Well to confuse matters more this species looks alot more like a clypeolaria too me than like a magnispora! I see colors like this on clypeolaria… Also the white stipe ornamentation would help istinguish it from magnispora (Though the latter species doesn’t always have strong yellow colors!)
John—Arora does not list it because it’s unpronouncable (which it is) but because the name was published in 2001…long after Arora finished his book!
Vellinga, E.C., 2001. Studies in Lepiota III. Some species from California, U.S.A. Mycotaxon 80: 285-296.
Douglas — thanks for the pointer. Arora doesn’t list L. spheniscispora (because it’s unpronouncable?); the first enrty in google is E.C. Vellinga’s paper which Michael cites. The cover photo of that article is a close match to what I have here.
According to Else Vellinga:
“Yellow-brown scaly cap, and a ragged stipe characterize this species
It resembles Lepiota magnispora (which was known as L. clypeolaria in North America), and
differs mainly in colours: yellow-brown in L. spheniscispora, more orange or rusty brown in L.
magnispora. The latter is even more ragged on the stipe and has a very contrasting central patch
on the cap. Lepiota magnispora grows more north in California, is common along the coast from
Mendocino upwards. There are no good microscopical characters to distinguish the two species.
And when the fruitbodies are old it might be hard to tell them apart.”
From the shaggy stipe, and color of the cap, I would say this is Lepiota spheniscispora (and the fact that it is in the bay area, in the north there is L. magnispora, which looks the same to me, I’m not sure how to tell the difference between the two).
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