BioImages: The Virtual Field-Guide (UK)

Pucciniastrum epilobii G.H. Otth (Willowherb Rust)

Date 27 June 2007
OS grid ref SU56
Lat/Lon 51° 20' N, 1° 10' W
Location Vice County: Berks, VC22, England
Voucher 27/06/2007[B]
(Please quote this in any queries about this record)
Stage or state Uredia (II)
Record Summary on willow herb
Associated organism: on underside live leaf of Epilobium
Identification Notes: Uredia punctiform with apical pore, hypophyllous, in patches, eventually covering much of leaf underside; occasionally in lines along base of inflorescence branches. Leaf upper surface with faded yellowish, unbounded spots above.

Uredospores: echinulate, clavate to amygdaliform or ellipsoid, 18-26/13-14µm, with yellow granular contents, hyaline in some uredia.

Telia: pale brown, subepidermal in brown spots.

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