﻿PLATE VIII, 



Hemineura Schmitziana de Toni et Okam. 



DELESSERIACE/E. 

 Nom. Jap. Habutaye-nori. 



Hemineura Schmitziana de Toni et Okam., Neue Meeresalg. aus 

 Jap., p. 76， Taf. XVI, fig. 6-12 (Ber. Deuts. Bot. Gesellsch., 1894, Bd. 

 XII.); de Toni Phyc. Jap. Nov., p. 29 ； Id., Syll. Alg.， Vol. IV, p. 

 720 ； Okam. Alg. Jap. Exsic, Fasc. I， No. 18. 



Pro7id solitary, adhering to substratum by roots which are 

 either disk-shaped or branched monosiphonous filaments and 

 produced from margin and under-surface, membranaceous, bi- 

 tripinnate, faintly midribbed, whithout lateral veins, 10-15 cm. 

 high, tapering below to a short compressed stipe in an adult 

 frond. Segments lanceolate, broadly acute or roundish at apices, 

 0.6-1,5 cm. in breadth, usually narrowed at the base, patent, 

 with rounded axils. Margin irregularly fimbriated with larger or 

 smaller leaflets which either grow into sporophylls or remain as 

 sterile. Very rarely leaflets proliferate from the midrib. Tetva- 

 spores forminp" a dense sorus on each side of the midrib of 

 sporophylls. Cystocarps subhemispherical and slightly oblique, 

 sitting* on the midrib of sporophylls, with a small terminal pore 

 pointing upwards and towards the apex of sporophylls. Colour 

 rosy-red. Substance thin membranaceous, and the plant adheres 

 to paper in drying. 



Hab. On rocks perhaps at low tide. Is さ， Eno-Shima 

 and M isaki (Sagami), Boshu, Kadzusa, Iwaki. Tetraspores and 

 Cystocarps ― Summar. 



