BioImages: The Virtual Field-Guide (UK)

Unidentified Ascomycetes (Unidentified Spore Shooters)

Date 25 June 2007
OS grid ref SU83
Lat/Lon 51° 10' N, 0° 40' W
Location Vice County: Surrey, VC17, England
Voucher 25/06/2007[A]
(Please quote this in any queries about this record)
Stage or state Infection
Record Summary on olive green water-soaked patches on living Rhododendron leaves
Associated organism: on water-soaked patch on live leaf of Rhododendron ponticum
Identification Notes: Olive green water-soaked patches on this year's fresh, living, attached Rhododendron leaves. Some of these have sparse troops of minute, whitish, hairy, immature fruitbodies, which age grey. Some patches also include circular spots with slightly paler brown concentric zones, which may or may not be due to the same infection.

The immature fruitbodies are complex with several distinct types of cell:
1. terminal chaetae - greyish, thick-walled, pointed.
2. saddle-shaped cells - brownish, thin walled, usually with a pair of lateral appendages below.
3. basal cells - clavate, often with a lateral apical projection like the aerial on a mobile phone, 1- or 2-septate.
4. basal hyphae - filamentous, with coralloid branching.

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