Hugonia grandiflora N.Robson

Species

Angiosperms > Malpighiales > Linaceae > Hugonia

Characteristics

Shrub or liane.. Young twigs with short chocolate-brown spreading and appressed pubescence, becoming lighter brown or cream and glabrescent with age, often with raised lenticels.. Hooks opposite.. Leaf-blade oblong-elliptic to narrowly obovate, 6.5–12 cm. long, 3–5 cm. wide, shortly acuminate, remotely and slightly serrate, subcoriaceous, glabrous except on 9–12 lateral veins; tertiary venation reticulate and prominent.. Stipules persistent, digitate-laciniate, with spreading subulate lobes, 5–10 mm. long, and brown indumentum.. Flowers 1–2 in each leaf-axil; peduncle stout, 4–8 mm. long.. Sepals ovate or elliptic, 9–10 mm. long, obtuse or subacute, with appressed chocolate-brown pubescence externally, glabrous inside.. Petals obovate, 15–30 mm. long, rounded or emarginate, glabrous except for apical fringe, yellow.. Styles 3–5, free, glabrous.. Drupe subglobose, 1.5 cm. in diameter, brown.. Fig. 2/3, p. 5.
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Leaves petiolate; lamina (5) 7–12 × (2·5) 3·5–5 cm., obovate-rhombic to oblong, rounded to apiculate or shortly acuminate at the apex, broadly to narrowly cuneate or decurrent at the base, remotely and shallowly serrate, subcoriaceous, ± densely appressed-or subappressed-pubescent along the midrib above and below, on lateral nerves below and at the base of the lamina, otherwise glabrous (more rarely wholly glabrous), with the midrib and 9–12 pairs of lateral nerves impressed above and prominent below, and the densely reticulate tertiary venation prominent on both sides; petiole (5) 6–10 (11) mm. long, subappressed-chocolate-pubescent; stipules 5–10 mm. long, 3-fid or 4–7-pinnatifid with subulate lobes, long-appressed-pubescent outside, glabrous and ribbed within, persistent.
Shrub or small liane; branches striate and with short ± spreading chocolate-brown pubescence when young, eventually (3rd year) terete, glabrescent, with cream-brown bark and numerous raised whitish lenticels.
Sepals 9–10 mm. long, ovate to lanceolate-elliptic, the outer ones acute or subacute, the inner ones rounded, shallowly vertically ribbed, appressed-chocolate-pubescent outside, glabrous within.
Flowers solitary or paired, in axils of foliage leaves; peduncles 4–8 mm. long, stout, subappressed-chocolate-pubescent.
Petals yellow, 20–30 mm. long, obovate, emarginate at the apex, with margin pubescent, otherwise glabrous.
Ovary c. 4 mm. long, ovoid, glabrous; styles 3–5, glabrous, free; stigmas broadly and obliquely capitate.
Drupe c. 1·5 cm. in diameter, subglobose, with thin brown pericarp and 3–5 fertile 1-seeded loculi.
Stamens with linear glabrous filaments; anthers ovate-oblong, with apical tuft of hairs.
Seeds c. 8 mm. long, whitish.
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Growth form shrub
Growth support climber
Foliage retention deciduous
Sexuality hermaphrodite
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Distribution

Hugonia grandiflora world distribution map, present in Mozambique and Tanzania, United Republic of

Conservation status

Hugonia grandiflora threat status: Endangered

Identifiers

LSID urn:lsid:ipni.org:names:544216-1
WFO ID wfo-0000725743
COL ID 3MSXR
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Hugonia grandiflora