C. Ferdinandsen and Ö. Winge : The genus Entorrhiza C. Weber. 



11 



voideis, saepius inaequilateralibus, ad insertionem stipitis appla- 

 natis, 22—26// long. ^ 12— 16 (i lat., plasmate denso, vacuolato 



farctis. 



In radicibus tumef actis Carl- 

 as limosae L. in palude Lyngby 

 Mose dicta Selandiae septen- 

 trionalis, mense Septembri. (Leg. 

 F. Kølpin Ravn). 



E. Rostrup (1894, p. 36) men- 

 tions this discovery and identifies 

 the specimens collected with E. cy- 

 pericola (Magn.) De Toni parasi- 

 ting in the roots of Cyperus fla- 

 vescens L. Yet he adds : »The form 

 found on the said Carex differs, 

 however, as to the size and struc- 

 ture of the spores somewhat from 



} . , „ ,, Fig. 7. E. cancicola sp. n. bpores ^p. 



the description given by P. Mag- 

 nus, it therefore possibly being a distinct species, which must be ve- 

 rified by direct comparison and culture experiments. The spores are 

 somewhat larger than those of Magnus, being namely 20—25 

 ^ 12—15 fjt«. 



In fact, the morphological difference between the two spe- 

 cies is rather great, as well regarding the shape of the spore 

 as the sculpture of the membrane, which has been evident to us by 

 examining specimens of E. cypericola from the classic locality. 

 We found the size of the spores agreeing with the statement of 



P. Magnus (17—20 ^ 11— IM, 

 wherefrom it thus becomes evi- 

 dent that the spore inE. cypericola 

 is relatively considerably broader 

 than in E. caricicola, the propor- 

 tions between length and breadth 

 being respectively 1,4 : 1 and 1,7 : 1 

 (f lg> 7 — 8). Further the membrane 

 6 in E. cypericola is thicker and 

 more coarsely sculptured than in 

 our species. We can state that 

 -2: E. cypericola by examining E. cypericola we of- 

 (Magn.) De Toni; 3-4: E.Ascher- ten have found the spores pro- 



(After P. Magnus). ments, and that we also in this 



