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30-04-2024 16:22

François Bartholomeeusen

Dear forum members,On April 25 2024, I found one f

03-05-2024 18:04

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde on Rubus fr

02-05-2024 20:04

éric ROMERO éric ROMERO

Bonjour, Une question à propos de la réaction a

01-05-2024 23:22

Ethan Crenson

Hi all, Found late last week in a New York City p

29-04-2024 21:32

Robin Isaksson Robin Isaksson

Hi! Found in Sweden. Ascomata with haris, se

01-05-2024 12:54

F. JAVIER BALDA JAUREGUI

Hello, everyone.An idea for this pyreno, I found u

30-04-2024 16:59

Sylvie Le Goff

Bonjour. Petite pézize récoltée au sol en bordu

30-04-2024 19:43

Gernot Friebes

Hi!We observed this hyphomycete growing between le

30-04-2024 16:08

maurice pelissier maurice pelissier

BonjourTrouvé dans un torrent de montagne au Chir

29-04-2024 21:51

Mathias Hass Mathias Hass

Hi everyone, Found on attached branches of top pa

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Lasiobolus macrotrichus Rea
Joop van der Lee, 11-03-2013 19:02
Joop van der LeeFound on deer dung, colour of fruitbody bright orange with white hairs.
Hairs: pointed or rounded at the top, thick walls, no septa, 101.71-156.46x7.33-7.98 um. Sometimes the hairs had a constriction near the top.
Parafyses: Long straight and pointed at the top 
Asci: 183.74x13.08 um containing 8 spores.
Spores: Hyaline 16.93-19.20x7.65-8.35 um thick walls.


These specimen were always accompanied by an ascobolus that appeared next to the mentioned specimen above.
Fruitbody: white, rounded with dark brown ripe spores. 
Asci: 146.6x25.98 um containing 8 spores.    
Spores: 22.47-25.93x10.69-12.22 um


Ascobolus is determined as Ascobolus Sacchariferus.

Only fruitbodies that are small differ from the disk in the measurement of asci and spores.

Spores in the disk are smaller in size than those of the younger rounded ones.

Measuring 15-17x7.8-9 um. 


The last picture is an update of the ascobolus in a young rounded state.  


Lasiobolus intermedius also has a pure white form
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René Dougoud, 11-03-2013 20:24
Re : Cheilymenia or lasiobolus?
Cher Collègue,

Il y a deux espèces de deux genres distincts, Lasiobolus sp, avec les poils non septés et Ascobolus sp. avec les ascospores violettes et striées. Il est très fréquent de trouver ces deux genres sur le même substrat et les ascospores de l'une sur l'autre. Ce serait trop facile sans cela !

René
Peter Welt, 11-03-2013 21:23
Peter Welt
Re : Cheilymenia or lasiobolus?
Lasiobolus intermedius Bezerra & Kimbr.


Peter
Joop van der Lee, 12-03-2013 12:40
Joop van der Lee
Re : Cheilymenia or lasiobolus?

Thx Peter


Gr. Joop 

Joop van der Lee, 14-03-2013 19:29
Joop van der Lee
Re : Cheilymenia or lasiobolus?
Allo René,

Je m' excuse pour la tard réaction à votre explication de mon question. 
Je n' ai toujour pas une identification de l' ascobolus, les spores ressemblent beaucoup les spores d' ascobolus furfuraceus mais en moment je ne suis pas sure.

Joop
  
Joop van der Lee, 18-03-2013 17:06
Joop van der Lee
Re : Cheilymenia or lasiobolus?
Are you sure it is Lasiobolus Intermedius Peter?
I do have some new measurements and they do'nt directly match to L. Intermedius or L. Ciliatus.
The length and width of the hairs 545-680x40.14-43.70 um, these hairs do have sharp and rounded tops, thickness of the walls was 5.59-5.76 um.
The length and width of the asci 207x11.91 um.
Spores 17.55-20.61x7.64-8.66 um with thick walls especially when young.

Also these specimen do have a white form with the same characteristics. 
Peter Welt, 19-03-2013 09:25
Peter Welt
Re : Cheilymenia or lasiobolus?
Hi Joop,

After your spores way, I was sure. If every day you're
experiencing a different spores size, it can also be something else.

Here's a part of my key.


3a Sporenlänger als 20 µm 7


7 Sporen nicht subfusiform 8


8a Sporen kleiner 9


9b Asci zylindrisch, Sporen uniseriat


10a Sporen 20-23 x 8,5-9,5, Harre 500-900 (1000) µm lang = Lasiobolus macrotrichus Rea


probably now Lasiobolus macrotrichus Rea

Peter

Joop van der Lee, 19-03-2013 11:57
Joop van der Lee
Re : Cheilymenia or lasiobolus?
Is there a possibility that I can download your key Peter?



Joop