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Puccinia allii sensu Gaumann

Description
Uredinia on leaves, subepidermal, erumpent, linear.

Urediniospores globose, subglobose, ellipsoidal or obovoid, subhyaline, 26‒32(‒36) × 22‒26(‒28) μm; wall 1.5‒2.5 μm thick, echinulate, 20‒29 spines per 10 μm2, with 6‒12 scattered germ pores.

Telia on leaves, subepidermal, ellipsoidal to linear, often confluent, black.

Teliospores cylindrical or clavate, apex rounded to truncate, approximately equal proportionsof one and two-celled spores (40‒60%), reddish brown, smooth walled; one-celled spores ovoid to obovoid or irregular 23‒45 × 12‒24 μm, wall 1.5‒3.0 μm thick at sides, 2.5‒4.5 μm thick at apex; two-celled spores cylindrical to obovoid 36‒53 × 18‒26 μm, upper cell similar in length or slightly shorter than lower cell, wall 1.5‒3.0 μm thick at sides, apex slightly thickened 2.5‒4.5 μm; remnants of pedicel persistent.

Hosts
Host family: Alliaceae
Host species: Allium cepa var. aggregatum
Allium fistulosm

Allium sativum

Distribution
QLD, TAS

Puccinia allii sensu lato on Allium sativum - BRIP 59724.
Highslide JS
Urediniospores of Puccinia allii sensu Gaumann on Allium cepa var. aggregatum - BRIP 61619.
Scale bar = 10 µm.
Highslide JS
Teliospores of Puccinia allii sensu Gaumann on Allium cepa var. aggregatum - BRIP 61619.
Scale bar = 10 µm.