Species of perennial aquatic plant
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Barclaya hirta is a species of aquatic plant native to Sumatra, Indonesia. It is disputed. By some, it is treated as synonym of "Barclaya motleyi", but by others it is regarded as a separate species.
Description.
Vegetative characteristics.
"Barclaya hirta" is an aquatic plant with villous, stoloniferous, slim, 2–5 cm long, and 0.5–1 cm wide rhizomes. The 10-15 petiolate, rounded to ovate leaves with an obtuse apex are 5–10 cm long, and 4–8 cm wide. The petioles are 5–20 cm long. The leaves exhibit brownish pubescence.
Generative characteristics.
The nocturnal, 4 cm wide flower is attached to a 5–20 cm long peduncle. The outer tepals are 2.5–3 cm long, and the 6-8 inner tepals are 2 cm long. The androecium consists of 30-40 stamens. The stigmatic cup has 7-9 carpellary appendages. Fruits were not observed.
Cytology.
The diploid chromosome count is 2n = 36.
Reproduction.
Vegetative reproduction.
It can reproduce vegetatively through the formation of stolons.
Generative reproduction.
The flowers are likely nocturnal.
Taxonomy.
Publication.
It was first described as "Nymphaea hirta" Kurz ex Teijsm. &amp; Binn. by Wilhelm Sulpiz Kurz but validly published by Johannes Elias Teijsmann and Simon Binnendijk in 1864. Later, it was transferred to the genus "Barclaya" Wall. as "Barclaya hirta" (Kurz ex Teijsm. &amp; Binn.) Miq. by Friedrich Anton Wilhelm Miquel in 1870.
Type specimen.
The type specimen was collected by Johannes Elias Teijsmann in Sumatra, Indonesia.
Classification status.
The status of this species is disputed. It is rejected by some, but accepted by others.
Etymology.
The specific epithet "hirta", from the Latin "hirtus", means hairy.
Conservation.
It is classified as data deficient (DD) under the IUCN criteria.
Ecology.
Habitat.
It occurs in small streams.
References.
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