A REVISED LIST OF CORALLINE. 33 



Coralliiut sessilis is a peculiar plant. It was first described 

 by the present writer in " Cor. ver. Japon." ]i. o2. Lately I 

 also found it among a collection of Gorallina from Australia, sent 

 by Dr. Okamura for determination.^^ The position and the form 

 of the conceptacles show the characters of Corallina ; and at the 

 same time are referrible in some respects to both the Serraiicardia 

 and the Alatocladia. Cf. " Cor. ver. Japon." 1. c. Judging from 

 the description given by Harvey in Ner. Austr. 1. c, Amphiroa 

 variabilis Harv., which was described from a sterile specimen, 

 is probably related to this species. 



Areschoug doubted the generic position of Cor. eapensis 

 Leach., but he provisionally included it under Arthrocardia 

 Aresch. He did not know the propagating organ of the species. 

 There are two fertile specimens of "Arthrocardia capensis Aresch." 

 in Suringar's Herbarium, collected at Cape Agulhas, South 

 Africa. They differ slightly in minor points but evidently accord 

 with the description given by Areschoug in J. Ag.'s Spec. Alg. 

 II. p. 552, and one of them especially with /. ß of Areschoug. 

 The conceptacles have a peculiar character resembling those of 

 Gorallina sessilis in general. As there has nothing been reported 

 concerning the matter, it will not be superfluous to give some 

 points in detail. 



The articuli in the middle and upper portions are cuneate, 

 more or less compressed above. Each upper corner of an articulus 

 is mostly extended to a short spinous process. Very often we 

 find one more process at the external side of the former situated 

 very close and parallel. Both are never jointed, and are alike 

 one to another. They elongate further, keeping their relative 



1) Bot. Mag. Tokyo. Vol. XVIII. p. 



92. 



