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07-01-2026 10:24

Danny Newman Danny Newman

Pezicula sp. on indet. hardwood Appalachian Highl

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Tatraea sp. on indet. hardwood The Swag, Great Sm

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Marc Detollenaere Marc Detollenaere

Dear Forum,On a barkless Populus I found some smal

10-11-2021 17:33

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Add-on topic http://www.ascofrance.com/forum/7059

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cf. Chaetospermum on XylariaCosby Campground, Grea

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Diplodia on malus
Robin Isaksson, 19-03-2022 19:51
Robin IsakssonAnyone know this one?
Found on fallen twig.

Spores 22-25x10-11.5

Best Regards
  • message #72145
  • message #72145
  • message #72145
Angel Pintos, 20-03-2022 18:01
Angel Pintos
Re : Diplodia on malus
Hello Robin,
I suggest you look at Dothiorella spp.
Best wishes




Dothiorella was reduced to synonymy under Diplodia by Crous
& Palm (1999), who used a broad morphological concept for
Diplodia. Phillips et al. (2005) re-examined the type of Dothiorella
pyrenophora Sacc. (K 54912) and found that it differed from
Diplodia by having conidia that are brown and 1-septate early in
their development, while they are still attached to the conidiogenous
cells. . In Diplodia conidial darkening and septation takes place after
discharge from the conidiomata. Crous et al. (2006) re-examined
the types of both Diplodia and Dothiorella and confirmed these
morphological differences.

A.J.L. Phillips et al.
The Botryosphaeriaceae: genera and species known from culture

Studies in Mycology 76: 51–167
Robin Isaksson, 22-03-2022 20:04
Robin Isaksson
Re : Diplodia on malus
Dear Angel,

Thank you for the information.
I Will have a look.

Best Regards

Robin