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26-04-2026 21:08

William Slosse William Slosse

Several species of Ramularia occur on Rumex that I

22-04-2026 20:54

Enrique Rubio Enrique Rubio

Hi to everybody.This Pyrenopeziza grew in moist le

25-04-2026 11:34

Louis DENY

Bonjour forumdans la clé de Zotto, L. pudicellum

24-04-2026 03:16

David Chapados David Chapados

Found while looking at something else from wood in

22-04-2026 01:06

Richard VALERI Richard VALERI

Bonjour à tous.Je vous présente cette Nectria s.

22-04-2026 20:17

Marian Jagers Marian Jagers

Is anyone familiar with the Hyphomycetes genus Pse

23-04-2026 06:46

François Freléchoux François Freléchoux

Bonjour, Voici la description d'un minuscule asco

21-04-2026 22:14

Margot en Geert Vullings

This cup fungus was found on April 10, 2026, on lo

22-04-2026 19:12

Louis DENY

Bonjour forum.Trouvé à Belfort, est de la France

21-04-2026 21:00

Sylvie Le Goff

Bonjour à tousJe sollicite votre aide pour cet as

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On Metrosideros fallen old leaves
Elsa Sousa, 23-01-2018 23:48
Good evening,
Is it possible any help with this fungus?

Apothecia erumpent from the leaf opening star like. Inner surface white like Propolis. I see some black ascomatas (cleistothecium?) but I'm not sure they are related, since there is no asci on them, but I can upload images later.

Spores filiformes (61.6) 67.2 - 79.8 (80.7) × (3.3) 3.31 - 3.9 (4.2) µm 

Me = 71.1 × 3.7 µm

Asci ± 72 x 11.5 paraphyses filiformes

Thank you very much
Regards
Elsa
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Hans-Otto Baral, 24-01-2018 09:37
Hans-Otto Baral
Re : On Metrosideros fallen old leaves
It could be a Marthamyces, a relative of Propolis, but I never saw a species of that genus. A pity that your photos are unsharp. Is there any reaction with Lugol?
Elsa Sousa, 24-01-2018 21:03
Re : On Metrosideros fallen old leaves
Thanks Zotto, for answering I always admire your generosity :)


I think you're right. The tree is Metrosideros excelsa, it's a NZ originary tree and it's used as ornamental tree on litoral cities here.

Unfortunately my scope magnification is very poor, measuring can have an error specially on width. The fungus is non-amyloid. Spores are 0-1 septate but the septa is not in the middle. Remeasuring more asci it turns to 74.5 × 8.3 µm. The stalk is so short that I don't see it in many asci.

I found this description:

https://virtualmycota.landcareresearch.co.nz/webforms/vM_Species_Details.aspx?pk=35621

and these keys

https://www.researchgate.net/publication/309295913_Marthamyces_coronadoae_sp_Nov_in_a_Fagus_grandifolia_subsp_mexicana_forest_from_Hidalgo_State_Mexico



What do you think?
Hans-Otto Baral, 24-01-2018 23:12
Hans-Otto Baral
Re : On Metrosideros fallen old leaves
Thanks for the article, I did not know. Where did you collect your fungus? I sit a planted tree there?

Indeed I believe it is the right genus and perhaps this M. emarginatus.


Elsa Sousa, 24-01-2018 23:32
Re : On Metrosideros fallen old leaves
I collected the leaves in a small garden with only those trees, in Vila-do-Conde a city on the coast.