Antarctic Floristic Kingdom

Source: Wikipedia, the free encyclopedia.
Fitzroya cupressoides, Chiloé Island
Phormium tenax, Piha
, New Zealand

The Antarctic Floristic Kingdom, also the Holantarctic Kingdom, is a

botanist Ronald Good, and later by Armen Takhtajan.[1] The Antarctic Floristic Kingdom is a classification in phytogeography, different from the Antarctic realm classification in biogeography, and from Antarctic flora genera/species classifications in botany
.

Geography

The Antarctic Floristic Kingdom includes the continent of Antarctica, Patagonia (southern Chile, southern Argentina, Tierra del Fuego), most of New Zealand, the New Zealand Subantarctic Islands, and all islands of the Southern Ocean south of 40°S latitude, including Gough Island, the Kerguelen Islands, and the Falkland Islands. Tasmania is omitted since its plant species are more closely related to those found in the Australian Floristic Kingdom.

Flora

The

Holarctic Kingdom since the Tertiary period. Ronald Good noted, as had Joseph Dalton Hooker much earlier, that many plant species of Antarctica, temperate South America and New Zealand were very closely related, despite their disjunction by the vast Southern Ocean
.

According to Ronald Good, about 50

Pringlea antiscorbutica of the Kerguelen Islands, and the megaherb
genera of the New Zealand Subantarctic Islands.

According to Takhtajan, the following

Subdivisions

The

Antarctic convergence
zone.

Floristic Regions

The Floristic Regions in the Antarctic Floristic Kingdom are the:

  • Fernandezian Region
  • Argentina-Chile-Patagonian Region
  • South Subantarctic Islands Region
  • Neozeylandic Region

Fernandezian Region

The

Neotropical Kingdom. It includes the Juan Fernández Islands and Desventuradas Islands
archipelagoes off the west coast of Chile.

Juan Fernández Province

Argentina-Chile-Patagonian Region

.

Within southern South America, in regions of Chile and Argentina.

Northern Chilean Province
Central Chilean Province
Argentine Pampas Province
Patagonian Province
Tierra del Fuego Province

Neozeylandic Region

Entelea arborescens, Auckland
, New Zealand.

The greater

.

  • Endemic family:
    Ixerba brexioides
    . The only endemic New Zealand vascular plant family.
  • Endemic genera: 50, including
    Desmoschoenus
    ),
  • Endemic species: very high species endemism, especially among
    Pinophyta
    .
  • Provinces
Lord Howe Province
Norfolkian Province
Kermadecian Province
Northern Neozeylandic Province
Central Neozeylandic Province
Southern Neozeylandic Province
Chatham Province
New Zealand Subantarctic Islands Province

South Subantarctic Islands Region

The South Subantarctic Islands

  • Endemic species:
    Pringlea antiscorbutica
TristanGough Province
Kerguelen Province

See also

References

  1. ^ a b c Takhtajan, A. (1986). Floristic Regions of the World. (translated by T.J. Crovello & A. Cronquist). University of California Press, Berkeley, PDF, DjVu.
  2. ^ Takhtajan, A. 1969. Flowering plants: origin and dispersal. Transl. by C. Jeffrey. Oliver &. Boyd, Edinburgh. 310 pp. [1].
  3. ^ Тахтаджян А. Л. Флористические области Земли / Академия наук СССР. Ботанический институт им. В. Л. Комарова. — Л.: Наука, Ленинградское отделение, 1978. — 247 с. — 4000 экз. DjVu Archived 2018-10-05 at the Wayback Machine, Google Books.

External links