﻿PLATE XXV. 



Amansia glomerata Ag. 



RHODOMELACE/E. 

 Nom, Jap. ： Kiku-hiwodoshi. 



Amansia glomerata Ag. Syst. p. 247 ； J\ Ag, Symb. p. 25 ； Id. Sp. 

 Alg.， Vol. II， p. nil ； Kiitz. Sp. Alg. p. 883 ； Fkbg. Rhodom. p. 416， 

 Taf. I， fig. 19-21 ； Taf. VI, fig. 14-29. 一 Amansia fasciculata Kiitz. Tab. 

 Phyc. Vol. XV, Taf. 4， a— d — Delesseria rhodantha Harv, Alg. Telfair. 

 110. p in Hook. Journ. of Bot. p. 1 キ 1 j 、 tab, CXXVL — Amansia rhodantha 

 /. Ag. Symb. 26. — Ex sice, Harv. friend I. IsL Alg. no. p. 



Root a circular disc. Fronds form densely glomerous tufts, 

 3-7 cm. high in our specimens. At the beginning, frond Is lan- 

 ceolate and thin membranaceous, with the growing apex rolled 

 toward the ventral surface, pinnulated alonp- margin, and pro- 

 liferates segments similar to tlie primary frond from the midrib 

 of the same surface. Proliferated segments are fasciculated after 

 the manner of a rosette, and these segments, after having at- 

 tained their full length, give rise to other proliferations in their 

 turn. By tliis way, the simple primary frond becomes decom- 

 pound. The midrib is insignificant in a lamina which has no 

 prolileration, but becomes very thick and prominent, when pro- 

 liferations are produced from certain points of the midrib, by 

 pradual cortication over both of its surfaces, alonp" the line ex- 

 tending from the the points to the base of the lamina. In this 

 manner, the lower portion of the primary frond becomes thicker 



