In the literature, the abbreviation sp. is generally used to refer to a
single species which is unknown. In reference to a larger group of species,
spp. is used.
Joe
On 16 Feb 1997 hbkg at hitel.kol.co.kr wrote:
> In an article, Bacillus sp. and Bacillus spp. can be found.
> By the way, what is the difference between sp. and spp.?
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