79 



Tichocarpus crinitus (Gmel.) Rupr. 



Nom. Jap. : Kareki-gusa. 



PL. CXX1 CXXIII, Fig. 1-8. 



Tichocarpus crinitus (Gmel.) Rupr. Tange d. Ochot. Meeres 

 p. 320, t. 17; J. Ag. Epicr. p. 284; Id. Florid. Morphol. t. XVIII, 

 f. 8; Schmitz in Engl. u. Prantl Pflanzenfam. Algae, p. 381 ; De 

 Toni Syll. Alg. IV, p. 385. Prionitis? crinita J. Ag. Sp. Alg. II, 

 p. 191. Fiicus crinitus (F. crinatus') Gmel. Fuci p. 160 t. iS, f. 

 2. Fucus crinitus Gmel., Turn. Hist. Fuci t. 123. Gelidium 

 crinitum Kuetz. Sp. Alg. p. 766 ; Id. Tab. Phyc. XVIII, t. 45. 



Plants more or less variable in habits and size, attaining the 

 height of 15-30 cm. Fronds densely ccespitose rising from callous 

 disc, linear, compressed, almost flat in some specimens, somewhat 

 thickened in others in the median line and then ancipitous, and 

 often in fully grown larger fronds the most parts of the lower 

 portion of the frond become almost cylindrical appearing like the 

 stem. Fronds forked more or less immediately adjoining the root 

 and afterwards repeatedly divided at mostly short, but uncertain, 

 intervals, in an irregularly dichotomous manner, with patent seg- 

 ments besides which, scattered branches, between horizontal and 

 patent, of most uncertain length, some simple, others divided, arise 

 here and there from the side of the larger ones. Branches are 

 in some slender and linear, (1-1.5 mm broad) in others more broad, 

 and often especially so towards the forks (even 5-6 mm broad 

 in dried specimens). The apices of all the branches and branchlets 

 are as a rule slender and pointed, sometimes obtuse and truncated, 

 more so in older fronds ; the margin quite entire, naked below, 

 but towards the summits fringed on both sides (also proliferated 



