When the cross involves species of different genera, such as Brassavola X Laelia, for example, the name is modified and the genera obtained is named Brassolaelia. The Brassolaelia Morning Glory, for example, is the result of crossing Brassavola nodosa X Laelia purpurata.
With the successive crosses, another names should be created such as Potinara, which is the result of crossing Brassavola, Cattleya, Laelia and Sophronitis. For those hybrids involving many genera, in order to avoid a very big name, the rule is form a new name and adding "ara" at the end.
Every species contributes with an unique characteristic that influences the final result of a combination which takes times to be achieved. We never know the result of a crossing until we have the first blooming, even so, in the same lot of plants coming from the same sowing seed, the result can vary a lot. That is why, hybridizers always keep, at least 50 seedlings of the same sowing because they know exactly that there can be a great variety in the plants (shape and color), as children of the same parents, they look like but they are no identical to their parents nor their siblings.
To get a plant with identical flowers, we should use meristem culture, that is the only way to get an exact replica of a plant.
Remake a hybrid from different matrixes (mainly with different varieties or cultivars) can result in rather distinct flowers. In spite of a careful selection of the matrixes, the result is always a lottery and the search for the perfection never ends because another hybridizers can repeat the same hybrids with another matrixes (aiming the improving) or cross one hybrid with another to get another plant and this for successive generations.
The hybridizing allows the crossing of species to obtain plants that will never naturally exist because they come from different habitats, bloom in different season or they do not have the same pollinator.

Why do hybrids?

It could be mainly by commercial reasons such as: the possibility of having blooming plants in different times of the year, anticipation or postponing of the blooming season, make the cultivation easier (those plants are not so exigent like the species), the reduction of the waiting time for blooming, more vigorous and resistant plants, the diminution of the size allowing to cultivate more plants or in a reduced place, long lasting blooming, better adaptation to adverse conditions of temperature by making them more tolerant to hot or coldness (by crossing of species from hot climate with those intermediate conditions).
Or it would be the eternal search of the human being for the beauty, trying to repeat the best characteristics of the matrixes, to get a best shape of the flowers, more shining colors, frequent blooming, amplification of the possibilities of different colors and different shapes, as well as the enlargement of the size of the flower.

The doubt remains. Why do hybrids?

Let us put aside all those commercial points of view, all those divagations and let us enjoy the work of two hybridizers who stand out in Brazil.

The first one in the past (although recent) and the second, in the present:

Rolf Altenburg, from Florália, because when we talk about Cattleya hybrids, we should mention him, due to the great performance he did, between the decades 50 and 80

and

Roberto Agnes, from Aranda, who works with Cattleya, but also with Oncidium.

However they are not the only ones, we also have or had: Waldemar Silva, from Orquidário Brasil (more than 100 híbridos, from l953 to l981), Sergio Barani, more than 70 hybrids, Roland B. Cooke, from Orchid Castle, more than 40 hybrids, Alex Sauer (10), Orquidário Quinta do Lago (4) , Álvaro Pessoa (10) and Florália.

(*)Calanthe Dominyi (Calanthe furcata x Calanthe masura), at James Vietch & Sons, by John Dominy

Bibliography:
Antoine des Épinards, translated by Raimundo Mesquita (Orquidario volumes 8/3 e 4, volume 9/2),
Orchidées, de David Menzies, Solar
Orquídeas de Jack Kramer, editora Salamandra
Orchid Growing in the Tropics, Orchid society of South East Asia.

ROBERTO: I wanted to get a plant very close to Blc. Toshie Aoki, without being Blc. Toshie Aoki itself and inject a new blood. In order to give a new strengh to the growth, I used Blc. Williette Wong, which is 50% Blc. Toshie Aoki and cross it again with Blc. Toshie Aoki.

ROBERTO: I got a plant called Slc. Orient Amber 'Florida' which is orange and cross with Bc. Pastoral that blooms for Mother's Day. I wanted a soft colored plant, blooming at Mother's Day and I finished for getting a plant that blooms all year rond.
I have plants blooming in May, June, September because I used two plants that flower in different season of the year.


ON: You used Bc. Pastoral alba...

ROBERTO: Yes. All of them have passion-fruit colors, straw-colored, wide petals due to Bc. Pastoral and very big flowers with a touch of salmon color in the lip.

ON: The colors are very soft.

I don't want this. I want that the person identifys, this plant is passion-fruit color, milk shake of raspberry, it should have a defined, an identifiable color.
This is very important when you made those pastel tones.
That is what I am trying to do because there are many lilac, many purple plants but too few plants which I call true pink . Even under the light, it reamins true pink. To me Bc. Turandot 'Guaxupé' is one of the best specimen of pink plant did in Brasil and I used, in my opinion, one of the best in USA: Bc. Pink Sensation. The result is all that I supposed, limpid pink with much yellow in the lip giving a very beautiful contrast.

ROBERTO: One of the parents, Lc. S. J. Bracey, had aldready this color or similar, however it was not so accentuated, there was already this red edge, those filigrees around, it has been crossed with Blc. Saga which flowers are entirely yellow, however they also have an intense red.
With this cross, the red filigree around , this edged has been intensified, as it was my purpose.
Brief, the flowers are, in general, ochre-orange colored and the lip is almost always dark red.

ROBERTO: It is a cross of C. aclandiae and C. Enid 'Butterfly' and the firsts seedlings carry medium size flowers.
The flowers are almost always white with dark pink lip in a reduced size plants due to the first matrix.

ON: And what about Potinara Samba Laranja?

ROBERTO: It has elongated stem carrying up to 5 oragen wonderful flowers.