Paralepistaceae

© Daniel Winkler

Danny’s DNA Discoveries – Paralepistaceae of the PNW
by Danny Miller

Introduction

abundant common uncommon rare - colour codes match my Pictorial Key and are my opinions and probably reflect my bias of living in W WA. Rare species may be locally common in certain places at certain times.

Summary of Interesting Results

tbd

Paralepista - click to expand
Orange, strongly funnel-shaped clitocyboids with close/crowded gills and almost round spores that are off-white and finely warty (like Lepista, the name given to some Clitocybe species with similarly coloured warty spores). Bonomyces is stockier and smells farinaceous and has smooth, elliptical spores. Infundibulicybe gibba is pinkish tan but not as orange, and has smooth, white spores.
Species mentioned: Paralepista flaccida, gilva, inversa

Paralepista gilva EU - Paralepista flaccida EU and P. inversa EU (synonyms) are the lookalike species that have been reported from here. Paralepista gilva has not been reported from here, but so far all half-dozen or more local sequences match well with about a dozen EU sequences labeled P. gilva, not the dozen sequences labeled P. flaccida. Paralepista gilva may have drop-like blotches on the cap when young (see the second photo) but not all our collections show them.
If you think you actually find P. flaccida/inversa in the PNW, browner in colour and without splotches when young, save it. If you find a collection with the "peppery/spicy" odor which has been reported in some of our collections, save that too.

Paralepista gilva © Daniel Winkler and Yi-Min Wang

Ripartites - click to expand
Clitocyboids with a pale brown spore print and roundish, warty spores. The mushrooms have white and pink colours, and the caps and stems are fibrillose. Note especially that this is not white spored!
Species mentioned: Ripartites tricholoma.

Ripartites 'tricholoma PNW01' - pinkish orange, with a fibrillose cap and stem. The cap margin is said to be quite bearded, something not noted on this collection (although the cap fibrils are noticeable along the margin). This, the most famous species in the genus, is a complex of a half dozen genetic species in the EU, so I don't know if our species is the real one or not, but this one could very well be, it seems to match many (but not all) EU sequences.
Ripartites 'tricholoma PNW04' - similar. This collection did not show an appreciably fibrillose cap, but the margin was subtly bearded. It matches another of the possible identities of R. tricholoma in the EU, but I would guess it is probably not that. It's possible it could be Ripartites albidoincarnatus EU, as it matches some sequences with that name too.
Ripartites CA02 - similar, known from OR and CA.
Ripartites PNW02 - It is believed that our fuzzy white capped, strongly decurrent pink gilled species is unnamed, and something similar occurs in the EU as well. We have one unique sequence from the WA/ID border not matching anything else.
Ripartites PNW03 - collected as Ripartites helomorphus EU under an introduced Cypress family tree in OR, but likely not that species.
Ripartities 'odorus CA01' - sequenced from CA, AZ, and WA, has a strong odor. WNA sequences are 4-5 bp different than one EU sequence of what I think is an EU species.

Ripartites 'tricholoma PNW01' © Connor Dooley, Ripartites 'tricholoma PNW04' © Yi-Min Wang, R. CA02 © Bruce McCullough (2 images)

Ripartites PNW02 © Andrew Parker, Ripartites PNW03 © Connor Dooley, R. 'odorous CA01' © Kendra Dedinsky

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