ssb. or subsp.?

[Piers Trehane]

In article <01bc4368$704103a0$dae24cc3 at santos>, Santos Serrano
<santo at redestb.es> writes
>What is the correct form to write?
>
>ssb. or subsp.?
>
>For example:
>       Digitalis lutea subsp. lutea
>or     Digitalis lutea ssp. lutea
>
>               Thank you.

There is no "correct" way - either way will do, its just a matter of
editorial style.
IMHO, using subsp. although 2 characters longer, is more logical to the
human eye.
Piers

-- 
Piers Trehane
Rapporteur, Interenational Code of Nomenclature for Cultivated Plants