― 168 ― 



densely ansinj^ irom the margin and surface of the frond except younger 

 portions. They are mostly short and lanceolate ； some of them at the 

 margin become either longer and linear branching once or twice dicho- 

 tomously or pinnate by lateral proliferations. Cystocarps abundant, 

 mostly collected in the smaller proliferations. Tetraspores dispersed over 

 the surface of the frond ana in the proliferations. Color dark purplish 

 red, changing to brownish or pale yellowish. Substance cartilaginou, 

 and lubricous. The plant does not adhere to paper in drying except 

 the soft younger portions free from prolilerations." ― Okam. Contr. Phyc. 

 Jap. p. 1. 



Fronds attain the length of 15-30 cm. some growing even to 60 cm. 

 When young they are entirely free from proliferations. 



Hab. : On rocks between tide-marks. Provs. Satsuma, Chikuzen,. 

 Totomi, Salami, Idzumo, Noto, Yechi-go ； Hakodate. 



The near ally of the present species is G rat dm お a filicina, 

 PL. XXXIV， Fig. 9-14. Fig. 9: fructified frond of Grateloupia 

 lew ci folia (Harv.) Okam., \. ― Fig. 10 : portion of the cross-section of frond 

 bearing tetrasporangia. ― Fig. 11: procarp in siti" ― Fig. 12-13 : 

 procarp ； a, b， c, cells of the carpo^onial branch ； an and 5,5, sterile cel^- 

 branches, ―^. ― Fig. 14 : cystocarp, ―^, 



Grateloupia C. Ag. 1822. 



• . むかでの り 屬. 



GRATELOUPIACEAE. むかでの {) 科. 



體ハ 扁 壓又ハ 扁平 ュシ テ葉狀 ，叉 狀又ハ 羽狀- 分岐 シ， 叉 

 往々 枝 ヲ副出 シ， 稀 ュ 表面 ョ リ 分岐 ス， 而シテ 明- 絲 組織 ョ リ 

 成リ， 多肉 ナ, 粘滑檨 軟骨 質ョ リ成 髓部ハ 細 ク シ テ 綱狀. 

 - 錯綜 セ ノレ 絲 ヨリ 成ソ， 又 別 二 細 キ根 檨絲ノ 之-付 隨ス ノレ ァ- 



