Siphonecu, Dasycladiacese, Cymopolia. 415 



brevioribus, ramulisque quaternis obovatis demumque fructiferis 

 cororiata. 



Aplanosporangia ita niisquam nuda at infra stratum corticalem 

 validiim iramersa; fila ipsa tranformata infra apicem articuli ba- 

 salis (iufra ejus verticem pigrum) ramulos laterales 4 in aplano- 

 sporangia abeuntes efficieatia. 



Aplanosporae jnsimul in colonias compositas conglomeratte, raem- 

 brana coramuni obtectae. 



1. Bornetella nitida (Harv.) Mun. Chalm. in Compt. rend. 29 Oct. i070 

 1877, p. 816, J. Ag. Till Algernes Systematik VIII, p. 156, t. III, 



f. 1-6, Neomeris nitida Harv. List. of Frieudly Islands Algae sub 

 n. 83, Sond. in F. Mueller Fragm. phytogr. Austral. suppl. sub 

 n. 978. — Characteres generis ; filamento axili, cylindraceo, inferne 

 denudato. 



Hab. in oceano pacifico calidiore ad insulas Amicorum (=:Fri- 

 endly Isl.) (Harvey) ad oras Novae Hollandise ad a Edgecombe- 

 Bay» (Sonder). 



2. Bornetella? capitata (Harv.) J. Ag. Till Algernes Systematik VIII, io7i 

 p. 156, Neomeris capilaia Harv. in Quart. Journ. raicr. scienc. 

 1879, XIX, pag. 439, List of Friendly Islands Algae sub n. 85. — 

 Stipitata; stipite cylindraceo, longitudine plantas obovato-globosa) 

 lere aequante. 



Hab. in oceano pacifico ad insulas Amicorura (Friundly Isl.) 

 (Harvey). — {(An a Bornelella nitida Mun. Chalm. sat di- 

 stincta? » 



CYMOPOLIA Laraour. [1816] Polyp. flex. p. 293 (Etym. cyma unda et 

 polios griseus), Harv. Ner. bor. Amer. III, p. 35, J. Ag. Till Al- 

 gernes Systematik VIII, p. 141, Craraer Verticill. Siphon. p. 39 

 (ubi structura verticillorum amplius describitur). — Thallus incru- 

 status, hinc inde ex axi nodoso-incrassato et secus unam planitiem 

 furcato-ramoso constans, nodis omnibus verticillis nuraerosis, arti- 

 culato-ramosis obsitis. Rarai in verticillis raediis valde evoluti ita 

 ut planta torulosa adpareat; rami verticill. singuli plerumque spo- 

 rangium terrainale (septo nullo discretum) et 3-7 raraulos steriles 

 (sporangiura cingentes) gerentes apiceque vesiculoso-inflati. Apice 

 vesiculoso-inflati insiraul in velura corticale unistratosura, ut in 

 genere Neomeride concreti. Sporangia obovato-globosa cum cel- 

 lula suffultoria arcte conjuncta; sporae (aplanosporse?) adhuc ignotae. 



