Mainland Southeast Asia

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**Indochina**: Dark green: always included, Light green: usually included, Red: sometimes included.
**Indochinese Region** (biology): Dark and Light green.

The Indochinese peninsula is a region in Southeast Asia. It lies roughly southwest of China, and east of India. The name has its origins in the French, Indochine, as a combination of the names of "China" and "India", and was adopted when French colonizers in Vietnam began expanding their territory to bordering countries.^{[citation needed]} The term Indochina is also used in biogeography for the Indochinese Region, a major biogeographical region within the Indomalaya ecozone.

Geography

In a strict sense, Indochina comprises the territory of the former French Indochina:

However, in a wider sense, the cultural region is better described as Mainland Southeast Asia in which sense it also includes:

Burma (also Myanmar—part of British India until 1937)
Thailand (formerly Siam)
Sometimes Peninsular Malaysia and Singapore ^{[citation needed]}

Biogeography

The Indochinese Region is a major biogeographical region in the Indomalaya ecozone, and also a phytogeographical floristic region in the Paleotropical Kingdom. It includes the native flora and fauna of all the countries above. The adjacent Malesian Region covers the Maritime Southeast Asian countries, and straddles the Indomalaya and Australasian ecozones.

References

History of the mountain people of southern Indochina up to 1945 (Bernard Bourotte, i.e. Jacques Méry, U.S. Agency for International Development, 195?

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