


RSPR ERB (RSS Ke] wim) 
THE BOTANICAL MAGAZINE. 
[Wol. VI. | January 10, 1892, 
SS 




Ecklonia radicosa. 
Nom. Jap. Antoku-me, アント ee 
Laminariaceze. 
(Plate 1.) 
By Kintaro Okamura. 
Laminaria radicosa, Kjeliman, Jap. Lamin., in Vega-Exped. Vitensk. Iakttag., vol. iv., p. 263, tab. ro, fig. 1. 
Root fibrous, repeatedly subdi-tri-polychotomous, densely eo and more or less connate, forming a 
depressed subglobose mass. Stipe very short, solid, compressed, of subequal thickness, presenting in the cross 
section a row of minute muciferous lacunae in the submarginal portion, when young mostly without appendages, 
when old mostly emitting from the margin and sometimes from the surface numerous short root-like processes, 
which are simple or branched. Frond rather thick, coriaceous, coarsely and longitudinally rugose, with a few 
muciferous lacune in the cortical portion. Young frond lanceolate or oblong-lanceolate, entire and ovate or | 

cuneate at the base, undulate-plicate at the margin. Mature frond ovate in outline, pinnately lobed; the lobes 開 

me 
Ecklonia radicosa. 
