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Fund: Amanita sp. (section Vaginatae) (29426)

Wann: 2009-11-22
Wächst auch dort: Swanton Rd., Santa Cruz Co., California, USA [Landkarte: hier klicken]
Wer: Christian (Christian Schwarz)
Es gibt ein Herbarium-Exemplar

Anmerkungen: Monterey pine forest.

Vorgeschlagene Namen:   Einen anderen Namen vorschlagen

Vorgeschlagener Name Nutzer Community-Meinung
  Christian Schwarz   2% (2)   Eye3
Mit nacktem Auge bestimmt: White-capped grisette with rusty-staining UV patches, slightly pinkish gills in largest specimen, but relatively small sulcations on cap.
Anhand von Büchern bestimmt
  amanitarita   82% (1)   Eyes3
Mit nacktem Auge bestimmt
Anhand von chemischen Beobachtungen: need to check for amyloid rxn.
  amanitarita   -76% (2)  
Mit nacktem Auge bestimmt: possibly subsection limbatulae; need to check spores for amyloid rxn.

Bitte logge dich ein, um eigene Namen vorzuschlagen und über die Vorschläge abzustimmen.

Eye3 = Dies meint der Finder Eyes3 = Mehrheitsmeinung

Kommentare: Kommentar abgeben

Erstellt: 2009-12-04 20:14:58 WET (+0000)
Von: Christian (Christian Schwarz)
Zusammenfassung: Spores non-amyloid.

Just made one quick slide in between studying for finals. No time to measure spores til next week.

99993

Erstellt: 2009-12-04 18:04:40 WET (+0000)
Von: Christian (Christian Schwarz)
Zusammenfassung: High School

Alas, solely my own interest. But wouldn’t it be nice if macrofungi were a bigger part of the curriculum?

99993

Erstellt: 2009-12-04 03:36:29 WET (+0000)
Von: debbie viess (amanitarita)
Zusammenfassung: here’s the pink gilled Santa Cruz lep from 2005…

40436

Erstellt: 2009-12-04 03:20:43 WET (+0000)
Von: Rod Tulloss (ret)
Zusammenfassung: All uses of Amanita alba are incorrect.

Christian! You used the Amanita Studies site in high school? Was this part of the curriculum or your own special interest?

Yes, there is something that is called that in the east, but it should be something like “A. vaginata var. alba in the sense of eastern N. American authors.” I’ve collected it several times. We also have a cream-colored member of the “ceciliae group” that is probably confused with the “var. alba” sometimes.

R.

40646

Erstellt: 2009-12-04 03:14:28 WET (+0000)
Von: debbie viess (amanitarita)
Zusammenfassung: isn’t there also an amanita here in North America that’s called alba…

and looks like a white grisette? I believe Ron Pastorino won a NAMA photo contest with an image of it…

as to limbate leps, funny you should mention it…the last pink-gilled amanita that I saw out here was a limbate lep from Santa Cruz, noticed and photographed by David Arora and illustrated and dried by me. I believe you already have the dessicata, Rod…

40436

Erstellt: 2009-12-04 02:35:01 WET (+0000)
Von: Christian (Christian Schwarz)
Zusammenfassung: I will certainly check the spores for amyloid reaction.

Standard procedure for Amanita, as I learned from your website back when I was in high school and had no access to Melzer’s.

99993

Erstellt: 2009-12-04 02:23:41 WET (+0000)
Von: Rod Tulloss (ret)
Zusammenfassung: Amanita alba….

Amanita alba is a junior synonym of Amanita ovoidea a large European species that is commonly eaten. It’s commonly placed in section Amidella, but Bas and I have both considered the possibility that it should be placed in section Lepidella…possibly in subsection Limbatulae.

When you get a chance to look at this collection. Even though you believe it falls in sect. Vaginatae, I think it would be good to check the spores for the amyloid reaction. I would be very interested in knowing what you find out when you investigate the exsiccata. I would also be interested in seeing them myself sometime.

Very best,

R

40646

Erstellt: 2009-12-04 02:07:15 WET (+0000)
Von: debbie viess (amanitarita)
Zusammenfassung: I think that Amanita alba is a pretty meaningless term. this is something way cooler.

Those pink gills tho, not in a velosa.

40436

Erstellt: 2009-12-04 02:06:36 WET (+0000)
Von: Christian (Christian Schwarz)
Zusammenfassung: RE: A. velosa

I’ve heard about that, but I feel fairly confident that these are not A. velosa due to 1) the rusty staining on the volval remnants, which I have never observed in A. velosa, as well as 2) the phenology (fall) and 3) the habitat (pines).
I will be doing a lot of investigation of my old collections starting in a week or so, and this is at the top of my list for examination – I’ll post more information then.

99993

Erstellt: 2009-12-04 01:38:31 WET (+0000)
Von: Rod Tulloss (ret)
Zusammenfassung: Many of the “Amanita alba” in SFSU

…are simply white specimens of A. velosa.

Are there spores on the herbarium specimen?

R.

40646

Erstellt am: 2009-12-03 23:15:57 WET (+0000)
Zuletzt geändert am: 2009-12-03 23:15:57 WET (+0000)
162-mal aufgerufen, zuletzt am: 2010-06-01 05:33:49 WET (+0000)
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Deutsche Fassung von Christian Asseburg.