File:2012-12-31 Botryobasidium longisporum G. LANGER 299725.jpg

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Botryobasidium longisporum G. LANGER

Image location: Sky Trail, Point Reyes National Seashore, Marin Co., California, USA

On pine log next to unidentified polypore. The whitish collection dried gray.

I notice that the type and only collections are from Taiwan, but it keys right to it, and it fits the description very well. And is applying a European-based name really any different then applying one based on Asian material? In the end only sequence will sort them out, but it seems like a good morphological fit for now. B. danicum is described with longer spores, and B. sordidulum is described with spores with a pointy apex and the basidia should be shorter. I initially called this a Sistotrema, because the spores seems like a better fit to that genus, but the basidia really were not uriform, and the arachnoid fruiting body and size and shape of the hyphae are very typical of Botryobasidium. Spore

Used references: On line key from http://www.uni-tuebingen.de/uni/bbm/mycology/botrkey.htm, and description From Langer’s dissertation

Based on microscopic features: Lack of clamps, 6-8 spored basidia 21-22 X 8, large banana-shaped spores 8-12.4 X 4

dissecting scope view

For more information about this, see the observation page at Mushroom Observer.

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This image is Image Number 299725 at Mushroom Observer, a source for mycological images.

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This image was created by user Tom Bruns (pogon) at Mushroom Observer, a source for mycological images.
You can contact this user here.

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Camera location38° 04′ 13.8″ N, 122° 51′ 50.4″ W Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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This file, which was originally posted to MushroomObserver, was reviewed on 28 August 2013 by reviewer MPF, who confirmed that it was available there under the stated license on that date.

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current16:05, 17 August 2013Thumbnail for version as of 16:05, 17 August 20133,264 × 2,448 (7.2 MB)Josef Papi (talk | contribs){{Information |Description='''''Botryobasidium longisporum''''' G. LANGER Image location: Sky Trail, Point Reyes National Seashore, Marin Co., California, USA On pine log next to unidentified polypore. The whitish collection dried gray. I notice t...

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