464 Phgcozoosporiiifo, Ai-throclailitieea', Chnoos[iora. 



Goniis incerta3 sedis, ArfliroclacUcc, ut videtur, proxinium, 



CHNOOSPORA J. Ag. [181-7] Alg. Liebm. consp. p. 7, Sp. I, p. 171 

 (Etym. chnoiis tomentum et spora semen), Kuetz. Sp. p. 569, De 

 Toni Syst. Uebers. Fucoid. 1891, p. 176. — Frons e cylindmceo 

 compressa, repetite dichotoma, ecostata, cellulis elongatis prismati- 

 cis in centro vix densioribus contexta. Fila fertilia clavato-moni- 

 liformia articulata densissime stipita sterilibusque ramosis longe 

 articulatis cincta, in verrucas juxta medium frondis dispositas 

 conjuucta; fructiflcatio fere Arthrocladice. 



Qhs. Frons, a radice callosa nuda surgit filiformis, sed e cy- 

 lindraceo evidenter compressa, marginibus rotundatis, repetite di- 

 chotoma. Cellulse valde elongatae angulatae et subprismaticse, in cen- 

 tro aliquantulum densiores, costam tamen veram haud constituen- 

 tes, interiores subinanes, superficiales minores colorataj. Verrucoe 

 in utraque pagina latiori frondis compressa3 prominentes, fere secus 

 lineam mediam longitudinalem disposit», filis densissime stipatis, 

 a peripheria frondis verticalibus constant. Fila verrucarum media 

 moniliformiter articulata et subclavata, articulis rotundatis nucleum 

 coloratum foventia, centralia rectiuscula breviora, his proxima in- 

 curvata et paulo longiora, omnia denique htec serie filorum ramo- 

 sorum longe articulatorum sterilium cincta. Fila moniliformia, si- 

 liquosis filis Arthrocladue evidenter analoga, zoogonidia e nucleo 

 transformato orta fovere, suspicari licet. Fila sterilia in exsiccatis 

 et madefactis arcte stepe invicem cohterent et cuticulam propriam 

 immo Demulantur. J. Ag. I. c. 



1. Chnoospora fastigiata J. Ag. Alg. Liebm. p. 7, Sp. I, pag. 171, m 

 Kuetz. Sp. p. 569. — Frondibus Ccespitosis a callo radicali nume- 

 rosis erectis decomposito-dichotomis fastigiatis, segmentis e cylin- 

 draceo compressis patentibus, axillis acutis. 



Hal). in oceano Pacifico ad littus mexicanum (Liebm.\n) ct 

 Atlantico ad oras Venezuel» (Binder). — Var. pacifica J. Ag. Sp. 

 I, p. 173, Chnoospora pacifica J. Ag. Alg. Liebni. p. 7, Kuetz. Sp. 

 p. 569, Tab. Phyc. IX, t. 86, f. I: fronde regulariter dichotomo- 

 fastigiata, segmentis omnibus conformibus nudis. In occano Paci- 

 fico ad littus Mcxicanum (Liebm.\n, Sondei!,). — Frondes ab expan- 

 sione radicali scutata nuda ca^spitosc proveniunt,mediocres,basi ima 

 indivisse, mox dichotomce, pcr totam longitudinem lequales, e cy- 



