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21-03-2026 22:59

Petr Soucek

Good evening, I would appreciate some advice on th

21-03-2026 15:13

Lepista Zacarias

Hello everyone, Does any one know of any literatu

20-03-2026 12:53

Stefan Blaser

Hello everybody, In the field, from distance, my

20-10-2017 09:23

Garcia Susana

Este otro crecía en el mismo trocito de madera qu

20-03-2026 16:16

Edvin Johannesen Edvin Johannesen

These 0.5 mm diam. acervuli were breaking through

19-03-2026 19:34

Filip Fuljer Filip Fuljer

Hello everyone,a few days ago I collected this str

19-03-2026 18:25

William Slosse William Slosse

Good evening everyone, On 18/03/26 I found a few

17-03-2026 10:09

François Freléchoux François Freléchoux

Bonjour, Voici la description rapide d'un petit d

19-03-2026 15:58

Stefan Blaser

Hello everybody, I hope for some hints... Macro:

19-03-2026 17:50

Enrique Rubio Enrique Rubio

Hi to everybodyThese thiny, blackish pseudothecia

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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.