July, Mi;.] g. YEN DO:— NOTES ON ALGAE NEW. TO JAPAN. VII. 203 



Wraugelia purpurifera J. Ag. 



Spec. Alg. II, p. 707.— Id. : Epicris, p. 623.— De Toni : Syll. 

 Alg. IV, p. 134. 

 ? = CaHitliamnion purpuriferum Harv. : in Gen. South Afr. Plants. 



Our .specimens exactly accord with the type in the Agardh- 

 ian Herbarium and the description given by J. Agardh in 

 Spec. Alg., I.e. In his later work Epicris, I.e., the describer 

 expressed a doubt about the generic position of the species as 

 the fructification of the plant was unknown to him. 



Our specimens are all tetrasporic. The frond measures 

 about 3-5 em in height with a percurrent axial stem from 

 which the lateral branches are alternately pinnate^ issued. 

 The lower lateral branches exceed in length from the tipper 

 oiies so that the general outline of a shoot is somewhat cuprcs- 

 soid. The axial stem is " spongiose " at the basal portion 

 with small branchlets all around, and the filiform cells pro- 

 duced downwards from their insertions practically corticate 

 this portion of the stem. The corticafion, however, is not 

 so compact and tissue-like as in the other species of the 

 I'enicillatac. The axial cells at the basal portion arc about 

 100 // in diameter and 2-i times as long. They grow gcntlv 

 slenderer and longer upwards, and in middle part of frond 

 measure GO-SO (i in diameter and 8-10 times as long. The 

 vcrticillate branchlets arc found at each node of the lateral 

 branches and of the axial stem except in the corticated 

 basal portion. They ramify dichotomously twice or three 

 times with narrow sini; the cells, cylindrical, about 00 fi in 

 diameter and 3 times as long, gently narrower in the upper 

 ones. The terminal cell oi each branchlet is very short and 

 acute, ainl the next one is generally ;i little larger than it hut 

 ni.-i i kedly shor er than the res! , 



From single basement cell al the insertion of each verticil' 

 bite branchlet there starts a clustei ol \r5 filiform, di-or trichoto 

 mously branching ramulets. A filament consists <>f I'-.'!, long, 

 cylindrical, curved cells, with round apex. Tetrasporangium 



