From Wikipedia, the free encyclopedia
Genus of orchids
Zeuxine
, commonly known as
verdant jewel orchids
,
[2]
is a
genus
of about eighty species of
orchids
in the tribe
Cranichideae
. They are
native
to parts of tropical
Africa
,
Asia
,
Southeast Asia
,
New Guinea
,
Australia
and some
Pacific Islands
. They have relatively narrow, dark green leaves and small, dull-coloured
resupinate
flowers with the
dorsal
sepal
and
petals
overlapping to form a hood over the
column
. The
labellum
has a pouched base and its tip has two lobes.
Description
[
edit
]
Orchids in the genus
Zeuxine
are
terrestrial
,
perennial
,
deciduous
,
sympodial
herbs
with a fleshy, creeping, above-ground
rhizome
anchored by wiry roots. The leaves are thinly textured and stalked, arranged in a
rosette
at the base of the flowering stem or scattered along it. Small, resupinate dull-coloured flowers are often crowded along the short flowering stem which usually has protruding
bracts
. The dorsal sepal and petals overlap, forming a hood over the column. The
lateral
sepals overlap the base of the
labellum
which is usually white, has a pouched base and a number of stalkless
glands
. The column is short with two stigmas.
[2]
[3]
[4]
[5]
[6]
Taxonomy and naming
[
edit
]
The genus
Zeuxine
was first formally described in 1826 by
John Lindley
who gave it the name
Zeuxina
but
Zeuxine
is the
nom. cons.
The description was published in the appendix of
Collectanea Botanica
.
[1]
[7]
[8]
The name
Zeuxine
is derived from the
Latin
word
zeuxis
meaning "joining" or "yoking"
[9]
in apparent reference to either the partly fused column or to the
pollinia
.
[3]
Distribution and habitat
[
edit
]
Plants in the genus
Zeuxine
usually grow in dark, moist forests where the humidity is always high or near swamps and seepage areas. They occur in tropical regions between Africa and Asia, in Southeast Asia, New Guinea, Australia and some Pacific Islands. Fourteen species are
endemic
to China and ten in
Taiwan
.
Zeuxine strateumatica
is
naturalised
on the
Hawaiian Islands
and in the south-eastern
United States
.
[3]
[4]
[5]
[6]
List of species
[
edit
]
The following is a list of species of
Zeuxine
recognised by the
World Checklist of Selected Plant Families
as at August 2018:
[1]
References
[
edit
]
- ^
a
b
c
d
"
Zeuxine
"
.
World Checklist of Selected Plant Families
(WCSP)
.
Royal Botanic Gardens, Kew
.
- ^
a
b
Jones, David L. (2006).
A complete guide to native orchids of Australia including the island territories
. Frenchs Forest, N.S.W.: New Holland. p. 350.
ISBN
1877069124
.
- ^
a
b
c
D.L.Jones
; T.Hopley; S.M.Duffy (2010).
"
Zeuxine
"
.
Australian Tropical Rainforest Orchids
. Centre for Australian National Biodiversity Research (CANBR),
Australian Government
. Retrieved
28 May
2021
.
- ^
a
b
Chen, Xinqi; Gale, Stephen W.; Cribb, Phillip J.; Ormerod, Paul.
"
Zeuxine
(
?柱??
xian zhu lan shu)"
. Flora of China
. Retrieved
5 September
2018
.
- ^
a
b
Leou, Chong-Sheng.
"
Zeuxine
(
線柱蘭屬
)"
. Digital flora of Taiwan
. Retrieved
5 September
2018
.
- ^
a
b
"Genus:
Zeuxine
"
. North American Orchid Conservation Center
. Retrieved
5 September
2018
.
- ^
"
Zeuxine
"
. APNI
. Retrieved
5 September
2018
.
- ^
Lindley, John (1826).
Collectanea Botanica (Appendix 1)
. London
. Retrieved
5 September
2018
.
- ^
Brown, Roland Wilbur (1956).
The Composition of Scientific Words
. Washington, D.C.: Smithsonian Institution Press. p. 144.
External links
[
edit
]
- Media related to
Zeuxine
at Wikimedia Commons