''Calomnion milleri'' is a species of moss known only from

Lord Howe Island Lord Howe Island (; formerly Lord Howe's Island) is an irregularly crescent-shaped volcanic remnant in the Tasman Sea between Australia and New Zealand, part of the Australian state of New South Wales. It lies directly east of mainland Port ...

in the

Tasman Sea The Tasman Sea is a marginal sea of the South Pacific Ocean, situated between Australia and New Zealand. It measures about across and about from north to south. The sea was named after the Dutch explorer Abel Janszoon Tasman, who in 1642 wa ...

between

Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...

and

New Zealand New Zealand () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of isla ...

. It grows on the aerial

adventitious Important structures in plant development are buds, shoots, roots, leaves, and flowers; plants produce these tissues and structures throughout their life from meristems located at the tips of organs, or between mature tissues. Thus, a living plant ...

roots of tree-ferns at elevations of 450–875 m. ''Calomnion milleri'' is a small, dioecious, yellow-green plant rarely more than 10 mm tall. It has two types of leaves, both subulate (with a long, narrow tip).

Setae In biology, setae (; seta ; ) are any of a number of different bristle- or hair-like structures on living organisms. Animal setae Protostomes Depending partly on their form and function, protostome setae may be called macrotrichia, chaetae ...

are 0.8–1.0 mm long; cylindrical capsules 1.2–1.4 mm long. It is distinguished from other species in the genus by its thickened leaf margins, its capsules shorter than the

setae In biology, setae (; seta ; ) are any of a number of different bristle- or hair-like structures on living organisms. Animal setae Protostomes Depending partly on their form and function, protostome setae may be called macrotrichia, chaetae ...

, and the long, slender subulate leaves.Vitt, D. H. 1991. A new species of ''Calomnion'' (Bryopsida) from Lord Howe Island. Novon 1: 53–55.
/ref>Vitt, D. H. 1995. The genus ''Calomnion'' (Bryopsida): taxonomy, phylogeny, and biogeography. Bryologist 98: 338–358.

References

Rhizogoniaceae Endemic flora of Lord Howe Island {{bryidae-stub