A, 



Fig. 266. — A, Upper part of a fertile shoot of E. telemateia, Xi; B, lower part of a 



vegetative shoot, with young branches for the next season's growth, X i ; T, tubers; 



C, cross-section of an internode of the fertile shoot, X4; L, cortical lacunae; D, 



sporangiophores, X4; E, median section of a single sporangiophore, X6; sp, 



. sporangia. 



