Schoenus neovillosus

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Schoenus neovillosus
S neovillosus habit TLE.jpg
Hairy veldrush
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Cyperaceae
Genus: Schoenus
Species:
S. neovillosus
Binomial name
Schoenus neovillosus
T.L.Elliott & Muasya
S neovillosus-map.pdf
Documented collection localities in South Africa
Synonyms [1]
  • Epischoenus villosus Levyns
  • non Schoenus villosus R.Br.

Schoenus neovillosus is a species of sedge endemic to the south-western mountains of the Western Cape Province of South Africa. [1]

Contents

Description

Schoenus neovillosus is one of the most hairy species of southern African Schoenus . [1] The spikelets and often the culms of this species are hairy, similar to Schoenus crinitus , Schoenus lucidus and also sometimes Schoenus gracillimus . [1]

The inflorescences of S. neovillosus generally are less congested, with a longer proximal rachis, inflorescence and primary inflorescence bracts compared to those of S. lucidus. [1] In addition, the spikelets of S. crinitus and S. gracillimus are more dispersed throughout the inflorescence, whereas the spikes of S. neovillosus form more overlapping clusters compared to the former two species. [1]

The form of the inflorescence of Schoenus selinae is similar to that of S. neovillosus; however, there is not hair on the inflorescence of S. selinae. [1] Another key difference is that S. neovillosus does not have the paper-like lateral extensions on its primary inflorescence bracts that are present in S. selinae. [1]

Specimens collected from the Kogelberg region tend to be hairier than those from other regions. [1]

Certain species of southern African Schoenus might form hybrids with each other, which partially explains the difficulties in identifying these species. [1] [2] At this time, it is not clear whether S. neovillosus forms hybrids with other southern Africa Schoenus species. [1]

Taxonomy

Schoenus neovillosus is a species in family Cyperaceae, tribe Schoeneae. [3] [4] [5] This tribe has other notable genera such as Costularia , Gahnia , Lepidosperma , Oreobolus and Tetraria . [4] Phylogenetic and morphological evidence suggests that the closest relative to S. neovillosus are species in the Epischoenus group of Schoenus. [1]

The genus Tetraria once included species from the southern African Schoenus; however, we now know that the two groups are evolutionary distinct based on morphological and molecular differences. [6]

To ensure that Schoenus is monophyletic (i.e. the genus only has closely related species), several species of the southern African Tetraria and Epischoenus were transferred into Schoenus. [6] The main distinguishing traits between Tetraria and Schoenus in the field are the lack of stem leaves and absence of reticulate sheaths at the bases of the flowering stems in Schoenus. [6]

Distribution and habitat

The known distribution of Schoenus neovillosus ranges from the Riviersonderend area in the east to the Cape Peninsula in the west — generally along the southwestern mountains of the Western Cape Province. [1] This species mostly prefers moist sites, and it has been collected from near sea level to over 1800 m. [1]

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<i>Schoenus graminifolius</i> Species of grass-like plant

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<i>Schoenus ligulatus</i> Species of grass-like plant

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<i>Schoenus crassus</i> Species of grass-like plant

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<i>Schoenus riparius</i> Species of grass-like plant

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<i>Schoenus dregeanus</i> Species of grass-like plant

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<i>Schoenus adnatus</i> Species of grass-like plant

Schoenus adnatus is a species of sedge endemic to mountainous locations in southern regions of South Africa.

<i>Schoenus complanatus</i> Species of grass-like plant

Schoenus complanatus is a species of sedge endemic to the western mountains of the Western Cape Province of South Africa.

<i>Schoenus quadrangularis</i> Species of grass-like plant

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<i>Schoenus schonlandii</i> Species of grass-like plant

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<i>Schoenus gracillimus</i> Species of grass-like plant

Schoenus gracillimus is a species of sedge endemic to the Western Cape Province of South Africa.

<i>Schoenus lucidus</i> Species of grass-like plant

Schoenus lucidus is a species of sedge endemic to the western mountains of the Western Cape Province of South Africa.

<i>Schoenus brunnescens</i> Species of grass-like plant

Schoenus brunnescens is a species of sedge endemic to the Western Cape Province of South Africa.

<i>Schoenus inconspicuus</i> Species of grass-like plant

Schoenus inconspicuus is a species of sedge endemic to south-western areas of the Western Cape Province of South Africa.

<i>Schoenus crinitus</i> Species of grass-like plant

Schoenus crinitus is a species of sedge endemic to the Worcester region of the Western Cape Province of South Africa.

<i>Schoenus rigidus</i> Species of grass-like plant

Schoenus rigidus is a species of sedge endemic to locations near central regions of the southern coast of South Africa.

<i>Schoenus selinae</i> Species of grass-like plant

Schoenus selinae is a species of sedge endemic to the Western Cape Province and western areas of the Eastern Cape Province of South Africa.

References

  1. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Elliott, T.L.; Muasya, A.M. (2020). "A taxonomic revision of the Epischoenus group of Schoenus (Cyperaceae, tribe Schoeneae)". South African Journal of Botany. 135: 296–316. doi: 10.1016/j.sajb.2020.08.029 .
  2. ↑ Levyns, M. (1947). "Tetraria and related genera, with special reference to the flora of the Cape Peninsula". Journal of South African Botany. 13: 73–93.
  3. ↑ Elliott, T.L.; Barrett, R.L.; Muasya, A.M. (2019). "A taxonomic revision of Schoenus cuspidatus and allies (Cyperaceae, tribe Schoeneae)—Part 1". South African Journal of Botany. 121: 519–535. doi: 10.1016/j.sajb.2018.11.021 .
  4. 1 2 Viljoen, J.-A.; Muasya, A.M.; Barrett, R.L.; Bruhl, J.J.; Gibbs, A.K.; Slingsby, J.A.; Wilson, K. L.; Verboom, G.A. (2013). "Radiation and repeated transoceanic dispersal of Schoeneae (Cyperaceae) through the southern hemisphere". American Journal of Botany. 100 (12): 2494–2508. doi:10.3732/ajb.1300105.
  5. ↑ Larridon, I.; Bauters, K.; Semmouri, I.; Viljoen, J.-A.; Prychid, C.J.; Muasya, A.M.; Bruhl, J.J.; Wilson, K.L.; Senterre, B.; Goetghebeur, P. (2018). "Molecular phylogenetics of the genus Costularia (Schoeneae, Cyperaceae) reveals multiple distinct evolutionary lineages". Molecular Phylogenetics and Evolution. 126: 196–209. doi:10.1016/j.ympev.2018.04.016.
  6. 1 2 3 Elliott, T.L.; Muasya, A.M. (2017). "Taxonomic realignment in the southern African Tetraria (Cyperaceae, tribe Schoeneae; Schoenus clade)". South African Journal of Botany. 112: 354–360. doi: 10.1016/j.sajb.2017.06.011 .
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