Observation 10744: Spathularia flavida Pers.

When: 2008-08-19

Collection location: Jemez Mountains, Los Alamos, New Mexico, USA [Click for map]

Who: Douglas Smith (douglas)

Specimen available

Found under spruce, ponderosa pine, d. fir, aspen. Found in a number of places through the day in these loose groupings poking out of the needle duff. They were mostly light tan to yellow, the stipes seemed to start white and darken to light brown, while the hymenium didn’t change. The shapes were fairly random, from puffy random to thin planar, with many to no wrinkles.

The name comes from “Mushrooms Demystified” Arora, and from notes in “Mushrooms of Colorado” V. S. Evenson. There is also N. vitellina, but I saw this in Colorado, and it is more bright yellow with a whiter stipe (more pure bight yellow and white, instead of dull yellow-tan on off-white light tan here).

9/29/2008 – Putting these under the scope.

I as able to get around to a quick look under the scope for these. I look at hymenal tissue from one that was flat with a clear stipe, and from one that was puffy, irregular, thick, with a clear stipe or shape. I was worried that I might have mixed two different species here, even though they were intermixed on the ground. No, they are all the same species here, and kinda clear which one.

The micro-shot here is of an asci and spores at 1000x in Meltzer’s. There is no reaction to the Meltzer’s, and the spores are long and needle like. The asci in the shot here has 8 spores within it, and spores are about half the length of the asci, where the spores are bunched together (think of a flower bouquet…).

With the long needle-like spores here, it is fairly clearly S. flavida.

Species Lists


Proposed Names

92% (2)
Used references: Mushrooms Demystified, Arora; Mushroom Expert (.com)
Based on microscopic features: Spores are needle-like, very long and very thin.

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= Observer’s choice
= Current consensus


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Created: 2008-09-10 06:31:15 AEST (+1000)
Last modified: 2008-09-10 06:31:15 AEST (+1000)
Viewed: 209 times, last viewed: 2019-01-23 09:03:06 AEDT (+1100)