Marsellesa is a Sarchimor-family variety — Villa Sarchi crossed with the Timor hybrid — developed by CIRAD and ECOM and released for Central America.
Why it spread
The coffee leaf rust epidemic that swept Central America from 2012 devastated Caturra and Bourbon plantings. Farms needed a resistant variety that did not cup as poorly as Catimor.
Marsellesa fitted, and it was planted widely in Nicaragua, Honduras, Mexico and Guatemala.
The profile
Clean and sweet with a moderate acidity and medium body. Dependable rather than exciting — noticeably better than Catimor, not quite Bourbon.
At altitude and with careful processing it cups genuinely well.
Its role in breeding
Marsellesa is one parent of Starmaya, the first F1 hybrid designed to be propagated by seed rather than by cuttings. That makes it significant beyond its own plantings.
The pattern
Every rust-resistant variety has followed the same arc: deployed for survival, criticised for cup, gradually accepted as growing conditions prove to matter more than lineage.
Brewing it
Filter or espresso at medium roast.