― 131 ― 



fhe identincation of our plant with Harvev s nnaoclaaia com- 

 が anata was done only by the comparative study of the structure ot 

 frond of Endocladict miiricata from America, knowing- neither the 

 cripinal specimens nor their photopraphs, nor asking anyone abroad 

 to take the trouble of coniparin ゾ our materials with the onpinal 

 specimen of that species. 



Assuming- that my identitication is correct, I p^ave the diagnosis 

 of the species above, as Harvey's is too short to determine with. 



In De Toms Syll. Alg. IV， p. 177, End. ？ rip'ciis (Mart.) Grun. 

 .( = Gclidiinn rigcns Mart.) is suspected to be inaentical with the pre- 

 sent plant. But as the latter is not used as edible sea-weeds among 

 ours, the former mii/ht not be same as the latter. 



PL. XXVII， Fig". 12-20. i:^!^-. 12: fronds of Endocladia com- 

 jdanata in nat. state and size. — Fig. 13 : rather regularly branching" 

 and well elongated frond (from Prov. iMikawa), a little larp*er than the 

 nat. size. 一 iMp^ 14 : portion of the same, y. ― rio^. 15-16: portions 

 ot ordinary dwarf and irreo-ularly branchim ァ fronds (from Prov. Idzu) ； 

 な, place where branches have united to each other ； ― Fig-. 17 : 

 portion of ordinary dwarf frond (from Amakusa Isl.), や. 一 Fie. 18 : 

 two root-like processes (on both sides), — Fig. 19 : i-^rowino" apex 

 of frond, -^j^. ― Fig. 20: cross-section of frond ^ -^. 



PL. XXVIII, Fig. 13-17. Fig. 13 14 ： longitudinal section of 

 frond, 1- Q. — np-. 15 : two pieces of branches coming into cohesion at 

 a ； one of the branches bearinp- sori, (from Prov. Mikawa)' Y. —— Fio-. 

 16 : frond bearingr tetrasporic sori (from Ainakasu, Isl.) ； r、 root, ^丄'、 一 



Pig. 17 : tetraspore, や. 



