I'm questioning whether this is Tibouchina heteromala, it looks like some are selling this plant under that name. There appears to be both white and red centres so maybe they mature to red?
The Tibouchina heteromala I found on Wikispecies is different, without the red centre. When you enlarge the photo the title is Tibouchina grandiflora on all the photos there, but underneath in the description they all state Tibouchina heteromala..
http://en.wikipedia.org/wiki/T...
This photo is in the Botanical Gardens of Lisbon,
http://en.wikipedia.org/wiki/F...
Tibouchina heteromalla (D. Don.) Cogn. - MELASTOMATACEAE - Sin. T. multiflora - Parque Estadual do Biribiri - Diamantina - Minas Gerais - Brasil.
http://en.wikipedia.org/wiki/F...
Tibouchina grandifolia - MELASTOMATACEAE Campus da Universidade de BrasÃlia - Distrito Federal - Brasil.
http://en.wikipedia.org/wiki/F...
There's a very long list of Tibouchina for Brazil although many are obviously very different..
Melastomataceae Tibouchina ackermannii Cogn.
Melastomataceae Tibouchina aegopogon (Naudin) Cogn.
Melastomataceae Tibouchina alata Cogn.
Melastomataceae Tibouchina albescens Cogn. ex Glaz.
Melastomataceae Tibouchina angustifolia
Melastomataceae Tibouchina apparicioi Brade
Melastomataceae Tibouchina arborea (Gardner) Cogn.
Melastomataceae Tibouchina arenaria Cogn.
Melastomataceae Tibouchina aspera Aubl.
Melastomataceae Tibouchina asperior (Cham.) Cogn.
Melastomataceae Tibouchina australis (Triana) Cogn.
Melastomataceae Tibouchina axillaris Cogn.
Melastomataceae Tibouchina bahiensis Wurdack
Melastomataceae Tibouchina barbigera (Naudin) Baill.
Melastomataceae Tibouchina barnebyana Wurdack
Melastomataceae Tibouchina benthamiana (Gardner) Cogn.
Melastomataceae Tibouchina bergiana Cogn.
Melastomataceae Tibouchina blanchetiana Cogn.
Melastomataceae Tibouchina boraceiensis Brade
Melastomataceae Tibouchina boudetii P.J.F.Guim. & R.Goldenb.
Melastomataceae Tibouchina bradeana Renner
Melastomataceae Tibouchina caldensis Cogn.
Melastomataceae Tibouchina candolleana (Mart. ex DC.) Cogn.
Melastomataceae Tibouchina canescens (D.Don) Cogn.
Melastomataceae Tibouchina cardinalis (Humb. & Bonpl.) Cogn.
Melastomataceae Tibouchina carvalhoi Wurdack
Melastomataceae Tibouchina castellensis Brade
Melastomataceae Tibouchina cerastifolia Cogn.
Melastomataceae Tibouchina chamissoana Cogn.
Melastomataceae Tibouchina cinerea Cogn.
Melastomataceae Tibouchina cisplatensis Cogn.
Melastomataceae Tibouchina claussenii (Naudin) Cogn.
Melastomataceae Tibouchina clavata (Pers.) Wurdack
Melastomataceae Tibouchina clidemioides (Triana) Cogn.
Melastomataceae Tibouchina clinopodifolia Cogn.
Melastomataceae Tibouchina cordifolia Cogn.
Melastomataceae Tibouchina corymbosa (Raddi) Cogn.
Melastomataceae Tibouchina crassiramis Cogn.
Melastomataceae Tibouchina cristata Brade
Melastomataceae Tibouchina cryptadena Gleason
Melastomataceae Tibouchina debilis Cogn.
Melastomataceae Tibouchina dendroides (Naudin) Cogn.
Melastomataceae Tibouchina discolor Brade
Melastomataceae Tibouchina divaricata Cogn.
Melastomataceae Tibouchina dubia Cogn.
Melastomataceae Tibouchina dusenii Cogn.
Melastomataceae Tibouchina edmundoi Brade
Melastomataceae Tibouchina eichleri Cogn.
