Gymnosporangium atlanticum

On a living branch of Juniperus thurifera, in Sabinar de la Retuerta (Zaragoza).

This study corresponds to the telial stage of the species.

Teliospores of two types, both two-celled, with a prominent central septum.

The first and more common type corresponds to slightly fusiform teliospores, very thick-walled, with a distinct constriction at the septum.

The second and less common type corresponds to ellipsoidal teliospores, likewise very thick-walled and without a conspicuous constriction at the septum.

Basidiospores very difficult to obtain (only 3 obtained), ellipsoidal to oblong, thin-walled, with granular internal content.

The measurements provided here for the teliospores apply indiscriminately to both types.