W. WEST AND G. S. WEST : ALGA-FLORA OF YORKSHIRE. 33 



112. Mougeotia depressa (Hass.) Wittr. 



[Syn. Mesocarpus depressus Hass.]. 

 N.W. — Mickle and Cronkley Fells. River Ure. 

 N.E. — Scarborough Mere. 



113. Mougeotia gracillima (Hass.) Wittr. 



[Syn. Staurospeimum gradllimtim (Hass.) DeBary]. 

 Mid W.— Rombald's Moor. Blubberhouses (W. B. Turner). 

 Ingleborough. Penyghent. Ribblehead. Cowgill Wold Moss, 

 Widdale Fell. 



N.W. — Mickle and Cronkley Fells. Cotterdale. 

 N.E.^Strensall. Seamer. 



T14. Mougeotia viridis (Kiitz.) Wittr. 



[Syn. Staurospermum viride Kiitz. J. 

 S.W.— Near Rotherham. Cullingworth ! (T. Hebden). 

 Mid W. — Bog, two miles south of Clapham. Austwick. 

 Horsforth (J. Abbott). 



S.E. — Loftsome Bridge, near Wressle. 



1 1 5. Mougeotia quadrangulata Hass. [Syn. M. quad- 

 rata (Hass.) Wittr. ; Staurospermum quadratum 

 (Hass.) De Bary]. 



N.E. — Strensall. Pilmoor, near Thirsk. 



116. Mougeotia capucina (Bory) Ag. 

 N.E. — Pilmoor, near Thirsk, very fine (vi., 98). 



Sub-Family Zygneme/E. 

 Genus DEBARYA Wittr. 

 iiy.'Debarya calospora (Palla) Nob. [Syn. Mougeo- 

 tiopsis calospora Palla in Ber. der Deutsch. Botan. 

 Gesellsch., Jahrg. 12, 1894, heft 8, pp. 228-236, 

 t. xviii.]. 

 N.E. — Pilmoor, near Thirsk. 



We showed this interesting plant to be a true species of 

 Debarya in Ann. of Bot., March, 1898, vol. 12, p. 49; it cer- 

 tainly possesses pyrenoids, which, as in D. Icevis (Kiitz.) West 

 and G. S. West, are somewhat variable in size and disposition. 



