oci., mis.] k. YENDO.—ERYTHROPHYLLUM GMELINI GEUN.). ■>:,{ 



throphyUum delesserioides J. Ag. J. Agardh 1 described the 

 structure and fructification of the plant (under Rhodvmenia. 

 Gmelini). His statement, however, is very doubtful to mu as 

 will be further discussed below. Setchell and Gardner men- 

 tion a specimen from Agattu Island, Alaska, under Kallvmenia 

 Gmelini, in their joint work Algae of Northwestern America, p. 

 307. They state that the plant has a certain resemblance to 

 Kallymenia ornata J. Ag., but is smaller and diners somewhat 

 in structure of the cross section of the blade. 



The specimen upon which Grunow's statement is based are 

 still preserved in excellent condition in the Botanical Museum of 

 Berlin. After a close examination of the specimens in Berlin and 

 studying further on the material collected by nu-self in Japan, 

 I now propose to transfer Kallymenia Gmelini Grun. to the 

 genus Ery throphyUum. As I was not fortunate enough to see 

 Gmelin's original, I can not give any decisive view on Grunow's 

 identification. 



Judging from the statement given by Setchell and Gardner 

 in the paper alluded to above, I am strongly in doubt if their 

 plant should belong to a quite different species from the plant 

 under the subject. 



In a young stage, the plant resembles in its general appear- 

 ance to a similar stage of various species of Kallymenia, such 

 as K. reniformis, K. Harverana, K. schizophylla, &c, in having 

 simple, ovate or reniform frond, abruptly narrowed into a short 

 stipe. The blade expands as it developes, splits into several 

 segments, and finally become laciniated till to the base. The 

 root is disc-shaped, pretty larger than in proportion to the 

 frond, and has elevated surface. The margin of blade is at first 

 entire, but when the laciniated lobes begin to expand and split 

 further, both outer and inner margin of a segment are minutely 

 but sharply spinulated. When a frond has further developed, 

 the basal part of a laciniated lobe is eroded away by degrees, 

 adding more length to the earh^-formed stipe. 



In a well-grown specimen, the stem is 3—4 inches in length, 



]) Anal. Alg., Cont. V, p. 59. 



