Can you do me a favor? 
Where can I get a list of species belonging to following families that are found in India: 
1. Lauraceae
2. Salicaceae
3. Euphorbiaceae
4. Thymelaeaeae
Also, I am looking for these plants but I can’t find a source for these in india. Can you help me with that?
1. Persea Indica
2. Ryania speciosa 
3. Itoa orientalis
4. Cinnamomum cassia.

You can check genus pages under these families, on our site.
Around 70 to 80 % species are listed.