Cymbidiums are part of the Orchidaceae family. They originally come from tropical and subtropical Asia, such as northern India, China, Malaysia and Bornia. Even from the northern part of Australia. They have been cultivated (mostly in China) for hundreds of years, but only became popular in the western world during the Victorian era (around 150 years ago).
Cymbidiums are, just like most Orchid species, epiphytic. Which means they life on other plants (such as trees) and collect their nutrients from rain and decaying plants around them

The species Cymbidium hookerianum is considered a delicacy in Bhutan where it is traditionally cooked in a spicy curry or stew called "olatshe" or "olachoto". Sounds good doesn't it?

Below you see some varieties.

Cymbidium Australian Red

Cymbidium Silver

Cymbidium C290


Phalaenopsis' are originally from southeast Asia. This includes southern China, Indonesia, Thailand and the Philippines. The species are sometimes called "moth orchids". This is because the flowers of some species supposedly resemble moths in flight. 
Most are epiphytic shade plants. This means the plants grow harmlessly upon another plant (such as a tree) and collects its moisture and nutrients from the air, rain and sometimes from debris accumulating around it. That's why they are sometimes called "air plants".
Some species are lithophytes, which means the plants grow in or on rocks. They also get their nutrients from rain water and nearby decaying plants.

Phalaenopsis are unique in that in some species, the flowers turn into green leaves after pollination. Normally flowers serve to attract pollinating insects and protect essential organs. Following pollination, petals will usually wilt and disintegrate, because their "work" is done. In many Phalaenopsis species the petals and sepals find new uses following pollination. In producing choroplasts, they turn green, become fleshy and apparently start to photosynthesize, as leaves do. Amazing!

Check out some varieties below.

Phalaenopsis Kobe

Phalaenopsis Marbella

Phalaenopsis Detroit

Phalaenopsis Seoul