This species was first described by Harvey under the name of Gigartina 

 lancijolia from materials collected by C. Wright at Hakodate. The diag- 

 nosis given runs as follows : — 



u Stipite tereti-compresso, ramoso : ramis basi compressis subcanalicula- 

 tis, apice in folia lanceolata plana ciliata utriusque spinulis compressa 

 desinentibus." 



I failed to recognize in this short diagnosis the plant which I named 

 Grateloupia Jwrrida under the impression that it was new and distinct. 

 Recently however I have found from De Toni's Phyc. Jap. Xov. p. 204 

 that Gigartina lancifolia Harv. has Japanese names Fimo-nori, Fibo- 

 nori and Kiyo-no-Jimo-nori. Since my Grateloupia Jwrrida, to which I 

 gave Mino-ji-nori as the Japanese name, is also known in Japan by the 

 very names mentioned by De Toni, I have been led to reconsider the 

 status of that species, and have found that the above cited diagnosis of 

 Harvey, short as it is, agrees well with the characters of my Grateloupia 

 Jwrrida. I have, therefore, come to the conclusion that the two species 

 are identical. 



On the other hand, the fact that this plant is not a Gigartina, but 

 should be referred to the genus Grateloupia, notwithstanding its resemb- 

 lance to the former in the structure of the frond, seems to be clear from 

 the structure of its cystocarp as described by me in detail (loc. cit.). 

 Grateloupia lancifolia should then be the proper name of the species. 



Gelidium repens Sp. nov. Fig. 5-8. 



Diagnosis : Fronds filiform, more or less compressed, creeping and 

 forming densely matted patches of a variable extension, divaricately branch- 

 ing on all sides, with subulate or often sublanceolate and almost horizontally 

 parted ramuli. Both kinds of fruits formed in ramuli. Cystocarps 

 minute, globular, formed either in or near the apex of ramuli, blunt or 

 pointed at the apex. Tetraspores collected in a flat and oblongly expand- 

 ed ramulus. 



Hab. On rocks near high tide. Sagami, Boshu, Kadzusa. 



Description : Fronds firmly adhering to the substratum by short root- 

 like processes. At the beginning, the plant forms a circular expansion 

 and has almost all branches adhered to the substratum ; but as the patch 

 grows larger and larger, and as, in consequence, branches become more and 



