Camptocarpus acuminatus

Camptocarpus acuminatus
Photograph of Camptocarpus acuminatus [1]
Conservation status
Vulnerable  (IUCN 3.1) [2]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Gentianales
Family:	Apocynaceae
Genus:	Camptocarpus
Species:	C. acuminatus
Binomial name
Camptocarpus acuminatus (Choux) Venter
Synonyms [3]
Tanulepis acuminataChoux

Camptocarpus acuminatus is a species of plant in the Apocynaceae family. It is endemic to the Madagascar. ^[4] Pierre Choux, ^[5] the botanist who first formally described the species, named it after the tapering (acuminatus in Latin) tips of its leaves, using the synonymous name Tanulepis acuminata. ^{[6] [7]}

Description

It is a woody climbing plant. The oval to disc-shaped leaves are 27–41 by 13–19 millimeters. Its leaves taper to a distinctive tip. Its petioles are 3–5 millimeters long. It has small flowers that are 2.4–2.5 millimeters long. Its 5 petals are fused at the base forming a tube. The flowers have a structure between the petals and the stamen called a corona. The base of the corona forms a ring that is fused with the base of the petals and the stamen. Its corona has 5 thread-like lobes that are radially aligned with the stamen. Its flowers have 5 stamen. ^[7]

Reproductive biology

The pollen of Camptocarpus acuminatus is shed as permanent tetrads. ^[8]

Distribution and habitat

It has been observed growing in humid forests at elevations of 600 to 1200 meters. ^[2]

References

1. Peter B. Phillipson (October 7, 2007). "Camptocarpus acuminatus (Choux) Venter". Tropicos. Tropicos.org. Missouri Botanical Garden. Retrieved July 20, 2023.
2. Faranirina, L. (2018). "Camptocarpus acuminatus". IUCN Red List of Threatened Species . 2018 e.T68002731A68008147. doi: 10.2305/IUCN.UK.2018-2.RLTS.T68002731A68008147.en . Retrieved 20 July 2023.
3. "Camptocarpus acuminatus (Choux) Venter". Catalogue of Life. Species 2000. n.d. Retrieved July 20, 2023.
4. "Camptocarpus acuminatus (Choux) Venter". Plants of the World Online. The Trustees of the Royal Botanic Gardens, Kew. n.d. Retrieved July 20, 2023.
5. "Pierre Choux". International Plant Names Index (IPNI). Royal Botanic Gardens, Kew; Harvard University Herbaria & Libraries; Australian National Botanic Gardens . Retrieved 2023-07-16.
6. Stearn, William (2004). Botanical Latin. Portland, Ore. Newton Abbot: Timber Press David & Charles. ISBN   978-0-88192-627-9.
7. Choux, M.P. (1914). "Le genre Tanulepis à Madagascar" [The genus Tanulepis in Madagascar]. Comptes Rendus Hebdomadaires des Séances de l'Académie des Sciences (in French). 158: 423–425.
8. Verhoeven, Rudolf L.; Venter, Johan T. (2001). "Pollen Morphology of the Periplocoideae, Secamonoideae, and Asclepiadoideae (Apocynaceae)". Annals of the Missouri Botanical Garden. 88 (4): 569–582. doi:10.2307/3298634. JSTOR   3298634.