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Endoraecium phyllodiorum (Berk & Broome) Berndt

Description
Uredinia on both phyllode surfaces, subepidermal, erumpent, pulverulent or on bullate swellings, linear, round to irregular, yellowish brown

Urediniospores subglobose to oval, apex obtuse, yellowish brown, (28‒)30‒52 × 17‒26 μm; wall 2.5‒4.0 μm thick at sides, 5‒10 μm thick at apex, reticulate, with 3‒7 equatorial germ pores; pedicel absent or 1.5‒3.5 μm.

Telia formed from uredinia, erumpent, linear, reddish brown.

Teliospores cylindrical to oval, apex rounded, 1‒4-digitate, hyaline to subhyaline, 38‒58 × 17‒28 μm; wall 1‒2 μm thick at sides, 6‒17 μm thick at apex; pedicel persistent, up to 30 μm.

Hosts
Host family: Fabaceae
Host species: Acacia aulacocarpa

Distribution
NSW, QLD

Comments
McTaggart et al. (2015) proposed that E. phyllodiorum was restricted to A. aulacocarpa. Acacia aulacocarpa is the only species of Acacia known to host two species of Endoraecium, namely, E. phyllodiorum and E. violae-faustiae (Berndt 2011).


Highslide JS
Endoraecium phyllodiorum on Acacia aulacocarpa - BRIP 57589.
Highslide JS
Endoraecium phyllodiorum on Acacia aulacocarpa - BRIP 57589.
Scale bar = 1 cm.
Highslide JS
Urediniospores of Endoraecium phyllodiorum on Acacia aulacocarpa - BRIP 57590.
Scale bar = 10 µm.
Highslide JS
Teliospores of Endoraecium phyllodiorum on Acacia aulacocarpa - BRIP 57589.
Scale bar = 10 µm.