Melastomataceae Tibouchina elegans (Gardner) Cogn.
Melastomataceae Tibouchina estrellensis (Raddi) Cogn.
Melastomataceae Tibouchina exasperata (Naudin) Cogn.
Melastomataceae Tibouchina fissinervia (Schrank & Mart. ex DC.) Cogn.
Melastomataceae Tibouchina floribunda Cogn.
Melastomataceae Tibouchina formosa Cogn.
Melastomataceae Tibouchina fothergillae (Schrank & Mart. ex DC.) Cogn.
Melastomataceae Tibouchina foveolata (Naudin) Cogn.
Melastomataceae Tibouchina francavillana Cogn.
Melastomataceae Tibouchina frigidula (DC.) Cogn.
Melastomataceae Tibouchina gardneri (Naudin) Cogn.
Melastomataceae Tibouchina gardneriana (Triana) Cogn.
Melastomataceae Tibouchina gaudichaudiana (DC.) Baill.
Melastomataceae Tibouchina gracilis (Bonpl.) Cogn.
Melastomataceae Tibouchina granulosa (Desr.) Cogn.
Melastomataceae Tibouchina hassleri Cogn.
Melastomataceae Tibouchina hatschbachii Wurdack
Melastomataceae Tibouchina herbacea (DC.) Cogn.
Melastomataceae Tibouchina herincquiana Cogn.
Melastomataceae Tibouchina heteromalla (D.Don) Cogn.
Melastomataceae Tibouchina hieracioides (DC.) Cogn.
Melastomataceae Tibouchina hirsutissima Cogn.
Melastomataceae Tibouchina hospita Cogn.
Melastomataceae Tibouchina itatiaiae Cogn.
Melastomataceae Tibouchina kleinii Wurdack
Melastomataceae Tibouchina kuhlmannii Brade
Melastomataceae Tibouchina laevicaulis Cogn. ex Wurdack
Melastomataceae Tibouchina langsdorffiana (Bonpl.) Baill.
Melastomataceae Tibouchina lhotzkyana (C.Presl) Cogn.
Melastomataceae Tibouchina lithophila Wurdack
Melastomataceae Tibouchina llanorum Wurdack
Melastomataceae Tibouchina longifolia (Vahl) Baill.
Melastomataceae Tibouchina longipilosa Cogn.
Melastomataceae Tibouchina longistyla (Cogn.) Renner
Melastomataceae Tibouchina luetzelburgii Markgr.
Melastomataceae Tibouchina lutzii Brade
Melastomataceae Tibouchina macrochiton (Mart. ex DC.) Cogn.
Melastomataceae Tibouchina manicata Cogn.
Melastomataceae Tibouchina martialis (Cham.) Cogn.
Melastomataceae Tibouchina martiusiana (DC.) Cogn.
Melastomataceae Tibouchina maximiliana (DC.) Baill.
Melastomataceae Tibouchina melanocalyx R.Romero et al.
Melastomataceae Tibouchina melastomoides (Naudin) Cogn.
Melastomataceae Tibouchina mello-barretoi Brade
Melastomataceae Tibouchina microphylla Cogn. ex Schwacke
Melastomataceae Tibouchina minor Cogn.
Melastomataceae Tibouchina minutiflora Cogn.
Melastomataceae Tibouchina mosenii Cogn.
Melastomataceae Tibouchina mutabilis (Vell.) Cogn.
Melastomataceae Tibouchina nitida (Graham) Cogn.
Melastomataceae Tibouchina noblickii Wurdack
Melastomataceae Tibouchina nodosa Wurdack
Melastomataceae Tibouchina oreophila Wurdack
Melastomataceae Tibouchina pallida Cogn.
Melastomataceae Tibouchina papyrus (Pohl) Toledo
Melastomataceae Tibouchina paratropica (Griseb.) Cogn.
Melastomataceae Tibouchina parviflora Cogn.
Melastomataceae Tibouchina paulo-alvinii P.J.F.Guim.
