Ser. RHODOSPERME. Fam. Corallinacea. 
Piare CCLI. 
JANIA FASTIGIATA, Harv. 
Guy. Cuar. Frond subterete, setaceo-filiform, calcareous, articulated, di- 
chotomous; articulations cylindrical or compressed. Lructification : 
1, conceptacles urn-shaped, formed in the forks of the upper branches, 
furnished with an apical pore, and containing in the base of the cavity 
a tuft of erect, at length four-parted, spore-threads.—Jan1a (Lamu.), 
from Janira, one of the Nereides. 
Frons subteres, setaceo-filiformis, calcarea, articulata, dichotoma ; articulis cylin- 
draceis v. compressis. Fruct.: 1, conceptacula urneformia, transformatione 
articuli dichotomiarum superiorum infimi exorta, apice poro pertusa, in fundo 
loculi fila sporifera fasciculata erecta demum quadripartita foventia. 
Janta fastigiata; frond tall (2-3 inches high), fastigiate, dichotomous, 
with very acute axils; branches straight, erect; apices subinflated ; 
all the articulations cylindrical, the lowest once and a half as long as 
broad, the upper 2—3 times as long; the nodes constricted. 
J. fastigiata ; fronde elata (2-3 uncias alta) fastigiata dichotoma axillis acutis- 
simis, ramis strictis erectis, apicibus subinflatis, articulis omnibus cylindraceis, 
infimis diametro sesquilongioribus, superioribus diametro duplo v. subtriplo 
longioribus, geniculis constrictis. 
Janta fastigiata, Harv. Ner. Austr. p. 107.  Aresch. in J. Ag. Sp. Alg. v. 2. 
p. 556. Harv. Alg. Austr. Exsie. n. 448. 
Has. Port Fairy, rare, W. H. H. 
Geogr. Distr. Algoa Bay and Simon’s Bay, Cape of Good Hope. 
Descr. Root crustaceous, accompanied by curled filaments. #vonds densely 
tufted, 2-3 inches high, as thick as horsehair, regularly dichotomous several 
times, fastigiate ; the axils all acute and the filaments straight and erect. 
The apices are frequently a little distended, swollen, and sphacelate. The 
ceramidia are formed abundantly in most of the upper axils of fertile spe- 
cimens by the transmutation of the axile cell, and are exactly urn-shaped, 
with a projecting orifice. The spore-threads are slightly club-shaped, com- 
posed of four spores. The articulations are about twice as long as broad, 
nearly uniform throughout the frond. The colowr, when recent, is a deep 
purplish-red, becoming paler and less purple in drying. The substance is 
rigid and rather fragile, and the plant does not adhere to paper in drying. 
One of the largest and handsomest species of Jania, as that 
