Panicum pilgeri Mez 1904
Authors/Creators
Description
29. Panicum pilgeri Mez (1904: 146). Type:— NIGERIA. Nupe, C. Barter 1377 (holotype, B [10_0168708]!, isotypes, K [000256820]!, US [US 80915]!, fragment ex B, S [G-4499]!, W [0000209]!). Fig. 26
Panicum lasiopodum Stapf (1905: 105). Type:— GUINEA. Kourossa, August 1900, M. Pobéguin 500 (lectotype (here designated), K [000256821]!, isolectotypes, P [03124678]!, P [03124675]!).
Perennial, caespitose, 30–110 cm long; culms erect, tufted, simple, branching at the lower nodes; internodes 6.0– 20 cm long, cylindrical, hollow, glabrous; nodes hirsute. Sheaths 5.0– 12 cm long, shorter than the internodes, striate, hirsute. Ligule membranous-ciliate, 1.0 mm long, with long hairs beneath at the base of the blade. Blades linear, 20–40 × 0.2–0.4 cm, with involute margins, hirsute to glabrous, narrow at the base, the apex attenuate. Inflorescence terminal, a contracted, long exserted oblong panicle, 12–25 × 6.0– 10 cm; peduncle 20–25 cm long, cylindrical, hirsute with long tuberculate hairs; pulvini pilose; main axis cylindrical, hispid; first-order branches alternate to opposite, divergent to appressed; axis of the branches hispid; spikelets solitary or paired on pedicels 2.0–8.0 mm long, ciliate, with whitish hairs up to 2.0 mm long. Spikelets ovoid, 2.5–2.6(–3.0) × 1.2 mm, glabrous or occasionally hispid, with long whitish hairs, greenish and tinged with purple; lower glume ovate, 2.0– 2.2 mm long, 3/4 to 4/5 the length of the spikelet, membranous, 3-nerved, mucronate or awned, awn, when present, up to 1.0 mm long, scabrous; upper glume as long as the spikelet, membranous, 5-nerved, acuminate or awned, awn up to 1.0 mm long, scabrous; lower lemma glumiform, 5-nerved, acuminate; lower palea elliptic, 2.0 ×1.0 mm, hyaline, glabrous; lower flower staminate; upper anthecium ovoid, 1.5–1.8 × 0.7 mm, shorter than the upper glume, pale, glabrous, indurate, shiny. Caryopsis not seen.
Distribution and habitat: —Mostly restricted to West tropical Africa, occasionally present in the Democratic Republic of the Congo and Mozambique; it grows in damp or swampy grassland and marshy places, at 300–1500 m.
Note: — This species is distinguished by its hirsute peduncles, axis and branches of the inflorescence hispid, and pedicels ciliate, with whitish hairs up to 2.0 mm long.
Representative specimens: — BURKINA FASO. Bobodioulasso, vers Sikasso, 16 September 1958, Adam 15083 (K, P). CAMEROON. Km 105 route Yacunde-Bafia, 25 August 1966, Letouzet 7683 (P). DEMOCRATIC REPUBLIC OF THE CONGO. Tukpwo, savane, 10 September 1954, Gerard 1725 (BR); Tupwo, 3 June 1960, Gerard 4650 (BR). GABON. Réserve de la Lopé, Chantier Mitendi, Sosef et al. 563 (MO, P). GAMBIA. South of Kartung, 19 October 1970, Rains 8 (K). GUINEA. Nzérékoré, Nimba Mountains, near Sempéré, 2 December 2006, Jongkind et al. 7444 (BR, MO, P); Macenta a Kérowané, 7 November 1949, Adam 6878 (P); Nimba Mountains, Savannah between Zougué River valley and Zié River valley, 5 October 2011, Bilivogui et al. 60 (MO, P). IVORY COAST. Wango Fitini, 15 September 1980, Fournier 1028 (P); savanne entre Toumodi et Yamousookro, 6 October 1961, Adjanohoun 328 A (K, US); Bouake, 15 October 1988, Poilecot 2523 (G); Oumé, 25 June 1990, Poilecot 3161 (G); N’Korhogo, 11 October 1965, Boudet 3123 (P); Réserve de Bouna, Kokpin, 19 June 1968, Assi 10235 (G); ca. 4 km E of Browo, ca. 50 km E of Bouaké, 29 April 1963, de Wilde 941 (BR); Mankono, 2 July 1910, Chevalier 21981 (BR). MALI. Sikasso, July 1965, Demange 2924 (P). MOZAMBIQUE. Lake Chilwa, Mesanhelas, 11 May 1971, Trevor-Jones UG3 (K). NIGERIA. Takum-Belli road, 10 August 1966, without collector (P, ex herb Kew 1720); Kwara State, Borgu Game Reserve, 9 August 1972, Wit & Oguntayo 2295 (K, P). SIERRA LEONE. Bumban, 28 November 1965, Morton 2902 (BR, K, P). TCHAD. Békao, 29 July 1962, Mosnier 1067 (P).
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Linked records
Additional details
Identifiers
Related works
- Cites
- Figure: 10.5281/zenodo.18423932 (DOI)
- Is part of
- Journal article: 10.11646/phytotaxa.727.1.1 (DOI)
- Journal article: http://zenodo.org/record/18423836 (URL)
- Journal article: http://publication.plazi.org/id/FFF3FFF9AC18656A9B4D3E40FF8AFF90 (URL)
- Is source of
- https://biodiversitypmc.sibils.org/collections/plazi/03CA8781AC2565579BC53EDEFD3DFA7C (URL)
Biodiversity
- Collection code
- A, K , BR , BR, K, P , BR, MO, P , C, B, K, S, W , E, BR , G , K , K, P , M , MALI, P , MO, P , P , P, K
- Material sample ID
- UG3
- Event date
- 1910-07-02 , 1949-11-07 , 1954-09-10 , 1958-09-16 , 1960-06-03 , 1961-10-06 , 1962-07-29 , 1963-04-29 , 1965-10-11 , 1965-11-28 , 1966-08-10 , 1966-08-25 , 1968-06-19 , 1970-10-19 , 1971-05-11 , 1980-09-15 , 1988-10-15 , 1990-06-25 , 2006-12-02 , 2011-10-05
- Verbatim event date
- 1910-07-02 , 1949-11-07 , 1954-09-10 , 1958-09-16 , 1960-06-03 , 1961-10-06 , 1962-07-29 , 1963-04-29 , 1965-10-11 , 1965-11-28 , 1966-08-10/1972-08-09 , 1966-08-25 , 1968-06-19 , 1970-10-19 , 1971-05-11 , 1980-09-15 , 1988-10-15 , 1990-06-25 , 2006-12-02 , 2011-10-05
- Scientific name authorship
- Mez
- Kingdom
- Plantae
- Phylum
- Tracheophyta
- Order
- Poales
- Family
- Poaceae
- Genus
- Panicum
- Species
- pilgeri
- Taxon rank
- species
- Type status
- holotype , lectotype
- Taxonomic concept label
- Panicum pilgeri Mez, 1904 sec. Zuloaga, 2025
References
- Mez, C. (1904) Gramineae africanae. V. Botanische Jahrbucher fur Systematik, Pflanzengeschichte und Pflanzengeographie 34: 131-148.
- Stapf, O. (1905) Graminees nouvelles de la Guinee frangaise recoltees par M. Pobeguin. Journal de Botanique 19: 98-108.