195 



Stolon thick and robust, raked and cylindrical. Aerial shoots 

 high, cylindrical and thick below, branched, with branches naked 

 at base. Ramenta distichous, subnaviculoid, 2-3 times long as the 

 breadth of rachis. 



Hab. : Kishyu. 



PI. CC, fig. 3 : portion of frond of Caul, cnpressoides C. Ag. 

 var. lycopodioidcs f. clegans Web.v. Bos. in nat. size. 



Derbesia Lamonurouxii (J. Ag.) Solier. 



Nortl. Jap. : Tsuyuno-ito. 

 PL. CC, Fig. 4-8. 



Derbesia Lauiourouxii (J. Ag.) Solier In Ann. Sc. nat., 1848, 

 p. 162, t. 9; Hauck Meeresalg. p. 476; De Toni Syll. Alg. I. p. 

 424. Bryopsis Balbisiana Lam. Essai p. 66, t. 7, f. 2 ; Kg. Sp. p. 

 490. Bi-yop. Balbisiana. var. intcrrupta Kg. Tab. Phyc. VI, t. 74, 

 f. 2. Bryop. dalrnatica (Bryop. adriatica] Kg. Tab. Phy. VI, p. 

 26, t. 74, f. i. 



Fronds filamentous, capillary-form, densely tufted forming a 

 globular mass, 5-6 cm. high. Filaments 170615;-! thick (in herbari- 

 al form), rooting at lower portions, naked and almost simple or 

 irregularly put forth minute branches. Zoosporangia globular, ca, 

 350 p in diameter, subsessile (or with a short and delicate pedicel), 

 single or many formed near together or subsecund. 



Hab. : Kishyu. 



PI. CC, fig. 4-8. Fig. 4 : tuft of Derbesia Lamourouxii (J. Ag.) 

 Sol., -j-. Fig. 5 : branch bearing sporangia, --J-. Fig. 6 : rhizoids 

 emitted from upper segments, *f. Fig 8 : sporangia, **. 



