Tyleropappus
| Tyleropappus | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Tyleropappus Greenm. |
| Species: | T. dichotomus
|
| Binomial name | |
| Tyleropappus dichotomus Greenm. ex Gleason
| |
Tyleropappus is a genus of flowering plants belonging to the family Asteraceae. It just contains one species, Tyleropappus dichotomus Greenm. ex Gleason [1]
Its native range is Venezuela.[1][2] It is found in high altitude mountain regions.[3]
Description
[edit]They are dichotomously (forking into two equal branches) branched sub-shrubs, 0.4–1 m (1 ft 4 in – 3 ft 3 in) tall with leaves clustered towards stem apex. The stems are hirtellous (minutely hirsute) and densely covered with leaf scars. The leaves are simple, spirally inserted, sessile or short petiolate (have small leaf stalks). The leaf blades are linear to lanceolate, stiff, 1 veined to weakly pinnately veined. The upper surface of the leaf is glabrous, with the lower surface punctate glandular. It has entire margins which are revolute. The flowers are terminal (at the ends of branches).[2]
Taxonomy
[edit]The genus name of Tyleropappus is in honour of Sidney Frederick Tyler (1907–1993), American banker and cattle rancher. He was also a supporter of charitable organizations.[4] Umberto Quattrocchi has a different name reason; Greek tyleros meaning callous and pappos meaning fluff, downy appendage.[5] The Latin specific epithet of dichotomus means split in two; from dichotomous.[6] Both the genus and the sole species were first described and published in Bull. Torrey Bot. Club Vol.58 on page 486 in 1931.[1]
It was once thought to be a synonym of Calea L..[7]
References
[edit]- ^ a b c "Tyleropappus Greenm. | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 1 January 2022.
- ^ a b Paul E. Berry, Julian Alfred Steyermark, Bruce K. Holst and Kay Yatskievych Flora of the Venezuelan Guayana: Araliaceae-Cactaceae (1995), p. 178, at Google Books
- ^ François Vuilleumier and Maximina Monasterio High Altitude Tropical Biogeography (1986), p. 324, at Google Books
- ^ Burkhardt, Lotte (2018). Verzeichnis eponymischer Pflanzennamen – Erweiterte Edition [Index of Eponymic Plant Names – Extended Edition] (pdf) (in German). Berlin: Botanic Garden and Botanical Museum, Freie Universität Berlin. doi:10.3372/epolist2018. ISBN 978-3-946292-26-5. Retrieved 1 January 2021.
- ^ Quattrocchi, Umberto (2019) [2000]. CRC World Dictionary of Plant Names, Volume IV, R–Z. Boca Raton, Florida: CRC Press. p. 2749. ISBN 978-0-367-44750-2.
- ^ Harrison, Lorraine (2012). RHS Latin for Gardeners. United Kingdom: Mitchell Beazley. ISBN 184533731X.
- ^ Joachim W. Kadereit and Charles Jeffrey (Editors) The families and genera of vascular plants: Flowering Plants. Eudicots: Asterales (2007), p. 635, at Google Books