Caladenia uliginosa subsp. uliginosa

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Dainty spider orchid
Caladenia uliginosa subsp. uliginosa growing near Bowelling
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Orchidoideae
Tribe: Diurideae
Genus: Caladenia
Species:
Subspecies:
C. u. subsp. uliginosa
Trinomial name
Caladenia uliginosa subsp. uliginosa
Synonyms[1]

Caladenia uliginosa subsp. uliginosa, commonly known as the dainty spider orchid,

Orchidaceae and is endemic to the south-west of Western Australia. It has a single hairy leaf and up to four greenish-cream flowers which have a forward-projecting labellum
with a dark red tip.

Description

Caladenia uliginosa subsp. uliginosa is a

perennial, deciduous, herb with an underground tuber and a single erect, hairy leaf, 100–160 mm long and 8–10 mm wide. Up to four greenish-cream flowers 80–120 mm long and 40–60 mm wide are borne on a spike 200–350 mm tall. The sepals and petals have brownish, thread-like tips. The dorsal sepal is erect, 45–100 mm long and about 2 mm wide and the lateral sepals are 45–100 mm long, 4–5 mm wide and curve downwards. The petals are 35–80 mm long and about 3 mm wide and also curve downwards. The labellum is 14–22 mm long, 7–10 mm wide, cream-coloured and projects forward with a dark red tip. The side of the labellum have thin, red, erect teeth up to 2.5 mm long, its tip curves downward and there are four rows of red calli along its centre. Flowering occurs from late September to early November.[2][3][4]

Taxonomy and naming

Caladenia uliginosa was first described in 1984 by

Frankland and the description was published in Nuytsia.[5] In 2001, Stephen Hopper and Andrew Phillip Brown described three subspecies, including subspecies uliginosa and the description was also published in Nuytsia.[1] The specific epithet (uliginosa) is a Latin word meaning "full of moisture", "wet" or "marshy"[6] referring to the swampy habitat where this orchid usually grows.[3]

Distribution and habitat

The dainty spider orchid is found between

biogeographic regions where it grows in moist forest and areas that are wet in winter.[2][3][4][7]

Conservation

Caladenia uliginosa subsp. uliginosa is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.[7]

References

  1. ^ a b c "Caladenia uliginosa subsp. uliginosa". APNI. Retrieved 24 March 2017.
  2. ^ .
  3. ^ .
  4. ^ .
  5. ^ "Caladenia uliginosa". APNI. Retrieved 24 March 2017.
  6. ^ Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 854.
  7. ^
    Department of Biodiversity, Conservation and Attractions
    .