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20-06-2025 08:33

Ascomycete on a herbaceous stem.
Josep Torres Josep Torres

Hello.Small, blackish, mucronated surface grains s

11-06-2025 16:26

Literature request
Jason Karakehian Jason Karakehian

Hi everyone, I am looking for the following protol

18-06-2025 19:24

Literature request
Bernard Declercq Bernard Declercq

Good evening,On Oenanthe aquatica we collected  a

17-06-2025 14:23

¿Hyaloscypha?
Josep Torres Josep Torres

Hello.A probable Hyaloscypha from last June 1st, s

18-06-2025 16:24

Anamorphe sur Lycopodium annotinum
Andgelo Mombert Andgelo Mombert

Bonjour,Un minuscule stade imparfait, qui pousse s

13-06-2025 16:34

Strossmayeria-like on Fagus
Andgelo Mombert Andgelo Mombert

Bonjour,Un petit discomycète qui me résiste. Il

17-06-2025 12:10

Scutellinia para ID 1303
Castillo Joseba Castillo Joseba

Del pasado dia 4  en bosque de hayas, en tierraA

12-03-2025 17:54

Scutellinia hyperborea?
Karl Soler Kinnerbäck

Hi all!Do you agree with Scutellinia hyperborea? P

17-06-2025 12:02

Scutellinia para ID 2259
Castillo Joseba Castillo Joseba

Del pasado sabado, en bosque de hayas y avellanos,

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On Yucca filamentosa - conidia like Robillarda, but aseptate
Ethan Crenson, 08-05-2025 18:32
Hello all,

I was looking at leaves of Yucca from a NYC coastal park recently and encountered conidiospores that looked interesting to me.  They are associated with pycnidia which form on the leaves, but it is likely that the pycnidia are a separate anamorphic taxon with brown conidia.

Hyaline conidiospores with a lot of oil content. Usually five or more hair like projections extending from one end of the conidia.  35-50 x 10.8-12.1µm.  They bear a resemblance to Robillarda species, but that genus has 1-septate conidia, I think.  Pestaloziella spp. are also similar, but have hair-like projections that branch, while my collection has individual hair-like projections. 

Can anyone recommend a genus?  Thanks in advance.

Ethan
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Angel Pintos, 08-05-2025 18:57
Angel Pintos
Re : On Yucca filamentosa - conidia like Robillarda, but aseptate
Hello Ethan,
"It may be Kellermania yuccifolia, found on leaves of Yucca filamentosa.Best wishes.
Angel
Ethan Crenson, 08-05-2025 19:31
Re : On Yucca filamentosa - conidia like Robillarda, but aseptate
Hello Angel.  Thank you for your quick reply!  I was also considering Kellermania, but I was under the impression that the conidia had a single appendage.
Martin Bemmann, 08-05-2025 19:44
Martin Bemmann
Re : On Yucca filamentosa - conidia like Robillarda, but aseptate
Here are the figures from Nag Raj 1993 (attached), single celled conidia with multiple appendages...

Regards

Martin
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Angel Pintos, 08-05-2025 20:04
Angel Pintos
Re : On Yucca filamentosa - conidia like Robillarda, but aseptate
Thank you, Martin for the image.
In Nag Raj's description, it is mentioned that the conidium bears minute marginal frills, as it seems to be visible in your image 2.
Best wishes.Angel
Ethan Crenson, 08-05-2025 20:06
Re : On Yucca filamentosa - conidia like Robillarda, but aseptate
Kellermania yuccifolia it is!  Thank you both!

I see that Index Fungorum has Alpakesa yuccifolia as the current name. Has that name gained acceptance?