Melastomataceae Tibouchina pereirae Brade & Markgr.
Melastomataceae Tibouchina pilosa Cogn.
Melastomataceae Tibouchina pogonanthera (Naudin) Cogn.
Melastomataceae Tibouchina prostrata Ule
Melastomataceae Tibouchina pulchra Cogn.
Melastomataceae Tibouchina quartzophila Brade
Melastomataceae Tibouchina radula Markgr.
Melastomataceae Tibouchina ramboi Brade
Melastomataceae Tibouchina regnellii Cogn.
Melastomataceae Tibouchina reitzii Brade
Melastomataceae Tibouchina riedeliana Cogn.
Melastomataceae Tibouchina rigidula (Naudin) Wurdack
Melastomataceae Tibouchina rubrobracteata R.Romero & P.J.F.Guim.
Melastomataceae Tibouchina rupestris Cogn.
Melastomataceae Tibouchina rupicola Hoehne
Melastomataceae Tibouchina salviaefolia (Cham.) Cogn.
Melastomataceae Tibouchina scaberrima (Triana) Cogn.
Melastomataceae Tibouchina schenckii Cogn.
Melastomataceae Tibouchina schwackei Cogn.
Melastomataceae Tibouchina sebastianopolitana Cogn.
Melastomataceae Tibouchina sellowiana Cogn.
Melastomataceae Tibouchina semidecandra (Schrank & Mart. ex DC.) Cogn.
Melastomataceae Tibouchina serrana P.J.F.Guim. & A.B.Martins
Melastomataceae Tibouchina sickii Brade
Melastomataceae Tibouchina spruceana Cogn.
Melastomataceae Tibouchina stellipilis Wurdack
Melastomataceae Tibouchina stenocarpa (Schrank & Mart. ex DC.) Cogn.
Melastomataceae Tibouchina stipulacea Vinha
Melastomataceae Tibouchina striphnocalyx (DC.) Gleason
Melastomataceae Tibouchina subglabra Wurdack
Melastomataceae Tibouchina taperoensis Wurdack
Melastomataceae Tibouchina thereminiana (DC.) Cogn.
Melastomataceae Tibouchina tomentulosa Wurdack
Melastomataceae Tibouchina trichopoda (DC.) Baill.
Melastomataceae Tibouchina urbanii Cogn.
Melastomataceae Tibouchina urceolaris (Schrank & Mart. ex DC.) Cogn.
Melastomataceae Tibouchina ursina (Cham.) Cogn.
Melastomataceae Tibouchina urvilleana (DC.) Cogn.
Melastomataceae Tibouchina valtherii Cogn.
Melastomataceae Tibouchina velutina (Naudin) Cogn.
Melastomataceae Tibouchina versicolor (Lindl.) Cogn.
Melastomataceae Tibouchina verticillaris Cogn.
Melastomataceae Tibouchina villosissima (Triana) Cogn.
Melastomataceae Tibouchina virgata (Gardner) Cogn.
I found one with similar flowers which is a possibility Tibouchina elegans, the leaves look very hairy, more research should be done to be sure..
http://131.230.176.4/cgi-bin/d...
A botanical drawing of Tibouchina heteromala which shows a white centre..
http://www.plantillustrations....
This is the project of Flora brasiliensis, as taken from the original obviously with changes..
http://translate.google.co.uk/...
http://florabrasiliensis.cria....
Both T. grandiflora and T. heteromala are listed as species in the original works, but T. grandiflora is not listed in the project so it would appear they are the same species as the organisations giving both names are obviously reliable ones.
There is a description of T. elegans in the original works, but it's in Spanish or Portuguese and I can't copy it to translate but it could be typed out word for word! The listing isn't alphabetical so you can use the 'find' if you can't find it.
The botanical drawing I'm finding of T. elegans doesn't seem to fit either...
http://en.wikipedia.org/wiki/T...
Flickr is often a good place to look but with caution as not everyone has correctly named plants.. with a possibility it can often be confirmed with further searching.
http://www.flickr.com/search/?...
