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Digitaria debilis Desf. Willd. [family GRAMINEAE]

Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora Zambesiaca
Resource Type
Reference Sources
Entry From
FZ, Vol 10, Part 3, (1989) Author: W. D. Clayton
Names
Panicum reimarioides Andersson [family GRAMINEAE], in Peters, Naturwiss. Reise Mossamb., Bot. 2: 547 (1864). Type: Mozambique, “Zambese”, xi–xii, Peters s.n. (B, holotype).
Panicum debile var. reimarioides Andersson Durand & Schinz [family GRAMINEAE], in Consp. Fl. Afr. 5: 746 (1894). Type as above.
Digitaria debilis var. gigantea Rendle [family GRAMINEAE], in Cat. Afr. Pl. Welw. 2: 163 (1899). — Henrard, Monogr. Digit.: 168 (1950). Type from Angola.
Digitaria bangweolensis Pilg. [family GRAMINEAE], in Fries, Wiss. Ergebn. Schwed. Rhod.-Kongo-Exped. 1: 199 (1915). Type: Zambia, Bangweulu near Kamindas, 1150 m., 11.xi.1911, Fries 944 (B, holotype).
Digitaria debilis var. reimarioides Anderss. Henr. [family GRAMINEAE], Monogr. Digit.: 168 (1950). Type as for Panicum reimarioides.
Digitaria debilis Desf. Willd. [family GRAMINEAE], Enum. Pl. Hort. Reg. Bot. Berol.: 91 (1809).–Stapf in F.C. 7: 377 (1898). — Rendle, Cat. Afr. Pl. Welw. 2: 163 (1899). — Stapf in F.T.A. 9: 464 (1919). — Stent in Bothalia 1: 269 (1924). — Robyns, F.sp. Cong. Digit.: 41 (1931); in Fl. Agrost. Congo Belge 2: 43 (1934). — Henrard, Monogr. Digit.: 165 (1950). — Maire in Fl. Afr. Nord 1: 302, fig. 169 (1952). — Sturgeon in Rhod. Agric. Journ. 50: 286 (1953). — Chippindall in Meredith, Grasses & Pastures of S. Afr.: 396 (1955). — Andrews, Fl. Pl. Sudan 3: 433 (1956). — Jackson & Wiehe, Annot. Check-list Nyasal. Grass.: 35 (1958). — Van der Veken in Bull. Jard. Bot. Brux. 32: 125 (1962). — Napper, Grass. Tangan.: 77 (1965). — Launert in Merxm., Prodr. Fl. SW. Afr. 160: 63 (1970). — Simon in Kirkia 8: 31, 65 (1971). — Clayton in F.W.T.A. ed. 2, 3: 454 (1972); in Kew Bull. 29: 520 (1974). — Rose Innes, Mann. Ghana Grass.: 134 (1977). — Bennett in Kirkia 11: 234 (1980). — Clayton in F.T.EA., Gramineae: 637 (1982). TAB. 40, fig. 29. Type from S. Europe.
Panicum debile Desf. [family GRAMINEAE], Fl. Atlant. 1: 59 (1798). — Steudel, Syn. Pl;. Glum. 1: 41 (1853). — Durand & Schinz in Consp. Fl. Afr. 5: 746 (1894). Type as above.
Digitaria dicipiens Fig. & De Not. [family GRAMINEAE], Agrost. Aegypt. Fragm. 2: 43, t. 24 (1853). Type from N. Africa.
Digitaria variabilis Fig. & De Not. [family GRAMINEAE], Agrost. Aegypt. Fragn 2: 41, t. 23 (1853). Type from N. Africa.
Information
A loosely caespitose or solitary growing perennial, sometimes stoloniferous. Culms 10–40 cm., erect or creeping at the base, glabrous, nodes dark and glabrous. Leaf sheaths hairy. Ligule up to 2 mm. long, blunt or truncate. Leaf laminae 3–7 × 0.2–0.4 mm., linear, flat, hairy on both surfaces, margins scabrous, crisped. Inflorescence composed of 3–14 racemes, 5–15 cm. long, few together or solitary along a short common axis. Rhachis triquetrous, unwinged, up to 0.3 mm. broad, smooth with scabrous margins. Pedicels 2-nate, 0.3–2.5 mm. long, triangular to compressed, scabrous, somewhat broadened at the apex. Spikelets 2.7–3.5 mm. long, lanceolate, acuminate. Inferior glume at the base of the callus, remote from the superior glume, short, truncate, nerveless, hyaline. Superior glume as long as the spikelet, much longer than the superior lemma, lanceolate, acuminate, 7-nerved, pale green, appressed hair), hairs fine, slightly undulating with an irregularly recurved or circinate apex. Inferior lemma somewhat shorter than the spikelet, lanceolate, acuminate, 7-nerved, pale green, appressed hairy. Superior lemma much shorter than the spikelet, lanceolate, acuminate, yellow green to bluish green.
Habitat
River banks, dambos, roadsides and damp places in general.
Distribution
Mozambique Z Quelimane, 14.x.1965, Mogg 32275 (SRGH).Mozambique T Zambezi R., 16.x.1965, Neves Rosa 25 (LMA).Mozambique MS Gorongoza, 60 m., 15.xi.1963, Torre & Paiva 9236 (COI; LISC; SRGH).Mozambique M Incomati R., 30.v.1951, Myre 1088 (LISC; SRGH).Botswana N Lake Ngami, Toteng (Toten), 18.iii.1965, Wild & Drummond 7144 (BM; SRGH).Zambia B Mongu, 10.vii.1962, Robinson 5418 (K; PRE; SRGH).Zimbabwe N Mensa Pan, 15 km. ESE. of Chirundu Bridge, 460 m., 30.i.1958, Drummond 5383 (BR; COI; K; LISC; P; PRE; SRGH).Malawi N Katoto, 5 km. W. of Mzuzu, 1500 m., 13.iii.1974, Pawek 8216 (K; PRE; SRGH).Mozambique N 4 km. from Montepuez on Namuno Rd., 430 m., 25.xii.1963, Torre & Paiva 9669 (COI; LISC; PRE).Zambia N Ndundu, 1900 m., 28.ii.1959, McCallum-Webster A183c (K; SRGH).Zambia W 24 km. from Mwinilunga on Matonchi Rd., 1500 m., 21.xii.1969, Simon & Williamson 1937 (BM; GENT; K; P; PRE; SRGH).Zambia E Nsefu Game Camp, 750 m., 15.x.1958, Robson 134 (BM; BR; K; LISC; PRE; SRGH).Zambia S Livingstone, 12.ii.1959, McCallum-Webster Z13 (K).Zimbabwe W Irisvale Ranch, Bala-Bala, 1100 m., xii.1961, Poultney 61 (SRGH).Zimbabwe C Gweru (Gwelo) Teachers College, 15.ii.1968, Biegel 2539 (BM; K; PRE; SRGH).Zimbabwe E Sibu, 13 km. W. of Chimanimani (Melsetter), 11.xii.1952, Crook 420 (K; SRGH).Zimbabwe S Muzero Farm, near Nemamwa School, 2.ii.1971, Chiparawasha 331 (GENT; K; PRE; SRGH; WAG).Malawi C Kasungu Nat. Park, near Angombe Hill, 1080 m., 30.ix.1970, Hall-Martin 1720 (K; PRE; SRGH).Malawi S Litchenya Forestry Hut, 1900 m., 29.iii.1960, Phipps 2785 (COI; K; PRE; SRGH).
Distribution (external)
Africa
western Mediterranean
Madagascar
Digitaria debilis Desf. Willd. [family GRAMINEAE]
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