Compilation
Phaseolus schlechteri
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Name
Identification
Isotype of Phaseolus schlechteri Harms [family LEGUMINOSAE ] Verified by Verdcourt,B., Isotype of Dolichos schlechteri Harms ex BurttDavy [family LEGUMINOSAE ] Verified by Verdcourt,B., Decorsea schlechteri (Harms) Verdc. [family LEGUMINOSAE ] (stored under name); Verified by Verdcourt,B.,
Related name
- Dolichos schlechteri
- Decorsea schlechteri
- Phaseolus schlechteri
Flora
Entry for Decorsea schlechteri Harms Verdc. [family LEGUMINOSAE]
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora Zambesiaca
Resource Type
Reference Sources
Entry From
FZ, Vol 3, Part 5, (2001) Author: B. Mackinder, R. Pasquet, R. Polhill and B. Verdcourt
Names
Decorsea schlechteri Harms Verdc. [family LEGUMINOSAE], in Kew Bull. 24: 445, fig. 9 (1970); in F.T.E.A., Leguminosae, Pap.: 611, fig. 94 (1971). —Drummond in Kirkia 8: 219 (1972). —Gonçalves in Garcia de Orta, Sér. Bot. 5: 77 (1982). —Lock, Leg. Afr. Check-list: 391 (1989). TAB. 3.5.35. Type: Mozambique, Ressano Garcia*, Schlechter 11826 (B†, holotype; K, isotype).
Phaseolus schlechteri Harms [family LEGUMINOSAE], in Bot. Jahrb. Syst. 30: 91 (1901).
Dolichos schlechteri Harms ex Burtt Davy [family LEGUMINOSAE], Fl. Pl. Ferns Transvaal, part 2: 423 (1932). —Jacobsen in Kirkia 9: 160 (1973). Type allegedly from South Africa, but see footnote and note at end of the species.
Information
Perennial twining herb. Stems rather slender, somewhat ridged, mostly glabrous, up to c. 3 m long; flowering shoots often leafless. Leaflets 2.2–7.5 × 0.8–3.7 cm, the terminal leaflet rhombic-lanceolate to triangular-ovate, the lateral leaflets similar but markedly asymmetrical, falcate; all leaflets narrowed to a rounded but mucronulate apex, or slightly emarginate, more rarely sharply acute, rounded at the base, with sparse short bristly hairs scattered on upper and lower surfaces and the margins, or glabrescent or more rarely densely pubescent, venation reticulate and prominent on both surfaces; petiole 2–6.5 cm long; rhachis 0.4–1.6 cm long; petiolules c. 2.5 mm long; stipules c. 3 mm long, narrowly ovate-elliptic. Inflorescence axis often much wrinkled, 0.4–1.5 cm long, often 2–3-branched or sometimes peduncle 3–4 cm long; pedicels 0.6–1.4 cm long; bracts and bracteoles minute, c. 1 mm long, ovate, ribbed, ciliate. Calyx tube 3–4 mm long, glabrous; lobes c. 2 mm long, deltate, ciliate, the upper pair united into a low rounded lip. Standard blue, greenish-yellow or mostly mauve, 1.5 × 1.8 cm; wings violet or pink; keel mostly pale. Hairs in a ring around stigma, clearly branched. Pods 7.5–12.5 cm × 5 mm, linear, curved at the tip, glabrous. Seeds dark blackish-red or brown mottled black, 5.5–8 × 3–4 × 2.5–3.2 mm, somewhat keeled along the distil margin, hollowed around the hilum.
Habitat
Hot, often low rainfall, areas, Kalahari Sand grasslands and scrub, and on stony slopes and hillsides, in various woodlands including mopane, Isoberlinia–Brachystegia boehmii–Combretum, Acacia–mopane and pure Combretum woodland, also in Grewia–Terminalia–Dichrostachys–Euclea, Pterocarpus–Commiphora, Dalbergiella–Julbernardia–Diospyros–Sterculia thicket and scrub
Altitude range
0–1200 m.
1200
0
Distribution
Malawi S Machinga Distr., Rivi Rivi Farm near Balaka, fl. 17.xii.1957, G. Jackson 2123 (K).Mozambique M Delagoa, fl. & fr. viii.1886, Bolus 1141 (BOL; K).Mozambique T Boroma (Boruma), Msusa R., fl. & fr. 25.vii.1950, Chase 2684 (K; SRGH).Mozambique MS entrance to Gorongosa Reserve, fl. 23.ix.1961, Methuen 238a & b (K).Mozambique Z Lugela Distr., Namagoa, fl. & fr. iv-v.1943, Faulkner PRE 275 (K; PRE).Zimbabwe S Beitbridge Distr., Thuli (Tuli) Controlled Hunting Area, fl. 20.iii.1973, Cleghorn 2773 (K; SRGH).Zimbabwe E Chipinga Distr., Dendy Camp, fl. 7.x.1961, Methuen 287 (K).Zimbabwe C Shurugwi Distr., c. 25 km south of Shurugwi (Selukwe) on Great Dyke, fl. 28.i.1973, Biegel 4187 (K; SRGH).Zimbabwe W Hwange National Park (Wankie Game Reserve), Mtoa road, fl. 18.ii.1956, Wild 4750 (K; SRGH).Mozambique N Macomia Distr., mouth of Messalo (Msalu) R., fl. & fr. 7.viii.1912, C.E.F. Allen 69 (K).Zimbabwe N Guruve Distr., near foot of Zambezi Escarpment, fl. & fr. 17.vii.1965, Müller 152 (K; SRGH).Zambia S Livingstone, fl. & fr. 1.vi.1960, Fanshawe 5718 (K; NDO).Botswana SE c. 71 km ESE of Letlhakane (Lothlekane), alongside Central Bamangwato quarantine fence, fl. 24.iii.1965, Wild & Drummond 7267 (K; SRGH).
Distribution (external)
South Africa (Northern Province, Mpumalanga and KwaZulu-Natal)
Notes
Burtt Davy, who cites the name as “Dolichos schlechteri Harms MS”, did not make a new combination since he obviously did not realise Harms had published the epithet in another genus. These two names must be treated as two different names based on the same gathering.There is at Kew a specimen (a duplicate from Berlin) Peter 47852 Exkursion S61 from Zimbabwe “Forest Wall bei Bulawayo(r)Pasipas” collected on 4.xii.1913 which is Decorsea galpinii (Burtt Davy) Verdc., a species otherwise unknown from Zimbabwe. The label also states “Lebend nach Göttingen geschicht”. I suspect this material was collected in the Transvaal, where Peter had been a few days previous to his arriving in Bulawayo. His collecting numbers around Harare (Salisbury) are in the 51000s; even Peter could not collect over 3000 plants in a few days. It differs widely from Decorsea schlechteri in having narrower leaflets, standard calli reduced to a thickened line joining the auricles, keel with a pocket on the right-hand side and the stigmatic hairs unbranched.