Cucumis humofructus Stent

Species

Angiosperms > Cucurbitales > Cucurbitaceae > Cucumis

Characteristics

Annual prostrate herb. Stems one to few from the apex of the rootstock, trailing, often rooting at the nodes, firm, stout, angular, pilose, up to 2 m, rarely 3 m, long. Leaves orbicular or broadly ovate-pentagonal in outline, obtuse to apiculate or subacute, cordate at the base, undivided, angular or faintly lobed, 5-15 cm in diam.; the margin minutely ciliate and callous-toothed, both surfaces scabrid with sharp bulbous-based hairs; main veins 5; petioles firm, terete, hispid, up to 6 cm long. Tendrils short, slender. Flowers in contracted racemes or fascicles, usually a few male ones together with a female one; male ones: pedicels slender, pilose, articulate below the receptacle, 6-20 mm long; receptacle about 5 mm long, pilose, 10-nerved; sepals 2-3 mm long, linear-subulate, obtuse, thinly pilose-hirsute; petals pale yellow, 2-7 mm long, papillose with short gland-tipped hairs on both sides, intermingled with pilose hairs on the veins outside, mid-vein protruding as a gland-like mucro; female ones: pedicel very short and stout, after pollination bending downwards, lengthening considerably and thickening into a long terete root-like organ reaching a length of 10-25 cm and a diam. of 3-5 mm, carrying the ovary into the soil; calyx and corolla as in the male, ovary ellipsoid or narrowly ovoid, contracted into a narrow neck at the apex, densely covered with retrorse adpressed setae which act as barbs when the peduncle grows into the soil. Fruit geocarpic, subglobose, depressed globose or ellipsoid to ovoid, whitish, yellowish or pale greenish, glabrous, finely rugose, 5-9 cm long and in diam. Seeds white, much compressed, 16-20 mm long, 7-9 mm broad, embedded in a subhyaline jelly-like pulp.
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Rampant annual trailing herb to 2–7 m.; stems long-hairy, especially in younger parts, with the hairs fine and spreading.. Leaf-blade broadly ovate or reniform in outline, subcordate-truncate, rounded above, somewhat stiff-hairy especially on the nerves beneath, faintly and obscurely sinuate-toothed, 65–170 mm. long, 77–220 mm. broad, sometimes obscurely 3-lobed with rounded lobes; petiole 25–115 mm. long, ± finely spreading-hairy.. Tendrils weak, fascicled 2–5 at the nodes.. Male flowers 1–3 or more, on 7–9 mm. long pedicels; receptacle-tube ± 2.5 mm. long; lobes filiform, 3 mm. long; petals yellow, ± 4.5 mm. long and 2 mm. broad, united below.. Female flowers subsessile; ovary hairy, ovoid, 3 mm. long, 1 mm. across; receptacle-tube 3 mm. long; stalk of ovary rapidly elongating after flowering to 150–230 mm. long, burying the young fruit in the ground.. Fruit subterranean, subglobose, 39–41 mm. long, 34–53 mm. across, pale biscuit-coloured with rough markings; pulp brownish.. Seeds whitish, compressed, elliptic in outline, 15 × 6 × 2 mm.
A herb. It lies along the ground. It grows each year from seed. The stems can be 2.5 m long. They produce roots at the nodes. The leaves have long leaf stalks. The leaves are heart shaped with small lobes and fine teeth along the edge. The flowers are pale yellow. They occur singly in the axils of leaves. The grow on long stalks into the soil. The fruit develop and ripen in the soil. They are pale green or yellow. The seeds are narrowly oval and white.
Female flowers solitary, co-axillary with male opening before male towards apex of shoots; pedicel stout, 3·5–11 mm. long, rapidly elongating after flowering and burying the developing fruit; ovary 3–3·5 × 1 mm., ovoid-rostrate, acute, densely retrorsely tomentose; perianth similar to that of male flower, quickly deciduous.
Leaf-lamina 3–11(17) × 3–13(22) cm., ovate or broadly ovate to suborbicular in outline, weakly cordate, more or less scabrid-setulose above and on veins beneath, sinuate-denticulate, very shortly palmately 5-lobed or subpentagonal, lobes broadly ovate or broadly triangular, rounded, sometimes shortly acuminate, apiculate.
Prostrate annual herb. Tendrils 2-8 at each node. Pedicel of ovary rapidly elongating and burying developing fruit. Fruit maturing underground, subglobose, pale greenish, yellow or whitish, rugose; fruit stalk 100-250 mm long. Flowers yellow or pale yellow.
male flowers 2–12 in small fascicles; pedicels 5–11(10) mm. long. Receptacle-tube 1·5–3·5 mm. long, lobes 0·7–3 mm. long. Petals 2–7 mm. long, yellow or pale yellow.
Fruit subterranean, c. 4 × 3·5–5· cm., subglobose, pale greenish, yellow or whitish, rugose; fruit-stalk 10–25 cm. long.
Annual herb; stems prostrate, to 3 m. or more, crispate-setulose to almost glabrous, rooting at the nodes.
Seeds 15–20 × 7–9 × 2–3 mm., elliptic in outline, compressed, whitish.
Petiole 1·5–5(11·5) cm. long, crispate-setulose.
Tendrils rather weak, 2–8 at each node.
Flowers monoecious.
Life form annual
Growth form herb
Growth support climber
Foliage retention deciduous
Sexuality monoecy
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Environment

It is a subtropical plant. It grows in sandy soils. It grows between 800-1,050 m above sea level. It can grow in arid places.
Light -
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Soil texture 5-6
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Usage

Uses animal food food gene source medicinal
Edible fruits
Therapeutic use -
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Cultivation

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Distribution

Cucumis humofructus world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:292212-1
WFO ID wfo-0000628886
COL ID -
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Cucumis humofructus