nomenclatural question

[Paul van Rijckevorsel]

From: Steven R. Hill <srhill at INHS.UIUC.EDU>
> As far as I know there are no restrictions,
> other than the fact that '-oides' must be a suffix of a noun, and the noun
> is usually Greek because this is a Greek suffix, but I don't believe there
> is any formal rule on this, just tradition.

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Arguably there is no real Rule on formation of specific epithets at all, as
Art 23.2 states "... may even be composed arbitrarily ..."
which can be taken to mean anything you want it to mean!

However as to not mixing a Greek noun with a non-Greek suffix there is
Rec 23A.3(c) (note also Rec 20A.1.(d))
http://www.bgbm.fu-berlin.de/iapt/nomenclature/code/SaintLouis/
+ + +

From: J Betts <jimbetts at XTRA.CO.NZ>
> One is "arachnoides", from "like a spider's web".
> Presumably there is a Linnaean binomial that incorporates this example?

+ + +
IPNI gives some thirty names using "arachnoides", but none by Linnaeus.
It describes a plant seemingly covered by spiders webs, or with such parts.

Best,
Paul van Rijckevorsel
Utrecht, NL