Noronhia boivinii Dubard

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: 51-53

publication ID

978-2-8277-0086-8

persistent identifier

http://treatment.plazi.org/id/824F8D54-FF95-3A20-FE28-FEE6FE36F906

treatment provided by

Carolina

scientific name

Noronhia boivinii Dubard
status

 

6. Noronhia boivinii Dubard   in Bull. Mus. Hist. Nat. 13: 550. 1907.

Typus:M ADAGASCAR: [Cultivé au] Jardin botanique de Bourbon, s.d., Boivin s.n. (holo-: P [P00413215]!; iso-: P [P00413216]!).

Shrubs to trees to 11 m tall, trunk to 8 cm diameter; young twigs cylindrical, 0.7-1.7 mm diameter, glabrous; bark medium to light gray or whitish, smooth. Leaves opposite, persistent; bud scales persistent; blades dark green above, lighter below, oblong to elliptic, 4.5-13 3 1.6-4 cm, coriaceous, glabrous, domatia absent, base acute to attenuate, margin flat to slightly revolute, apex cuspidate to mucronate, the cusp or mucro (0-) 2-17 mm long, midrib sunken above, raised below, secondary veins conspicuous, 6-12 per side, 6-16 mm apart, looping 1.2-4 mm from the margin; petiole grayish to whitish, 3-10 3 1-2.8 mm, entirely woody, glabrous. Flowers fasciculate; pedicel 2-22 mm long, glabrescent to glabrous; calyx sparsely pubescent outside, glabrous inside, lobes broadly triangular, 0.9-2 3 1-2.5 mm; corolla pink to reddish, sometimes whitish, urceolate to slightly campanulate, 3.5-9 mm long, glabrous on both sides, the tube 1.5-7 mm long, lobes deltate, apex obtuse; corona present, 1-2 mm long, undivided; stamens 1.3-2.5 mm long, anthers elliptic, apex rounded, 1-1.7 mm long; pistil 1.5- 2.7 mm long, stigma capitate. Fruiting pedicel 2-12 3 0.8-2 mm; young fruits green, dark brown when mature, ovoid, 11.5-34 3 8-23.5 mm, surface smooth, apex flat to apiculate; dry pericarp 0.7-1.1 mm thick; endocarp woody; seed 11.5-14 3 4-7 mm.

Noronhia boivinii   occurs in littoral to mid-elevation humid forests in the east, from Masoala to south of Fort-Dauphin (Taolagnaro) and towards Andohahela ( Fig. 3). It produces flowers and fruits throughout the year except in June and July.

The assessment was based on 23 collections representing 21 localities and resulted in an EOO of 54,801 km 2, an AOO of 84 km 2, and 16 subpopulations representing 12 locations, of which eight occur within protected areas (Andohahela, Betampona, Mandena, Manombo, Masoala, Nosy Mangabe, Petriky, and Ste Luce). The AOO is likely larger than estimated here; however, N. boivinii   is mainly found on the littoral forests of eastern Madagascar, which now consist only of isolated patches that are affected by ongoing habitat degradation and destruction, resulting mainly from slash-and-burn agriculture and mining. Noronhia boivinii   is assigned a preliminary status of “Near Threatened” [NT].

Noronhia boivinii   can be recognized by its oblong to elliptic leaf blades terminated by a short cusp or mucro and its fasciculate, pink to red flowers. It differs from N. ovalifolia H. Perrier   by its oblong to elliptic (vs. ovate), cuspidate to mucronate (vs. acuminate) leaf blades, and fasciculate (vs. solitary) and urceolate (vs. cupuliform) flowers.

52 Additional specimens examined

MADAGASCAR. Prov. Fianarantsoa: Manombo RS, 23°00’S 47°42’E, 5.III.2009, Hong-Wa 614 ( MO, P, TAN) GoogleMaps   . Prov. Toamasina: Nosy Mangabe , 15°29’49”S 49°45’20”E, 0-320 m, 8.XII.1998, Abdul-Salim et al. 44 ( MO) GoogleMaps   ; Maroantsetra, Anjahana, Ambanizana , 15°37’16”S 49°58’56”E, 200 m, 15.IX.2002, Antilahimena et al. 1392 ( G, MO, P) GoogleMaps   ; Masoala PN, 15°38’S 49°58’E, 0-520 m, 8.XI.1999, Aridy et al. 316 ( G, MO) GoogleMaps   ; Fénérive-Est, Tampolo STF, 17°17’10”S 49°25’16”E, 5 m, 15.IV.1995, Gereau 5720 ( MO, TAN) GoogleMaps   ; Mahatsara STF, 17°38’18”S 49°29’07”E, 5-10 m, 24.IX.2002, Hong-Wa et al. 83 ( MO, P, TAN, TEF) GoogleMaps   ; Ambila-Lemaitso , 18°54’S 49°07’E, 10 m, 17. I.1999, Lowry 5129 ( MO, P) GoogleMaps   ; Forêt d’Analamazaotra , [18°55’48”S 48°25’48”E], 800 m, Perrier de la Bâthie 5133 ( P) GoogleMaps   ; Brickaville, Ambinaninony, forêt de Vohibola , 18°35’33”S 49°14’05”E, 4 m, 13. II.2003, Rabenantoandro et al. 1267 ( G, MO, P) GoogleMaps   ; Ambodiriana , [17°56’S 49°15’E], 250-500 m, 23.VIII.1957, Service Forestier 18123 ( MO, P, TEF) GoogleMaps   ; Masoala PN, 15°38’12”S 49°58’20”E, 19.XI.1993, van Nek 2121 ( MO, TAN, WAG) GoogleMaps   . Prov. Toliara: Forêt de Mandena , 24°57’S 47°00’E, 10 m, 17.III.1985, Dorr 4012 ( G, MO, P, TAN) GoogleMaps   ; ibid. loc., 24°57’S 47°00’E, 0-10 m, 19.IV.1989, Gereau et al. 3394 ( MO, P, TAN) GoogleMaps   ; Manantenina, on road to Manafiafy , 24°46’S 47°08’E, 0-10 m, 24.IV.1989, Gereau et al. 3421 ( MO, P, TAN) GoogleMaps   ; Fort-Dauphin, Petriky , 25°04’S 46°51’E, 0-10 m, 10.IV.1989, Rabevohitra et al. 1819 ( MO, P, TAN, TEF) GoogleMaps   ; Andohahela PN, Eminiminy , 24°40’30”S 46°48’30”E, 17.IX-30.X.1991, Randriamanantena & Durbin 137 ( K, MO) GoogleMaps   ; Manambaro, Ambovo, forêt de Petriky , 25°03’57”S 46°51’18”E, 10 m, 11. II.2004, Randriatafika et al. 379 ( MO, P, TEF) GoogleMaps   ; Iaboko, Antsotso, forêt d’Ivohibe , 24°33’52”S 47°14’25”E, 112 m, 26.XI.2005, Razakamalala et al. 2378 ( G, MO, P, TAN) GoogleMaps   .

Description

Distribution, ecology and phenology

Conservation status

MO

Missouri Botanical Garden

P

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

TAN

Parc de Tsimbazaza

G

Conservatoire et Jardin botaniques de la Ville de Genève

TEF

Centre National de la Recherche Appliquée au Developement Rural

I

"Alexandru Ioan Cuza" University

WAG

Wageningen University

K

Royal Botanic Gardens

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Lamiales

Family

Oleaceae

Genus

Noronhia

Loc

Noronhia boivinii Dubard

Hong-Wa, Cynthia 2016
2016