[Symbiote]

The DNA Bank Network [1] indexes DNA samples held by several DNA banks — there are more banks not indexed by this system.

There are 224 different mammals so far, but no rhinos.

For plants, the Millennium Seed Bank [2] is collecting and storing seeds with the aim to have all species. They have 13% of plant species so far.

[1] http://www.dnabank-network.org/

[2] http://www.kew.org/science-conservation/collections/millenni... (my previous employer; they're recruiting for Linux analysts at the moment).