- S 4 - 



Mcrtensiana P. et R. Illustr. Alg. p. 18, f. 33 ; Kuetz. Sp. Alg. p. 

 727. Schizymenia Mertensiana J. Ag. Sp. II, p. 174; Id. Epicr. 

 p. 121. 



Frond broadly expanded, 20-30 cm. or more in dimension, 

 leathery, irregularly lobed and undulato-plicated, sinuose with large 

 and obtuse lobes, umbilicately fixed at margin and sessile. Cysto- 

 carps dot-like, densely scattered and immersed in the substance of 

 the frond. Colour deep blood-red, becoming darker in older fronds. 

 Substance thick, leathery and tough, and the dried specimens long 

 resist the action of water in reimmersion ; plant does not adhere 

 to paper in drying. 



Hub. : Isl. Etrofu, Shizukawa (Prov. Rikuzen). 



PL. CXXIII, Fig 9-10. Fig. 9: frond of Turner ella Merten- 

 siana (P. et R.) Schmitz, J^. Fig. 10: portion of the cross-section 

 of frond showing neucleus and glandular cell, c., -*. 



Turnerella Schmitz. 



RHODOPHYLLIDACEJE. i 3 fr b 



j/ 7 % *,& - ^ ; JW M b & b 3 



^ -t v 



7 * 



