123 



Substance lubricous and the plant inperfectly adheres to paper in 

 drying. 



Hab. : On rocks or stones near high tide. Chishima (Kurile 

 Islands) ; Hakodate ; Otaru ; Prov. Rikuchu, Prov. Rikuzen, Prov. 

 Iwaki ; Mito and Kawajiri (Prov. Hitachi) ; Cape Inuboe (Prov. 

 Shimosa). Sporangia of both kinds : March-May (Cape Inuboe). 



This plant is largely used as an edible seaweed in this country. 



PL. LXXXV, fig. 8-15. Fig. 8: fronds of Chordaria abictina 

 Rupr. in nat. state and size. Fig. 9: cross-section of a ramulus, ^. 

 Fig. 10 : ramuli branched, J. Fig. 11 : portion of the cross- 

 section of a ramulus, 3 -. Fig. 12 : longitudinal section of the 

 growing apex of frond, G ^-. Fig. 13: portion of the longitudinal 

 section of sterile frond, -y Q . Fig. 14 : gametangia, e ^. Fig. 15 : 

 zoosporangia, ^ . 



Chordaria C. Agardh, 1817. 



i -2 & m- 



CHORDARIEAE, CHORDARIACEAE. 



tS - ^ i- ? = f 7 m JR. 5H1 >- ^ 4? fTc/fi t !> . m i'u - 



^ * y * * a it = * 7 it =. m t r m M * 9 $. , m m - >A & 

 - m * r^ 7 & * b * * b 7&x- %dt&~m~ $."% * 

 - ? w.vm^ffiWT&Z" m & M -- -> ? m it & * 



* y " T- m (BP * T** > - i- J ii) - $0 ft & ' T 

 ? iS ^. fig ^ ffl> ^ / * ii ^ ^J ^ *S ft & / ^ / 



