Paracephaelis trichantha (Baker) De Block

Species

Angiosperms > Gentianales > Rubiaceae > Paracephaelis

Characteristics

Leaf blades drying greyish or sometimes blue-black or brownish, usually discolorous, 2.8–10 × 1.6–6 cm, elliptic to round or ovate to broadly ovate, obtuse to rounded or less often acute to shortly acuminate and usually mucronulate at apex, acute to obtuse or less often truncate or rounded and sometimes unequal at the base, glabrous to shortly pubescent above, glabrous with hairs restricted to nerves or pubescent beneath; domatia present as tufts of whitish hairs; petiole 0.7–1.6 cm long, glabrescent to pubescent; stipules 1.5–3 mm long, triangular, shortly apiculate, glabrescent to pubescent outside, caducous.
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Inflorescences terminal on short lateral branches and sometimes on the main branches, sessile, occasionally with an additional pair of branches arising from the next node down, often congested; primary branches 0.3–1.6 cm long, sparsely to densely pubescent; pedicels absent, the base of the calyx tube surrounded by filiform to subulate pubescent bracteoles, or pedicels up to 3 mm long, sometimes bearing a bractlet.
Corolla white, salver-shaped, densely covered with appressed hairs outside; tube 4–5 mm long, 0.75–1 mm wide at top, pubescent within; lobes 2 × 1–1.5 mm, ± oblong, rounded, nerves conspicuous.
Calyx pubescent; tube 1–1.25 mm long; limb-tube 0.75–1.25 mm long, equalling the tube in width, divided almost to base into narrowly triangular to sublinear lobes.
Shrub or small tree 1.2–4.5 m tall; stems ± terete, frequently gnarled, sometimes pubescent when young, covered with grey or buff-coloured bark, readily peeling.
Fruit green, 4.5 mm in diameter, sparsely covered with short hairs, usually 2–4-seeded; calyx limb persistent; pedicels tending to lengthen.
Seeds reddish-brown, 2–3 mm across, with a shallow hilar groove, smooth.
Anthers oblong, only partly or less often ± fully exserted.
Placenta small, bearing 2–3 pendulous ovules.
Flowers (4)5-merous.
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Growth form tree
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Sexuality hermaphrodite
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Mature height (meter) 1.2 - 4.5
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Environment

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Hardiness (USDA) 9-12

Usage

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Cultivation

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Distribution

Paracephaelis trichantha world distribution map, present in Comoros, Kenya, Madagascar, Mozambique, and Tanzania, United Republic of

Conservation status

Paracephaelis trichantha threat status: Vulnerable

Identifiers

LSID urn:lsid:ipni.org:names:70028649-1
WFO ID wfo-0000336328
COL ID 4CP3C
BDTFX ID -
INPN ID 807549
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Pavetta trichantha Paracephaelis trichantha Tarenna trichantha