Observation 25997: Amanita citrina sensu auct. amer.
When: 2009-09-29
Collection location: Maine, USA [Click for map]
No herbarium specimen

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Eye3 = Observer’s choice
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That’s because I made a mistake, now corrected in the comment below.
By: R. E. Tulloss (ret)
2010-03-01 07:48:40 EST (-0500)

I guess it’s age or too many hours one the computer or…

Anyway, I goofed. That should have been “f. straminea.” You’re doing a good job keeping me in line, Herbert! I need someone like you looking over my shoulder.

Thank you.

Very best,

Rod

Amanita brunnescens f. straminea E. J. Gilbert 1941
By: Erlon (Herbert Baker)
2010-02-28 21:01:46 EST (-0500)

I cant seem to find var. straminea?

Let’s not use this name….
By: R. E. Tulloss (ret)
2010-02-28 18:48:22 EST (-0500)

Unfortunately, I can’t really see the bulb clearly in the photo that shows the stipe. If the bulb is typical of a species in A. bulbosa/citrina group, then the very pale cap color is mentioned only the protolog for A. citrina f. lavendula.

I would like to suggest that we not use the name americitrina (which is a “nom. prov.”, not a “nom. nov.”). What if f. lavendula turns out to be taxonomically the same as A. brunnescens f. straminea_ (the other name that we have for a citrina_-like species in eastern N. Amer.)? If that was the case, I’d rather raise an existing name to species rank (_lavendula) than generate a new name. The two names and their correct applications just aren’t known well enough at this time. I’ve done a type study of Gilbert’s "f. straminea; and it is a citrina-like species, NOT a variety of brunnescens; but I have not been able to resolve whether it is distinct from f. lavendula_. More time is needed. More material is needed. I suggest that we NOT use "_americitrina"… We have two choices for eastern N. American citrina-like taxa; and that ought to get us into sufficient confusion without adding another name. I regret that I ever mentioned that there was a possibility of an americitrina. Poor judgment on my part. I’ll eat the crow.

Very best,

Rod

Created: 2009-09-29 23:17:45 EDT (-0400)
Last modified: 2011-03-12 15:02:38 EST (-0500)
Viewed: 98 times, last viewed: 2016-03-22 14:46:42 EDT (-0400)
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