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31-10-2024 22:25

Small 'lights' on Betula leaves, Denmark
Karen Poulsen

Hello, On half weathered Betula leaf, I noticed t

31-10-2024 21:42

Dusty pink conidiomata on old pine needles, Denmark
Karen Poulsen

Hello, On last year's pine needles on the ground

31-10-2024 04:07

Amicodisca sp. ?
Francois Guay Francois Guay

Last week, I found what appears to be an Amicodisc

28-10-2024 17:51

Hymenoscyphus s.s. on various herbaceous stems
B Shelbourne B Shelbourne

• Macro and habitat suggest Hymenoscyphus s.l.,

24-10-2024 23:07

Otidea
Patrice TANCHAUD

Bonsoir, récolte réalisée sous hêtres et chê

28-10-2024 23:30

Small Scutellinia on wood
Marc Detollenaere Marc Detollenaere

Dear Forum,I found some small fruit bodies of abou

24-10-2024 14:39

Xylariales sp
Jean-Luc Ranger

Bonjour à tous,Découvert sur un terrain calcaire

23-10-2024 17:27

Hyalopeziza on Rhamnus
Enrique Rubio Enrique Rubio

Hi againThese tiny apothecia (100-200 µm) were gr

25-10-2024 02:15

Possible Allophylaria nervicola on leaves of Magnolia
B Shelbourne B Shelbourne

• Very few macro characters and I initially thou

26-10-2024 16:19

?Calycellina on Picea cone
Juuso Äikäs

Yesterday I found some small white Helotiales grow

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Xylaria globosa, a " red" Xylaria..?
Esquivel-Rios Eduardo, 14-10-2012 21:34


 A Xylaria globosa (Spreng. ex Fr.) Mont. is a only Xylaria species with red-orange colorations in the ascostroma. This specimen found in the Cordillera Central, 500 mts. altitude, has these characteristics. The orange-red coloration develops only in thin sterile cilindrical stromata arising between fertile globose black stromata , they have few peritecias. The ascospores are 18-24 x 6-8 microns.
In http://mushroaming.com/Amazing_Amazon  is referred as X. glabrosa, but i cant found any references to this specie.

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FELIPE SAN MARTÍN, 17-10-2012 21:38
FELIPE SAN MARTÃN
Re : Xylaria globosa, a " red" Xylaria..?
¿Xylaria schweinitzii Berk. & M.A. Curtis?
Esquivel-Rios Eduardo, 18-10-2012 03:20
Re : Xylaria globosa, a " red" Xylaria..?
Gracias. La  X. schweinitzii reportada en Panama es totalmente esferica y no se mencionan la coloracion roja de estas estructuras, ver: http://www.flickr.com/photos/myxomop/5416371742/
FELIPE SAN MARTÍN, 18-10-2012 17:18
FELIPE SAN MARTÃN
Re : Xylaria globosa, a " red" Xylaria..?
En mi xperiencia, las especies del complejo Xylaria polymorfa (X. polymorpha, X. curta, X. complanata, X. Schweinitzii, X. scruposa, etc), presentag gutulas de colores vivos (rojos o amarillos) solo en el estado de anamorfo, cuando maduran ya no exudan gotas coloreadas. Por cierto, no se trata de un pigmento estromatal, si así fuera éste persistiría en el ectostroma de los ejemplares maduros, se trata de exudados acuosos coloreados mientras anamorfo.
Saludo.
Thomas Læssøe, 22-10-2012 17:20
Re : Xylaria globosa, a " red" Xylaria..?
hello

In my experience X. polymorpha s.st. and  X. obovata (syn schweinitzii) never produce red droplets when emerging but my concept of X. globosa does (= anisopleura). But this complex still needs a lot of attention using other methods :-)
The red drop producing taxon is extremely common in Ecuador and presumably over most of the Neotropics

cheers

Thomas
FELIPE SAN MARTÍN, 23-10-2012 03:30
FELIPE SAN MARTÃN
Re : Xylaria globosa, a " red" Xylaria..?
I fully agree with Thomas.