119 



proliferated from basal portions ot fasciculately arising leaves uh 

 illustrated in PL. LXXXIV, Fig. 7, a and b. They consist of 4 cells 

 carried on "Tragzelle" which is connected with an axial cell. 

 Cystocarps are ovoid or almost spherical, tipped or blunt at apex, 

 0.6 mm as long as broad and furnished with a short pedicel, somewhat 

 longer or shorter. 



Hab. : Oast up ashore. East and west coasts of Kabafuto (Sa- 

 ghalin) ; Urakawa (Prov. Hidaka) ; Mashike (Prov. Teshiwo) ; Cape 

 Povorochini (Russian coast ?). Cystocarps : April June (Urakawa). 



This plants is known to the people inhabiting in the neighbor- 

 hood of the Cape Povorochini 'as edible seaweeds tinder the name of 

 1 Chikaputsuro ' or ' Setakemaa'. 



PL. LXXXIV. Fig. 1 ; strile frond of Delesseria. Midiienaorfii 

 Rupr. from Cape Povorochini, \. Fig. 2 : another sterile portion of 2- 

 years-old frond from Kabafuto (Saghalin,) i. Fig. 3 ' fructified 2- 

 years-oid frond from Urakawa, i. Fig. 4- : one of leaf-clusters of fig. 

 5, . I 7 ig- 5 : leaves proliferated in a rossette-like cluster from the 

 older membrane, a a, |. Fig. 6 : two leaflets proliferated on both 

 surfaces of the midrib of the older membrane, . Fig. 7 : two cysto- 

 carps and very young proliferations a and b, bearing procarps within, 

 ~. Fig. 8 : a of fig. 7 viewed from the surface to show procarps 

 through the cortical layer, -^ . Fig. 9 : two procarps ; c, axial cell ; / 

 " Tragzelle ",~*~. Fig. 10 : cystocarp, ~. 



PL. LXXXV, fig. 1-7. Fig. 1 : cross-section of the portion 

 marked a in fig. 6 of PL. LXXXIV, 1 1 2 . Fig. 2 : portion of the 

 same ; m, cells of the median layer, 9 /. Fig. 3 : cross section of a 

 younger leaf, ~. Fig. 4 : portion of fig. 3, ij 5 . Fig. 5 : apical 

 portion of a very young leaf in surface view, - 2 ^. Fig. 6 : cross- 



