﻿Branches arising on all sides, very patent, often 3-4 being arranged 

 along one side. They are cylindrical, and attenuated above. They 

 grow up here and there into flat, lanceolate or oblong, midribbed 

 segments, becoming often very much slender and filiform above, 

 adhering to other bodies such as stones, gravels, shells, etc. By 

 this way, the plant subsequently takes decumbent habit. All parts, 

 save Jhe denudated stem, bases of branches and the upper 

 slenderer filiform portions, are closely loaded with niultifid 

 echinate warts which are peltate in insertion and are fixed to the 

 branch by a slender neck. They are set as if imbricated, and 

 the rachis may be seen through them, when not much crowded. 

 A section of thicker portion of branches shows 4-5 of them sur- 

 rounding angular axis or rachis. The echinate ramuli arise, at 

 first, forming a minute prominence below the apices of branches 

 which elongate in monopodial manner. Tetraspores are produced 

 in a small, roundish or elngato-oval, shortly stipitate sporophylls 

 which are formed by the prolongation of spinose ramelli of echinate 

 ramuli. Cystocarps are minute globular or oval, with or without 

 apical prominence and furnished with slightly swollen pedicels. 

 Colour is dull purplish-red. Substance is rigid and harsh to the 

 touch. In drying the plant does not adhere to paper. 



The external appearence of the plant resembles Tlmmuoclonium 

 hirsutum on account of having echinate ramuli ； but the plant is 

 widely different from the latter in many characters. Of the 

 plants prowing in this country, it presents some external resem- 

 blance to Acanthopeltis japonica Okam., which also belongs to the 

 family Gelidiacece. Acanthopeltis, however, is synpodial in its 

 mode of growth, while the present plant has monopodial growth. 

 And on this account, Yatabella shows no affinity with Acanfhopcltis, 

 not withstanding its external resemblances. 



