Pflanzenwissen · Art
Description Trees to 11 m tall, trunk to 15 cm diameter; young twigs cylindrical, 0.
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Description Trees to 11 m tall, trunk to 15 cm diameter; young twigs cylindrical, 0.6 - 1.5 mm diameter, glabrous; bark medium to light gray, smooth, with scattered lenticels. Leaves opposite, persistent; bud scales rarely persistent; blades dark green above, lighter below, elliptic to obovate, 3 - 7.5 3 1.4 - 4.1 cm, chartaceous, glabrous, domatia absent, base acute to attenuate, margin flat to slightly undulate, apex cuspidate, the cusp 3 - 19 mm long, midrib flat above, raised below, secondary veins conspicuous mostly below, 5 - 10 per side, 5 - 16 mm apart, looping 1 - 4.5 mm from the margin; petiole yellow, 3 - 10 3 0.6 - 1.8 mm, not woody, glabrous. Thyrses fasciculate, pauciflorous, diffuse; peduncle 5 - 15 mm long, glabrous; pedicel 6 - 30 mm long, glabrous; calyx glabrous on both sides, lobes triangular, 1 - 1.5 3 0.7 - 2 mm; corolla yellow to pale lime green, sometimes tinged orange-brown with age, campanulate to subrotate, 3.5 - 7.5 mm long, glabrous on both sides, the tube 0.5 - 2.5 mm long, lobes ovate, apex slightly acute; corona present, 1 - 2 mm long, undivided; stamens 1.4 - 3 mm long, anthers widely oblong to almost square, 0.9 - 1.8 mm long; pistil 1.4 - 2.3 mm long, stigma capitate. Fruiting pedicel 3 - 19 3 0.5 - 1.7 mm; young fruits green, dark red when mature ovoid, 13 - 16.5 3 8 - 13 mm, surface smooth, apex flat to apiculate; dry pericarp 0.2 - 0.6 mm thick; endocarp woody; seed 9 - 12 3 5 - 7.5 mm.
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Conservation status The assessment was based on 28 collections representing 26 localities and yielded an EOO of 133,270 km 2, an AOO of 92 km 2, and 20 subpopulations representing 15 locations, of which 10 occur within protected areas (Analamazaotra, Anjanaharibe-Sud, Corridor Marojejy, Loky-Manambato, Makira, Manongarivo, Masoala, Montagne d’Ambre, Ranomafana, and Zahamena). Given these results and the likelihood that the AOO is much greater than the estimated 2,000 km 2, N. brevituba is assigned a preliminary status of “ Least Concern ”.
Weitere
Global, Madagaskar
Distribution, ecology and phenology Noronhia brevituba occurs in mid- to high-elevation humid forests from Montagne d’Ambre in the north to Ranomafana in the south (Fig. 3). It produces flowers and fruits from September to May.