I found the "Martius project Flora Brasiliensis" on the links on the Belgain Botanical Garden site which I found on wiki under Herbarium Martii! But I see it's linked on wiki too.. as well as other interesting links.
http://projects.bebif.be/enbi/...
http://www.br.fgov.be/PUBLIC/G...
http://en.wikipedia.org/wiki/C...
Martius was one of the founders of Flora Brasiliensis,
The entire archives, with detailed lists for many of Martius’ acquisitions, are also conserved in the herbarium of the National Botanic Garden of Belgium.
http://www.br.fgov.be/PUBLIC/G...
Maybe you could get help from the NBG of Belgium Myriam!
We can check out Flora Brasiliensis to see what we can find there even if we couldn't translate it, some things such as a height can be recognised.