Threatened and uncommon bryophytes of New Zealand (2010 revision)

Abstract 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.