Threatened and uncommon bryophytes of New Zealand (2010 revision)

The threat status of New Zealand's bryophytes (currently 13 hornwort species, 608 liverwort species and 520 moss species) has been re-evaluated, using revised New Zealand Threat Classification System criteria. Threatened or uncommon status has been applied to 269 taxa (c. 24% of the total number of species) and to 25 entities that are either described but disputed or are undescribed. No taxa are known to be extinct. Forty-one taxa are listed as Threatened (26 Nationally Critical, 9 Nationally Endangered and 6 Nationally Vulnerable). One hundred and thirty-six taxa and entities are listed as At Risk, including 122 Naturally Uncommon, 2 Relict and 1 Declining, 8 Non-resident Native, and 3 Introduced and Naturalized. One hundred and thirty-five taxa and entities are Data Deficient.