Noronhia jeremii

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: 137-140

publication ID

978-2-8277-0086-8

persistent identifier

http://treatment.plazi.org/id/824F8D54-FF2F-3A99-FE29-FEE6FE35FA8B

treatment provided by

Carolina

scientific name

Noronhia jeremii
status

 

39. Noronhia jeremii   Hong-Wa & Callm. in Candollea   64: 199. 2009 ( Fig. 28A).

Typus: M ADAGASCAR. Prov. Antsiranana: Ambanja, Beramanja , massif du Kalabenono, 13º38’38”S 48º40’07”E, 520 m, 25.XI.2007, Callmander & Razafitsalama 740 (holo-: MO-6406809!; iso-: G [ G00165767]!, K!, P [ P00727210]!, TAN!, WAG!) GoogleMaps   .

Shrubs to 4 m tall, trunk to 2 cm diameter; young twigs cylindrical, 1.3-2.6 mm diameter, glabrous; bark medium to light gray, smooth. Leaves opposite, persistent; bud scales deciduous; blades medium green above, lighter below, linear to oblong, 10.5-27 3 2-7 cm, subcoriaceous, glabrous, domatia absent, base rounded to cordate, margin slightly undulate, apex acuminate, the acumen 6-23 mm long, midrib flat to slightly sunken above, raised below, secondary veins conspicuous, 10-21 per side, 6-22 mm apart, looping 1.5-5 mm from the margin; petiole light gray to brownish, 6-16 3 2-4 mm, entirely woody, glabrous. Thyrses solitary, pauciflorous, diffuse; peduncle 11-16 mm long, glabrous; pedicel 11-20 mm long, glabrous; calyx glabrous on both sides, lobes deltate, 2-2.6 3 1.4-1.7 mm; corolla yellowish, cupuliform, 5-6 mm long, glabrous on both sides, the tube 2-2.5 mm long, lobes triangular, apex acute; corona absent; stamens 2.2- 2.5 mm long, anthers widely obovate, 1.5-1.6 mm long; pistil 2.3-3 mm long, stigma capitate. Fruiting pedicel 11-25 3 1-2 mm; young fruits green, brownish when mature, ampulliform to subglobose, 15.5-20 3 11-19 mm, surface smooth, apex apiculate; dry pericarp 0.3-1.1 mm thick; endocarp subcrustaceous; seed 9.5 3 11.5 mm.

Noronhia jeremii   is named after Jérémie “Jimmy” Razafitsalama, a botanist working for the Missouri Botanical Garden in Madagascar, who collected the type material with the second author of this species. Jimmy was part of a team that undertook botanical inventories between 2005 and 2008 to explore the flora and vegetation in a long-neglected region of low- to high-elevation humid forest in northern Madagascar. These field expeditions led to the discovery of at least 20 new species in various families (CALLMANDER et al., 2008, 2009, 2012; WAHLERT, 2016).

Noronhia jeremii   occurs in low- to mid-elevation humid forests on sandstones and basement rocks in northern Madagascar, from Makira in the east to Kalobinono [previously called Kalabenono] in the west ( Fig. 27). It produces flowers and fruits from August to November.

The assessment, which was based on six collections representing six localities, resulted in an EOO of 796 km 2, an AOO of 16 km 2, and three subpopulations representing two locations, of which only one occurs within a protected area (Galoko). The third location sits outside the new protected area of Makira, where

138 Notes

Additional specimens examined

forests are potentially subject to exploitation leading to a reduction in habitat quality. Therefore, N. jeremii   is assigned a preliminary status of “Endangered” [EN B 1ab(iii)+2ab(iii)].

Noronhia jeremii   can be recognized by its long, broadly linear leaf blades, petioles that are attached to the lower surface of the leaf blades, flowers lacking a corona, and apiculate fruits. It differs from N. capuronii   by its glabrous (vs. pubescent) petioles, linear to oblong (vs. ovate) leaf blades, and woodier endocarp.

MADAGASCAR. Prov. Antsiranana: Ambilobe, Beramanja , Anketrabe , forêt de Kalabenono, 13°38’20”S 48°40’16”E, 374 m, 19.XI.2006, Callmander et al. 537 ( G, K, MO, P, TAN) GoogleMaps   ; ibid. loc., 13°38’23”S 48°40’24”E, 550 m, 28.IX.2013, Randriantsivery & Manjato 396 ( MO, TAN) GoogleMaps   ; ibid. loc., forêt de Galoko, 13°35’28”S 48°43’14”E, 3.X.2013, Randriantsivery et al. 419 ( G, MO, P, TAN) GoogleMaps   ; ibid. loc., forêt de Kalabenono, 13°38’40”S 48°40’26”E, 700 m, 28.IX.2013, Ratovoson 2040 ( G, MO, P, TAN) GoogleMaps   . Prov. Toamasina: Maroantsetra, Ambinanitelo , Marovovonana , 15°19’42”S 49°31’49”E, 150 m, 29.VIII.2004, Antilahimena 2618 ( G, MO, P) GoogleMaps   .

Photos: taken by respective coLLectors.

140 Description

M

Botanische Staatssammlung München

G

Conservatoire et Jardin botaniques de la Ville de Genève

K

Royal Botanic Gardens

P

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

TAN

Parc de Tsimbazaza

WAG

Wageningen University

B

Botanischer Garten und Botanisches Museum Berlin-Dahlem, Zentraleinrichtung der Freien Universitaet

MO

Missouri Botanical Garden

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Lamiales

Family

Oleaceae

Genus

Noronhia

Loc

Noronhia jeremii

Hong-Wa, Cynthia 2016
2016
Loc

Candollea

Hong-Wa & Callm. 2009: 199
2009