Scr. Rhodosperme^. Fum. SjJutrococcoidcai. 



Plate CCXV. 



HERINGIA FURCATA, liarv. 



Gkn. Chau. ^ywj^ cartilaginous, filiform or compressed, subdichotomous, 

 fastigiate, composed of two strata surrounding a central, articulated 

 filament ; the inner statum of ovoid cellules, diminishing toward the 

 surface, and set in erecto-patent, moniliform, excurrent series ; the 

 cortical of minute, coloured, vertically seriated cellules. Fructifica- 

 tion : 1, external cystocarps {coccidia) containing, within a thick peri- 

 carp, minute, oblong spores, set in moniliform, fastigiate filaments, 

 rising from a basal placenta; 2, oblong, zonate tetraspores, immersed 

 in the periphery of the frond, below the apex of the segment. — 

 Heringia (/. Aff.), in honour of Dr. Hering, a German algologist. 



Frons cartilafmea, fUforriiis v. compresm, subdichotoma, fastigiala, dnplici 

 strato tubiim artlcnlatnm centralem ambiente contexta ; strata interna cdlulis 

 ovoideis versus superficiem. minoribus in fiUs ramosis erecta-patentibus monili- 

 formibus excurrentibns ordinatis, corticali cellidis minimis colaratis verticaliler 

 seriatis. Fruct.: 1, coccidia intra pericarpimn crassum sporas ndnutas ob- 

 longas infilis moniliformibns fastigiatis e placenta basalt egredientibus ordi- 

 nntas faventia ; 2, tetrasporce ablonga, zonatim partita, in peripheria frondis 

 infra apices ramoruni immersee. 



Heringia furcatn ; frond terete, repeatedly forked, the divisions erecto- 

 patent, with rounded axils and acute apices; conceptacles lateral, 

 scattered, subsessile. 

 H. furcata ; fronde tereti pluries f areata, divisiiris erecto-patentibus, axillis ro- 



tundatis, apicibus acutis ; coccidiis lateralibus sparsis. 

 Heeingia furcata, ITarv. Alg. Austr. Exsic. n. 3il. 



Hab. South Australia, Dr. Curdie. Port Phillip Heads, W. 11. 11. War- 

 nambool, //. Watts. 



Geogr. Distr. South coast of Australia. 



Descr. Root ? Frand terete, fiHConi], thickened at base or rising from a short, 

 cylindrical, undivided stem (which is 1| lines in diameter, and an inch or 

 more in lcn^•th), multipartite, 4-6 inclies or more in length, somewhat 

 flabelliform, fastigiate, either regularly dichotomous, many times divided, 

 or, in old fronds, the larger segments often throw out from their sides 

 dichotomously divided, i'astigiate branches. The frond throughout is 

 nearly of equal diameter, about twice or thrice as thick as hog's-bristle. 

 Cgstocarps globose, subsessile or minutely pedicellate, distributed along tlic 

 sides of the branches, solitary or several together in sccund order, each 



