S4 K, OKAMURA, LIST OF MARIN ALGM COLLECTED. \y \. xvnr. 



as I can suggest from the description given in references, it seems to me 

 that Hormosira ? articulata is not true Hormosira and a plant identical 

 with HormopJu/sa articulata Kg. than with Gystosira triquetra J. Ag. or 

 Cyst, prolifera J. Ag., as it appears from the characters having trifarionsly 

 winged branches which here and there swell up to winged air-vessels. 



I can not say any more about the relationship of Hormosira ? articulata 

 (Forsk.) Zanard. 



Studying the anatomical characters of Cystoseira articulata and Hor- 

 mosira Banhsii, I found some differences between them. In the former, 

 the epidermal layer is composed of a very few rows of cells, while in the 

 latter, of many layers consisting of vertically seriated rows of cells. Beneath 

 the layer, there comes in the former a parenchymatic tissue, internally 

 consisting of larger and larger cells having thin walls ; while in the latter, 

 there is a few layers of roundish smaller cells having thicker walls, and 

 beneath this a layer of a network composed of short filiform and substellate 

 cells. I know not whether the structure referred to is common for all the 

 species of Hormosira, yet I believe that this study shall throw some light 

 on the specific determination of the specimens doubted as Hormosira? 

 articulata. 



Cystophyllum muricatnm (Turn.) J. Ag. Var. binodis (Kuetz.) De Toni 

 Syll. Alg. Ill, p. 154. — Sirophysalis binodis Kuetz. Tab. Phyc. X, t. 

 59, f. 2. 



N. W. Cap. W. Austr. (K. Fujita). 

 Geogr. distr.: New Holland. 

 Cystophora retroflexa (Labill.) J. Ag. Sp. Alg. I, p. 242.— Blossevillea 

 candata Harv. in Kuetz. Tab. Phyc. X, t. 76. — Blossevillea campylo- 

 coma Kuetz. Tab. Phyc. X, t. 81, fig. 1. 



Port Hobarton (with receptacles ; K. Fujita.) 

 Geogr. distr.: New Holland and New Zealand. 

 Cystophora torulosa (K. Br.) J. Ag. Sp. Alg. I, p. 243 ; Harv. Phyc. 

 Austr. t. 123.— Fucus torulosus R. Br. in Turn. Hist. Fuci n. 157.— 

 Blossevillea torulosa Decne. in Kuetz. Tab. Phyc. X, t. 72, f. II. 

 Brown's River in Tasmania (with receptacles; T. Nishikawa.) 

 Geogr. distr.: Kent Isl.; W. New Holland. New Zealand. 

 Cystophora paniculata (Turn.) J. Ag. Sp. Alg. I, p. 248 ; Harv. Phyc. 

 Austr. t. 247. — Blossevillea paniculata Decne. in Kuetz". Tab. Phyc. X, 

 t. 75.— Fucus paniculatus Turn. Hist, Fuci. Ill, p. 100, t, 176. 

 Port. Hobarton and Bondi (with receptacles ; K. Fujita.) 

 Geogr. distr.: Kent Isl.; New Holland, New Zealand and Tasmania. 



