Hmm.. HMF has this rose listed, but doesn't have any pictures or sources. Have you been able to look it up in the Combined Rose List?

Jackie

I checked CRL's 1984 - 2000 and 2012 (thank you, Jackie!). It isn't in any of them. Kim

Reading this reference on HMF,

"Monographie du Genre RosierEDIT
Book (1824) Page(s) 155.
R. sulfurea Var. minor. Pourpre jaune. This variety does not bloom unless grafted, and that rarely; it is double the former [R. sulpfurea]." R. Hemisphaerica is a synonym for sufphueera. Perhaps what you're looking for might be might be Sulpheraea flore plena? Kim

Here is a link that might be useful: R. Hemisphaerica flore plena

My understanding was it is a sport of species hemisphaerica? My interest is the 2ft stature read from modern roses12.