702. 
AUSTRALIAN AND TASMANIAN ALGAE. lv 
delicatulum, Harv. ; pusillum, arachnoideum, filo primario repente, se- 
cundariis erectis (vix uncialibus) parum ramosis e quoque geniculo plumu- 
latis, plumulis oppositis per paria decussatis infra apicem articuli egre- 
dientibus tenuibus laxe pinnatis, pinnulis inferioribus  seepius oppositis, 
reliquis alternis e rachide flexuosa emissis omnibus attenuatis simplicibus 
y. ramulo uno alterove auctis. Harv. in Trans. R. I, Acad. xxii. p. 560. 
Has. Parasitic on Solierta australis. King George’s Sound. 
708. flaccidum, /Jook. f. and Harv. (Fl. Antarct. ii. p. 490, t. 188. f. 1.) 
704. 
Has. Geelong, Port Philip. Tasmania. (New Zealand. St. Martin’s 
Cove, Cape Horn.) 
Turneri, 47. (J. Ag. Sp. Alg. ii. p. 23.) 
Has. Port Arthur, Tasmania, 7. 7. H. (Atlantic and Mediterranean 
shores of Europe. North America.) 
Sect. 6. Punvinata.—Frons nana, rupestris, articulata, dense cespitosa, 
varie ramosa. 
705. thyrsigerum, Tw. ; filis primariis repentibus, secundariis erectis ciespi- 
tosis capillaribus (1- ie -uncialibus) vage ramosis, ramis minoribus szepis- 
sime secundis filiformibus simplicissimis acuminatis, articulis diametro 
3-5-plo longioribus cylindraceis, tetrasporis circa genicula suprema ramo- 
rum verticillatis pedicellatis, pedicellis ramosulis thyrsoideo-paniculatis, 
favellis terminalibus involucratis. Harv. in Trans. Rk. I. Acad. xxi. p. 
O59. 
Has. Parasitic on Alge and Zostera. Rottnest Island, Western 
Australia, and King George’s Sound. [Nearly allied to Call. (Griffithsia ?) 
tenue, J. Ag.] (Ceylon.) 
706, floridulum, 47. (J. Ag. Sp. Alg. ii. p. 19.) 
Has. Western Port, Victoria, W. H. H. (Shores of Europe.) 
707. eymosum, Harv. ; densissime cespitosum, filis primariis repentibus 
intricatis, secundariis erectis arachnoideis (uncialibus) vage ramosis, ramis 
subdichotomis y. alternis, minoribus filiformibus erectis Tonge simplicibus 
obtusis, articulis diametro multoties (8—12-plo) longioribus cylindraceis ; 
tetrasporis in cymulis veris zequalibus v. scirpoideis secus ramos dispositis, 
favellis ? 
Has. On sand-covered rocks. Rottnest Island, Western Australia, and 
King George’s Sound, W. H. J. 
Sect. 7. Parasitica.—Parasite nane v. minima, frondibus articulatis 
allerne ramosis. 
708. minimum, //a7v. ; parasiticum (vix lineam altum), fronde erecta solitaria 
disticha pinnatim ramosa, ramis alternis erecto-patentibus dissimilibus, aliis 
simplicibus, aliis secunde pectinatis v. bipectinatis, articulis diametro sesqui- 
longioribus. 
Has. On the ramenta of Caulerpa Harveyi, at Port Fairy. 
709. sparsum, //arv. (Phyc. Brit. t. 297.) 
Hap. On Sporochnus scoparius, at Garden Island, Western Australia. 
(Specimens not in fruit.) 
710. botryocarpum, Hoary. ; nanum, penicillato-ceespitosum, filis minutis (1- 
lineas altis) e basi ramosissimis, ramis alternis vy. secundis patentibus 
flexuosis nunc subsquarrosis, articulis diametro 4-plo longioribus, tetra- 
sporis magnis triangule divisis in glomerula ad axillas ramorum densissime 
