COßALLINyE VER^] JAPONIC'^. 25 



together with the brunches in contact. Thus a spongy mass of 

 calcareous network are often found. 



The original description of the present species is at once 

 applicable to both the present and the next species. These two 

 species have several characters worthy enought to separate one 

 another. 



Found in tufts, usually epipliytic on other algae, in the sublittoral 

 region. Prov. of lîoshû : Misaki : Shimoda : Prov. of Iliuga. 



4. Corallina decussato-dichotoma, sp. nov. 



IM. lir. tig. 1-3 : PI. MI. fig. 3-4. 



Fronde fragile, decussato-dichotoma, ramis divaricatis intertextis, 

 articulis cylindraceis diametro 2 plo — -5 plo longioribusultimis cylind- 

 raceis acutis ; conceptaculis urnicf^rmibus, cornibus longioribus. 

 Corallina adhicrens Iviitz. Tab. Phyc. VIII. t. <S8. p.p. 



The articuli in the present plant are thicker than in the preced- 

 ing species, measuring 0.2-0. f) mm. in length and and 0.1-0.15 mm. 

 in diameter. Conceptacles are rarely found ; and if present, they are 

 provided with long, many articulated horns. The length of the 

 articuli is variable according to the habit of the plant : When it 

 grows epiphytically upon an alga, the articuli are comparatively long, 

 and the mass is somewhat loose. 



On rocks or epiphytic on other algae at low water mark. Misaki : 

 Prov. of lîoshfi : Prov. of Hiuga. 



5. Corallina arborescens, sp. nov. 



PI. in. Üg. 5 : PI. VII. fig. 5. 

 Fronde 1 cm. alta, erecta, regulariter dichotoma ; ramis patentibus 



