196 



Hab. : On stones in sandy beach below low tide in calm 

 waters. Ono and Furumi (Prov. Owari, Narita), Gamagori (Prov. 

 Mikawa, Narita). 



The plant described above very much resembles the illustra- 

 tions given in Turn. Fuci Tab. 198 and Kuetz. Tab. Phyc. XVIII, 

 Tab. 33 f. d-e and seems to be taken as f. typica i. e.f. gcnuinum 

 Huck I.e. p. 193. 



Among our plants there are smaller forms which at a glance 

 very much resemble Acrocarpns lubricus Kuetz. Tab. Phyc. XVIII, 

 Taf. 32, f. <J-k. It may be described as follows : 



Frond dwarf 1-1.5 cm - h'gn, erect, standing from creeping 

 stem, simple or here and there with short ramuli, with some of 

 branches a little elongated and furnished with patent and sharpish 

 ramuli arranged in pinnate or subsecund manner at short intervals. 

 Tetrasporangia in lanceolate apex of ramuli. 



Hab.: Probably same as/", genumum. Miyazaki, near Gama- 

 gori Prov. Mikawa (Nagura). 



On making comparison with a small specimen 1 ' of Naples from 

 Herb. H.W. Buck, which has Kuetzing's handwriting of Sphaerococ- 

 ats lubricns Kuetz., our plant somewhat differs from it by being 

 rather weak and more flattened and much ramellose. But as the 

 present species much varies in habit I think it better to consider 

 this form as identical with f. lubricnm of the Mediterranean. 



PI. CXLVI, Fig. 1 : two fronds of Gclidium crinale (Turn.) 

 J. Ag. /. lubricum Hauck, ~. Fig. 2 : frond of f. gcnuinum Huck. 

 \. Fig. 3 : two branches of the same detached, \. Fig. 4 : 



i) This specimen is kept in my herbarium through the kindness of 

 Mr. Reinbold. 



