
23-10-2007 18:35

Bon soir, on a dry branch of Banksia grandis in

22-10-2007 23:11
Perz PiotrHi, If I see Mollisia on Fomes or another hard-

22-10-2007 00:23
Perz PiotrHi, this is one of my Mollisias from Salix. -

21-10-2007 14:55
Perz PiotrHi, I have a pretty Mollisioid fungus wiht ambe

21-10-2007 11:45
Perz PiotrHi Can be, this is not a member of FUNGI kingdo
Nectriaceae on bark of Banksia
Hans-Otto Baral,
23-10-2007 18:35

on a dry branch of Banksia grandis in SW-Australia grows on the bark (peridermis) among the hairy felt a nice Nectriaceae which was at first sight taken for an Orbilia. It is characterized by rather large spores. The orange peridium turns deep pink in KOH and does not seem to have a perceptible ostiole. Any idea? I have not tried any key.
Sp. *29-31 x 9.5-10.3 µm, smooth, hyaline. Many spores still alive 13 months after collection.
There is also a polysporous Nitschkia (?broomeana) on this branch.
Zotto
Hans-Otto Baral,
23-10-2007 18:37
NC NC,
23-10-2007 19:04
Re:Nectriaceae on bark of Banksia
Why not send this information to Amy Rossman or Gary Samuels?
Dick
Dick
Christian Lechat,
23-10-2007 19:41

Re:Nectriaceae on bark of Banksia
Hi Zotto,
is there a stroma? which is the thickness of the perithecial wall? cupulate ascomata when dry?
could you make an image of vertical section of ostiolar region? :)
is there a stroma? which is the thickness of the perithecial wall? cupulate ascomata when dry?
could you make an image of vertical section of ostiolar region? :)
Hans-Otto Baral,
24-10-2007 16:50

Re:Nectriaceae on bark of Banksia
Hi Christian
The perithecia are actually rather strongly collapsing when dry. The spores have a wider range: *(26-)29-31(-35) x 9.5-10.3(-11.3) µm, and shrink considerably in KOH: (25-)28-33.5 x 8.2-9 µm. The The peridial wall is laterally upto 30 µm thick. I did not succeed, however, to hit the ostiolum, the perithecium is apparently brittle when dry. Also it is completely immersed among the dense hair felt on the bark.
The perithecia are actually rather strongly collapsing when dry. The spores have a wider range: *(26-)29-31(-35) x 9.5-10.3(-11.3) µm, and shrink considerably in KOH: (25-)28-33.5 x 8.2-9 µm. The The peridial wall is laterally upto 30 µm thick. I did not succeed, however, to hit the ostiolum, the perithecium is apparently brittle when dry. Also it is completely immersed among the dense hair felt on the bark.
Hans-Otto Baral,
24-10-2007 16:52
Christian Lechat,
24-10-2007 21:20

Re:Nectriaceae on bark of Banksia
Dear Zotto,
according to your data, I think it is a Cosmospora but without to see it, it is difficult to say something
You can send it to me, I will be glad to see it because I don't find any species like this in Cosmospora genus.
Regards
according to your data, I think it is a Cosmospora but without to see it, it is difficult to say something
You can send it to me, I will be glad to see it because I don't find any species like this in Cosmospora genus.
Regards