raro polychotoma. 

 terminalia angustiora insequaliter dentata, dentibus supra sinum 

 rotundatum introrsum nullis aut paucis, extrorsum s;epe densis, 

 simplicibus aut ipsis compositis. Cystocarpia a margine inflato orta, 

 spluTorica, semina Papaveris magnitudine vix sequantia. Tetraspo- 

 rangia in apicibus incrass-atis collccta, cruci-atim (?) divisa, intn* 

 cellulas fere in fila evolutas nidulantia. Color pulchre coccineus. 

 Substantia membranacea flrina. — forma piinata Kjolhn. Om Be- 

 ringhafvets Algflora 1889, p. 27: frondo quam in f. typica altiorc 



