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afterwards becoming flat and straight. In some specimen, a 

 " Kurztrieb " has been found to show an abnormity as illustrated 

 in Fig. 3 a, and Fig. 5. Pericentral cells are 9—10 in the main 

 branches, throughly e corticated, with articulations "half as long as 

 broad. Tetraspores are formed in the more linear leaves, i.e. 

 in the " Kurztriebe," which contain 3 or 4 of them in a single 

 longitudinal row in lower articulations, and are externally covered 

 by two or sometimes three cells. Procarps are developed on 

 either side but mostly on the outer side of the leaves slighty 

 beneath the apex. Cystocarps are oval with a, rather wide ostiole, 

 provided with a more or less elongated turbinate pedicel, which has 

 moslly one or sometimes tvvt> wart-like or somewhat short spur-like 

 prominences on both sides near the base of the cystocarp. When 

 two of such prominences are present, one is smaller than the 

 other ; but, one or both may be sometimes entirely absent. Oi the 

 two prominences, the one is transformed from the remnant of the 

 apical portion of the original leaf, and the other is of secondary 

 formation. 



Hab. On fronds of various kinds of calcareous algae and 

 others. Hiuga, Kishu, Sagami, Boshu, Noto. Fruit ~ summer. 



. This pretty plant has been first described by Mr. Holmes 

 from materials collected at Enoshima by Mr. S. Okubo. After 

 carefully studying the fructified specimens, I have been led to 

 refer this species to Hevposi や honid, and not to Polyzonia as 

 Mr. Holmes has done. 



At first p-lance, the plant appears to have a habit remarkably- 

 resembling that 01 Polyzonia. But, the characters of the plant 

 being- as just described, it should, in spite of external resemblance 

 arising from the obscurity of dorso-ventral arrangement, be se- 

 parated from Polyzonia ； for in Polyzonia there is no regularity 



