128 



through all grades of rose-red to yellowish and white. The substance 

 is thin-membranaceous, gelatinous and tender, and the plant in drying 

 strongly adheres to paper. 



Development of the Cystocarp. A mother cell from which 

 procarpial branch and auxiliary cells arise is formed as a branch 

 from a roundish infra-cortical cell which is situated beneath the 

 epidermal cells. Around the mother cell there are formed some 

 eight auxiliary cells from it, which are roundish or oblong at the 

 beginning, but afterward assume elongated and lobed or branched 

 tuber-like shape ; so also the mother cell. Cells of procarpial branch 

 are probably formed subsequently from the mother cell of the auxiliary 

 cells as its lateral branch and consist of 4 cells, three of which, except- 

 ing the carpogonium, take the shape like the auxiliary cells, only 

 differing from them in their somewhat smaller size. Carpogonium 

 carries very much elongated and twisted trichogyne. After fer- 

 tilisation has taken place auxiliary cells and procarpial cells fuse to 

 each other, thus forming a very large branched roundish or oblong 

 mass. Now the sterile filaments which previously lie in the neigh- 

 bourhood of auxiliary cells come in contact with them or with fused 

 cell, either by forming pit-connection or directly fusing themselves 

 with the fused cell. From the fused cell spore-forming filaments are 

 branched out in all directions and thus cystocarp characteristic 

 to the genus is completed. 



Hab. : On stones, corals, shells, algae etc. near low water 

 mark. Oshima (Pror. Idzu ? Mosely), Amakusa-jima (Prov.Higo)i 

 Kashiwa-jima. (Prov. Tosa) 



PL. LXXXVI. Fig. 1 : frond of Callymenia cribrosa Harv. 

 bearing cystocarps, in nat. size. Fig. 2 : basal portion of the frond, 

 a, attaching to the branches of Hypnca, b, f. 



PL. LXXXVII. Fig. 1 : portion of a younger frond in nat. size. 



