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patent, often assuming almost horizontal position. Apices of all 

 sorts of branches terminate in truncate or blunt end く. Margin 

 is flat and entire, excepting lower portion of the stem where 

 both margins often become rough by wearing*. The nuarib is 

 thick and conspicuous in full-grown parts, but is iainter in younger 

 or terminal portion of branches. 



Fruits of both kinds are produced from terminal pinnulse 

 of proliferated pinnae. Cys to carps oval or roundish, slightly 

 flattish, blunt or apiculated and consist of two chambers. Tetra- 

 sporangia densely collected in unaltered or slightly dilated pinnulae. 

 Anthendia unknown. Colour deep purplish-red. Substance rigid 

 and. cartilapinous, becoming almost horny after drying. The plant 

 does not adhere to paper in dryinp-. 



Hab. On rocks, stones and shells, , extending from high tide 

 mark to the depths, of 10-15 fathoms. 1 aiwan (Formosa), 

 ; Hiuga, Tosa, Shi ma, し ape Irako (Prov. Mikawa), Sap-ami, Awa, 

 Kadzusa, Hitachi. Fruits ― Summer. 



. Suhria japonica has been first described by Harvey in 1859, 

 from the material collected at Shimoda (Prov. Iazu) by C. Wright, 

 oince that time, no writer has made study of this plant till the 

 appearance of Schmitz's work on Gelzdtacece (Schm. I.e.), who 

 made a suggestion that Suhria ja わ onica should be ranked among 

 Porphylogosswn, And here I want to make a claim for referring 

 this plant to the genus り elidium with the following reason. 



That Svhria japonica should not be allied with Suhria vittata 

 (L.). J. Ag.， the typical species of the genus Suhria、 I am of the 



f i に- - ' ： 



same opinion, with Schmitz who first made the remark on this 

 point. Suhria vittata has, as it is well known, rather thin and 

 broadly linear-lanceolate, simple or irregularly branclied, miclribbecj 



