Barclaya rotundifolia explained

Barclaya rotundifolia is a species of perennial aquatic plant native peninsular Malaysia, and Borneo.^[1]

Description

Vegetative characteristics

Barclaya rotundifolia is an aquatic plant with stoloniferous, short, and thick rhizomes. The stolons are 2 mm wide. The green, rounded leaves are 4-7 cm wide.^[2]

Generative characteristics

The nocturnal, 5 cm wide flowers are attached to 5-10 cm long peduncles. The flowers have 30-50 anthers. The gynoecium consists of 10-12 carpels. The globose, 1 cm wide fruit bears echinate, brown, ellipsoid, 2 mm long seeds.

Cytology

The diploid chromosome count is 2n= 36.

Reproduction

Vegetative reproduction

It can reproduce vegetatively through the formation of stolons.

Taxonomy

Publication

It was first described by Mitsuru Hotta in 1966.

Type specimen

The type specimen was collected by Mitsuru Hotta in Sungai Beangang, Bintulu, Sarawak, Malaysia, on the 23rd of November 1963.

Etymology

The specific epithet rotundifolia, from the Latin rotundus and folium, means round-leaved.^{[3] [4] [5]}

Conservation

It is classified as data deficient (DD).

Ecology

Habitat

It occurs in streams, and pools beneath tropical forest. It can grow in a submerged or emerged state.

Notes and References

1. 605263-1 . Barclaya rotundifolia M.Hotta . 12 January 2024.
2. Jacobsen, N., Ganapathy, H., Ipor, I., Jensen, K. R., Komala, T., Mangsor, K. N., ... & Ørgaard, M. (2022). "A reassessment of the genus Barclaya (Nymphaeaceae) including three new species." Nordic Journal of Botany, 2022(5), e03392.
3. Flora of Zambia: Species information: Tithonia rotundifolia. (n.d.). Retrieved January 12, 2024, from https://www.zambiaflora.com/speciesdata/species.php?species_id=160470
4. Burnham, R. J. & University of Michigan. (2016, September 4). Smilax rotundifolia | CLIMBERS. Retrieved January 12, 2024, from https://climbers.lsa.umich.edu/smilax-rotundifolia/
5. Selliera rotundifolia. (n.d.). New Zealand Plant Conservation Network. Retrieved January 12, 2024, from https://www.nzpcn.org.nz/flora/species/selliera-rotundifolia/