Ser. RHOpDOSPERME. Fam. Ceramiacee. 
Puiate CCLITI. 
CORYNOSPORA AUSTRALIS, dav. 
Gen. Cuar. Frond filiform, dichotomous, pellucidly articulate, monosi- 
phonous. Fructification: 1, involucrated favelle, containing within 
a hyaline envelope numerous angular spores; 2, obovate-pyriform 
naked ¢e¢raspores (?), formed out of terminal articulations, and having 
an undivided nucleus.—Corynosrora (J. dy.) from xopuvy, a club, 
and o7ropa, a spore. 
Frons filiformis, dichotoma, pellucide articulata, monosiphonia. Fruct.: 1, fa- 
velle involucro ramuloruimn inciroatorum cincte, intra periderma hyalinum 
sporas plures angulatas foventes ; 2, tetraspore (?) morphosi articuli terimi- 
nalis formate, obovato-pyriformes, ue nucleum indivisum continentes. 
Corynosvora australis; frond setaceous, gelatinoso-membranaceous, di- 
chotomous-decompound and alternately ramuliferous; branchlets se- 
veral times forked, the lesser ones very slender; apices much atte- 
nuated ; articulations of the branches very long, not contracted at the 
nodes ; tetraspores oblong, subsessile. 
C. australis; fronde setacea (biunciali) gelatinoso-membranacea ; dichotomo- 
decomposita et alterne ramulifera ; ramulis pluries furcatis, minoribus lenuis- 
simis; apicibus attenuato-arachnoideis ; articulis ramorum longissimis ad 
genicula nec contractis ; tetrasporis oblonyis, subsessilibus. 
Corynospora australis, Harv. in Trans. R. I. Acad. v. 22. p. 559; Aly. 
Austr, Exsic. n. 
Has. Parasitic on various Alge, rare. Rottnest Island, WH. H.  Fre- 
mantle, Western Australia, G. Clifton. Port Philip, Dr. Muedler. 
Geocr. Distr. Western and southern coasts of Australia. 
Deser. Loot a small dise. Fronds tufted, 2-3 inches high, as thick as hog’s 
bristle at base, much attenuated upwards, soon becoming capillary, and thence 
attenuated to an excessive cobwebby fineness, repeatedly dichotomous, the 
upper branches beset with short lateral branchlets. ranchlets 2—4 lines 
long, very slender, several times regularly forked, the apices much drawn 
out and excessively slender, subacute. Ze¢raspores formed in the axils of 
most of the upper forks, oblong, scarcely pedicellate or subsessile, with an 
undivided dark-red nucleus. Articulations of the larger branches many 
times longer than broad, with a narrow endochrome, cylindrical, not cou- 
tracted at the nodes; those of the upper branches and ramuli simil: ar, but 
much shorter. Colour rosy, becoming darker and sometimes brownish in 
