Hello !

Try to cross: you'll see :-)) Just do it ;-)
Anyway, you should be able to cross a pansy with another one: almost all the pansies you can find in nurseries are hybrids :-)
Some thought it was not possible to walk on the moon and then it happened, maybe some have thought nothing is impossible until you're really want it !
Good crosses and good fun with them :-)

Take care :-)

i have plants of viola corsica in my garden and find they seem to cross with other violas in the garden. perhaps it's because the bees love them. some very cheerful hybrids of corsica and hispida are populating parts of the garden. watch for seedlings of viola dubyana to see if the leaf and flower shape of viola corsica 'infuse'.

V. corsica and other species pansies make good candidates for crossing experiments, because the chances of success are good, and there are so many species to choose from, with different colours and sizes, and they produce flowers over a long season (so you've got lots of chances).
Then, once you've collected the seed, so it straight away, and keep fingers crossed...
Then you'll need to decide which ones are worth keeping.
Then you'll be into cuttings (since seed may be unreliable).
All good fun.
I did some corsica x stojanowii a couple of years ago; some of the progeny starting to flower again now :)

Corsica x hispida, eh Rob?
Nice one.

For me, the V. sororia cultivars flower well-clear of the leaves; perhaps because I grow them in a (cold) greenhouse - maybe the extra shelter advances the flowers more than the leaves.

I would bet also, that Viola dubyana and Viola corsica would cross. I've grown quite a few intentional Viola corsica X Pansy crosses, and this year I've got Viola arvensis X Viola corsica plants in bloom right now (also from controlled pollination).

As Mike indicated above, the pansy species make "good candidates for crossing experiments". I've found more compatible combinations among them than incompatible ones.