Ah, ok, I thought 'Thermophyllic Abiasa type C' on that chart corresponded approx. to the 'C201' I have. Plainly not.
I'm all new to this - my wife bought me the Caldwell book for my birthday, so I was casting about for the cultures mentioned therein, but in the UK, the suppliers seem to sell generic 'thermophyllic', etc, cultures, as opposed to named (eg) 'Abiasa Thermo B'. So, I ordered "Parmesan & Romano Starter: Thermophyllic', hoping it would do the trick, and what they sent was C201.
Thanks for your replies.