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18-10-2018 23:23

Johan Myhrer

Have been struggeling with these for a while, foun

18-10-2018 23:55

Yaroslav Mieshkov Yaroslav Mieshkov

Hello,Does anyone has the following paper? Bertau

08-10-2018 14:51

Edvin Johannesen Edvin Johannesen

I came across these dense mats of apothecia seated

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Bernard Declercq Bernard Declercq

Hello, Can anyone supply me following paper? Pa

17-10-2018 07:10

Ethan Crenson

In Northeastern North America.  On the banks of a

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hannie wijers

Hello, I'd like some help if possibleIn Beilen I

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Valencia Lopez Francisco Javier

Hola a todos/asPeziza recolectada en el sur de Esp

03-10-2018 22:13

François Bartholomeeusen

Good evening forum members,Can this be Hyalorbilia

14-10-2018 19:25

Marja Pennanen

Hi, on a Populus leaf among other things, I found

15-10-2018 10:52

Castillo Joseba Castillo Joseba

Del pasado sabado en bosque de avellanos,   pare

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Densely Grouped Conidiophores on Phragmites
Peter Thompson, 21-11-2017 11:59
Hello Everyone,

I have found a hyphomycete which grows densely clustered along the small ridges of a dead leaf of Phragmites australis.

The conidiophores are mid-brownish, knobbly, with scars along them and measuring between 68 - 130 x 5 um. They are smooth, regularly septate and thick walled.

The conidia are pale 1- 3-septate, with the largest being 16 - 18.5 x 7.25 - 8 um. Their bases are flattened, where previously attached to the conidiophores.

The closest species which I can find in the literature is Dendryphiella infuscans, but this species does not seem to grow in dense tufts, like mine.

I have attached a photo of the fruit bodies and also a microphoto, showing more detail of their structure. 

I wonder if anyone has any ideas as to what they might be?

Thank You,
With Best Wishes,
Peter.
  • message #51255
  • message #51255
Chris Yeates, 21-11-2017 17:15
Chris Yeates
Re : Densely Grouped Conidiophores on Phragmites
It looks very like a species of Cladosporium, a very common and rather complex genus. See:
https://www.researchgate.net/publication/284233129_Common_but_different_The_expanding_realm_of_Cladosporium
Peter Thompson, 21-11-2017 17:46
Re : Densely Grouped Conidiophores on Phragmites
Hello Chris,

Thanks. I will have a look through this paper.

I did consider the genus Cladosporium, but was not sure that they would grow so densely grouped as my sample.

With Best Wishes,
Peter.
 

Herrera Emerson, 21-11-2017 18:01
Herrera Emerson
Re : Densely Grouped Conidiophores on Phragmites
Buen día, por el momento pense en Cladosporium pero esta produce esporas de una celula. Son irregulares pero no es Cladosporium.
Chris Yeates, 21-11-2017 18:16
Chris Yeates
Re : Densely Grouped Conidiophores on Phragmites
Does "esta produce esporas de una celula" mean "produces spores with a single cell"? Because Cladosporium conidia can have several septa - compare with:
http://www.discoverlife.org/20/q?search=Cladosporium+macrocarpum
Chris