THE FUCACE.K OF JAPAN. 4o 



Tlie lulcriil bniuchlets on the luwcr iiululiiiltu I)iuiic1k'S 

 measure generally 20-30 em. in length when fully grown. Their 

 stems are delicate and liliform, about ^mm. wide, issuing sub- 

 ordinate ramulets in an alternately pinnate manner. The ramulets 

 are further divided in a similar manner, and their l^asal segments 

 may be transformed into vesicles and the upper segments into 

 receptacles. The vesicles are small, ovate, with a short stipe at 

 the base and a simple or bifurcated leaflet at the apex. No 

 ribs are found on the leaves, as the latter seem too narrow to 

 admit them. All parts of the frond except the old and basal 

 portions are provided with small but obvious cryptostomata. 



The mode of ramification, the disposition of the receptacles 

 and other essential characters of the present species, except the 

 points remarked above, are similar to the preceding two species. 

 What has been stated about them may in general be applied to 

 the species here described. 



Localities: Echigo Prov. (!); Ugo Prov. (!). 



TUR BIN AR A Labix. 

 Tuvhhiavia ornata J. Ac;. 



Spec. I. p. 266. — Okam.: Eiiumer. Alg. ot Jap. p. 141. 



I have not seen a specimen of this species. 

 Localities: Ishigaki-jima, Loochoo (Okamuea); Bonin Isl. 

 (Okamuka). 



Tuvbiiiaria trlalata Küiz. 



Tal). Pliyc. X. p. 24. Taf. 67. — Bartox: Syst. Struct. Ace. of Turhi- 

 naria p. 21-S._Dk Toni: Syll. Alg. III. p. 127. 



= Turhinaria vulgaris var. tricdata J. Ac: Spec. I. p. 268. 



= Tiirbinaria hetcroplujlla Kutz.: Tab. Phyc. X. Taf. 6*J. iig. 1. 



