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Published September 29, 2025 | Version v1
Taxonomic treatment Open

Pycreus fallaciosus Cherm.

Creators

  • 1. Meise Botanic Garden, Nieuwelaan 38, B- 1860 Meise (Belgium) filip. verloove @ plantentuinmeise. be (corresponding author)
  • 2. Directorate of Hortobágy National Park H- 4024, Sumen utca 2. Debrecen (Hungary)

Description

Pycreus fallaciosus Cherm.

Archives de Botanique, Mémoires 7 (4): 7 (Chermezon 1936).

ACCEPTED NAME (POWO 2025). — Cyperus flavescens subsp. fallaciosus (Cherm.) Lye, Sedges & Rushes, East African Natural History Society 3: 2 (Haines & Lye 1983).

LECTOTYPE. — Senegal • Bord du Marigot de Mansadella (N. de Dienoudiella); 29.V.1934; Herbier du Sénégal, voyage 1933-1934; J.Trochain 3545; lectotype (here designated): P[P00573042] • Same data; Isolectotype: BR[BR0000013495794].

REMARKS

Chermezon (1936) cited two Trochain collections in the protologue of Pycreus fallaciosus, both from [bord du] Marigot de Mansadella (N. de Dienoudiella) [Senegal], May 1934, Trochain 3538 and 3545. Both collections are kept in P, where the Trochain herbarium and types are located (Stafleu & Cowan 1976 -1988). Duplicates are deposited in BR. Trochain 3545 represents a complete specimen with roots, flowers and fruits, whereas Trochain 3538 only bears three stems (no roots), two of them in flower/fruit, a third with a young inflorescence that hardly emerges from the upper leaf sheath. Both collections were seen by J. Raynal in June 1970 who included this species in P. flavescens (L.) P. Beauv. ex Reich.

Trochain 3545 is the most representative out of the two syntypes and it was already annotated (informally) as lectotype for this name, possibly by J. Raynal. It is here designated as lectotype.

Notes

Published as part of Verloove, Filip & Mesterházy, Attila, 2025, Lectotypification of names in the genus Cyperus s. l. (Cyperaceae) occurring in tropical West Africa, pp. 275-284 in Adansonia (3) (3) 47 (14) on page 283, DOI: 10.5252/adansonia2025v47a14, http://zenodo.org/record/17223783

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Linked records

Additional details

Identifiers

URL
http://treatment.plazi.org/id/AF3987E0182BFFA79242FBBE5B6AD2D6

Is part of
Journal article: 10.5252/adansonia2025v47a14 (DOI)
Journal article: http://zenodo.org/record/17223783 (URL)
Journal article: http://publication.plazi.org/id/5300FF981821FFAD9374FFCB5A6DD53D (URL)
Is source of
https://biodiversitypmc.sibils.org/collections/plazi/AF3987E0182BFFA79242FBBE5B6AD2D6 (URL)
https://www.gbif.org/species/302301291 (URL)
https://www.checklistbank.org/dataset/312481/taxon/AF3987E0182BFFA79242FBBE5B6AD2D6.taxon (URL)

Biodiversity

Collection code
P
Material sample ID
BR0000013495794 , P00573042
Event date
1934-05-29
Verbatim event date
1934-05-29
Scientific name authorship
Cherm.
Kingdom
Plantae
Phylum
Tracheophyta
Order
Poales
Family
Cyperaceae
Genus
Pycreus
Species
fallaciosus
Taxon rank
species
Type status
isolectotype , lectotype

References

  • CHERMEZON H. 1936. - Contribution a la flore cyperologique du Senegal. Cyperacees recoltees par M. Trochain. Archives de Botanique, Memoires 7 (4): 1-32.
  • POWO 2025. - Plants of the World Online. Royal Botanic Gardens Kew. https://powo.science.kew.org/(accessed: 15 January 2025).
  • HAINES R. W. & LYE K. A. 1983. - The sedges and rushes of East-Africa. East African Natural History Society 3: 1-404.
  • STAFLEU F. A. & COWAN R. S. 1976 - 1988. - Taxonomic Literature: a Selective Guide to Botanical Publications and Collections with Dates, Commentaries and Types. Ed. 2. Bohn, Scheltema & Holkema, Utrecht. https://www.biodiversitylibrary.org/bibliography/48631