(100) 
Rielle 
— 
_ 
Be ll 

Contributions to the Phycology of Japan. 
from the margin and surface of the frond except younger portions. They are mostly short and lanceo- 
late; some of them at the margin become either longer and linear branching once or twice dichoto- 
mously or pinnate by lateral proliferations. Cystocarps abundant, mostly collected in the smaller proli- 
ferations. Tetraspores dispersed over the surface of the frond and in the proliferations. Color dark pur- 
plish red, changing to brownish or pale is Substance cartilaginous. The plant tee not adhere to 
paper in drying except the soft younger portions free from proliferations. 
Hab. On rocks, between tide marks Kagoshima, [otomi, Enoshima, Noto. Fruits in August. 
The near relative of the present species is Grateloupia filicina. 
Pi. V. Fig. I. G. horrida. (nat. size)—Fig. II. Cross section of frond with a cystocarp (x 230). 
Grateloupia (Gigartina) affinis, Harv. Root a small disc. Frond tufted, many times pretty regularly 
dichotomous, 3-6 cm. high, compressed, its lower portion tapering into a compressed or subcylindrical 
stem. Segments linear, 2 cm. or more long in the lower portion of the frond, gradually decreasing above, 0.7-3 | 
mm. in breadth, somewhat thickened at the margin, mostly expanded at the forks. Lacinew in many cases 
cuneate or sublate-linear. Apex blunt or emarginate. Axils generally rounded. Proliferations constrict- 
ed at the base, often arising from the margin or injured end of segments, very rarely from the surface. 
Cystocarps densely collected in the uppermost one or two segments. Nucleus simple, immersed beneath 

