In nomenclature, what does "cf" mean?

Paul Pirot paul.pirot.mycology at
Wed Jan 9 05:41:57 EST 2002

It means that it's not properly that species (A. rubescens), but "going to",
"looking like" very much, quite the same as A. rubescens (see the meaning of
"confer" in Latin = compare with).


----- Original Message -----
From: "Daniel B. Wheeler" <dwheeler at>
Newsgroups: bionet.mycology
To: <bionet-mycology at>
Sent: Tuesday, January 08, 2002 10:24 AM
Subject: In nomenclature, what does "cf" mean?

> In reading my of my older McIlvania's, I came across A(manita). cf.
> rubescens. What does the cf. stand for? I have seen the reference in
> some of my collections as well, but do not recognize the reference.
> Daniel B. Wheeler

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