Noronhia planifolia H. Perrier

Hong-Wa, Cynthia, 2016, A taxonomic revision of the genus Noronhia Stadtm. ex Thouars (Oleaceae) in Madagascar and the Comoro Islands, Boissiera 70, pp. 1-292: 215-218

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Noronhia planifolia H. Perrier


66. Noronhia planifolia H. Perrier   ex Hong-Wa, spec. nova ( Fig. 50).

Linociera incurvifolia var. planifolia H. Perrier   in Mém. Inst. Sci. Madagascar, Sér. B, Biol. Vég. 2: 280. 1949 [nom. inval.].

Noronhia incurvifolia var. planifolia (H. Perrier)   Hong-Wa & Besnard in Mol. Phylogenet. Evol. 67: 376. 2013 [nom. inval.].

Typus: M ADAGASCAR. Prov. Antsiranana: Collines et plateaux calcaires de l’Ankarana, à l’E et NE d’Ambondrofe, [12°54’S 49°08’E], 300-350 m, XII.1937 - I.1938, Humbert 18966 (holo-: P [ P03559156]!; iso-: K [ K000233204] image seen, P [ P03559158]!, WAG [ WAG0004663 View Materials ] image seen) GoogleMaps   .

Noronhia planifolia H. Perrier   ex Hong-Wa can be distinguished from other members of the genus by its coriaceous, widely oblong leaf blades, bearing abundant domatia, its rostellate fruits, and crustaceous endocarp.

Trees to 10 m tall; young twigs cylindrical, 0.6-1.6 mm diameter, glabrous; bark medium gray, slightly rugose. Leaves opposite, persistent; bud scales deciduous; blades medium green above, lighter below, broadly oblong, 4-9 3 2-5.5 cm, coriaceous, glabrous, domatia abundant, base attenuate, margin flat, apex cuspidate, the cusp 3-10 mm long, midrib slightly sunken above, distinctly raised below, secondary veins conspicuous, 5-9 per side, 5-15 mm apart, looping 1-5 mm from the margin; petiole light gray, 4-15 3 0.8-1.6 mm, partially woody, glabrous. Flowers unseen, but infructescence thyrsoid. Fruiting pedicel 4-13 3 1.1-2.2 mm; young fruits green, brownish when mature, ovoid, 8.5-19 3 8.5-15 mm, surface smooth, apex flat to rostellate, with the persistent style; dry pericarp 0.5-0.8 mm thick; endocarp crustaceous; seed 6.5-12 3 5-10 mm.

The specific epithet refers to the flat leaf blades of this species as opposed to the folded leaves of Noronhia incurvifolia   , within which N. planifolia   was originally considered to be a variety.

Noronhia planifolia   occurs in low-elevation dry forests at Ankarana in the north ( Fig.

49). It fruits from October to May.

Noronhia planifolia   is currently known only from six collections representing six localities. The estimates indicated an EOO of 111 km 2, an AOO of 20 km 2, and five subpopulations representing five locations, of which one occurs within a protected area (Ankarana). Conversion of forested areas into agricultural field and pastureland and

216 Notes


exploitation of forest products, resulting in habitat loss and degradation and loss of mature individuals, impact the subpopulations outside of protected areas. Therefore, N. planifolia   is assigned a preliminary status of “Endangered” [EN B1ab(i,ii,iii,iv,v)+2ab (i,ii,iii,iv,v)].

Noronhia planifolia   , originally recognized as a variety of N. incurvifolia   , differs from it by its woody (vs. non-woody) petioles, flat (vs. folded and curved) leaf blades, and crustaceous (vs. woody), rostellate (vs. rostrate) fruits. A corona may also be present in this species although no flowering material has so far been collected. Noronhia planifolia   also resembles N. cuspidata   , from which it differs by having broadly oblong (vs. broadly elliptic), coriaceous (vs. subcoriaceous) leaf blades, longer petioles (15 mm vs. 9 mm), rostellate (vs. apiculate) fruit, and crustaceous (vs. subcrustaceous) endocarp.

PERRIER DE LA BâTHIE’ s (1949) description of Linociera incurvifolia var. planifolia   is invalid because he did not provide a Latin diagnosis (Art. 39.1; MCNEILL et al., 2012). Consequently, this entity, which is recognized here as a distinct species, is described here as new, retaining the original epithet and type collection.

MADAGASCAR. Prov. Antsiranana: Ankarana RS, [12°49’S 49°01’E] GoogleMaps   , 50-409 m, 12-20.X.1993, Andrianantoanina 383 ( K, MO, TAN); ibid. loc., à l’W de Mahamasina GoogleMaps   , 12°57’25”S 49°07’35”E, 161 m, 31. V GoogleMaps   .1995, Andrianantoanina et al. 801 ( G, K, MO, P, TAN); ibid. loc., tsingy close to Campement des Anglais GoogleMaps   , 12°50’47”S 49°06’18”E, 82 m, 25. V GoogleMaps   .1999, De Block et al. 1012 ( BR, MO, P, TAN); ibid. loc., [12°58’S 49°08’E] GoogleMaps   , X.1964, Morat 891 ( P, TAN); ibid. loc GoogleMaps   ., 12°58’S 49°08’E, 50 m, 15. VI GoogleMaps   .1995, Razafimandimbison & Andrianantoanina 98 ( G, K, MO, P); Ankara , jardin botanique 8, [12°49’S 49°01’E] GoogleMaps   , 50-409 m, 24.VII.1954, Service Forestier 10423 ( MO, P, TEF)   .

218 Description

Distribution, ecology and phenology

Conservation status



Botanische Staatssammlung München


University of New England


Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants


Royal Botanic Gardens


Wageningen University


Missouri Botanical Garden


Parc de Tsimbazaza


Royal British Columbia Museum - Herbarium


Conservatoire et Jardin botaniques de la Ville de Genève


Embrapa Agrobiology Diazothrophic Microbial Culture Collection


Mykotektet, National Veterinary Institute


Centre National de la Recherche Appliquée au Developement Rural














Noronhia planifolia H. Perrier

Hong-Wa, Cynthia 2016

Noronhia incurvifolia var. planifolia (H. Perrier)

Hong-Wa & Besnard 2013: 376

Linociera incurvifolia var. planifolia

H. Perrier 1949: 280