Please help me to identify this cattleya
 

Hi, everyone!

Need some help to identify some orchids that i've earned last year.

I was trying to do it, but i have no knowledge yet. If you guys may help me, i wolud be so grateful.

:hello

Cattleya Percivaliana semi alba would be my guess.

What is the fragrance like?

Very soft fragrance. Anexed another picture so may be help a little more.

I've been thinking in a percivaliana or a trianae...

It has a small and very light purple shading at the ends of the petals and a scratch at the tips of the 3 sepals

Triane usually blooms at Christmas. I will let other more seasoned vets chime in.

Beautiful plant!

Thanks!!:D

Well, it is late fall in Brazil. So maybe. I wonder if the semi-alba one with the broad lip might be C. labiata. The other might be percivaliana, I'm not knowledgeable enough on the Catt species to know the variations that are possible.

Same orchid in all photos. Flash has whitened the foto in the second day opening. In third day, became less white (coerulea, isn't??).

Ah... looking at the bloom times of my Catt species, I see that C. labiata typically blooms for me in October in the northern hemisphere... which would be right about now for the same season in the southern hemisphere. So... maybe C. labiata semi-alba or coerulea?

Where can I get a method for classifying orchids? Do we have relevant literature for this?

There is LOTS of literature. In fact, I would expect that the Brazilian orchid societies have lots of pictures and references... more than any place else. Also the American Orchid Society AOS.org . There's so much "data" that finding that bit of information that you're seeking in the volume will be the challenge.

Coordenadoria das associações orquidófilas do Brasil, also the websites of the various Brazilian orchid nurseries will have lots of pictures.