When: 2010-02-04

Collection location: Baltimore Canyon, Larkspur, California, USA [Click for map]

Who: H. North (wrongenvelope)

No specimen available

Found on dead wood during a winter walk.

Species Lists


Proposed Names

31% (2)
Recognized by sight
61% (2)
Recognized by sight: I think I can see some tiny hairs on the cap surface in the lower left

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= Observer’s choice
= Current consensus


Add Comment
Stereum ostrea
By: Andreas (AK_CCM)
2011-06-17 16:06:07 AEST (+1000)

Perhaps it could be Stereum ostrea. The cinnamon- to tobaco colored fruitbodies of this species grow up in several meters long rows with up to 10 cm protruding pilei and usually tapering or like a stipe formed bases. The surface is fine rusty tomentose, distinctly zoned and in bands glabrous. At the base the color changes to dark olive-brown. The smooth hymenium is more cream pale ochre like St. subtomentosum – do you have an additional photo of the underside? The fruitbodies are showing a whitish margin and brownish colors at the base. The safest characteristic to identify that species are the small and slender Pseudoacanthohyphidia in the hymenium. They could be coloured with Melzer’s reagent. Regards, Andreas