Noronhia candicans 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: 60-62

publication ID

978-2-8277-0086-8

persistent identifier

http://treatment.plazi.org/id/824F8D54-FF9A-3A2B-FE28-FEE6FE34F893

treatment provided by

Carolina

scientific name

Noronhia candicans H. Perrier
status

 

10. Noronhia candicans H. Perrier   in Mém. Inst. Sci. Madagascar, Sér. B, Biol. Vég. 2: 301. 1949 ( Fig. 6B).

Lectotypus (designated here): MADAGASCAR. Prov. Mahajanga: Bassin moyen du Bemarivo (Boina), [15°27’S 47°40’E], IX.1902, Perrier de la Bâthie 8829 ( P [ P00418071]!; isolecto-: P [ P00418072]!) GoogleMaps   . Syntypus: Bassin moyen du Bemarivo (Boina), [15°27’S 47°40’E], 500 m, IX.1902, Perrier de la Bâthie 8828 ( P [ P00418073]!) GoogleMaps   .

Shrubs to small trees to 5 m tall, trunk to 10 cm diameter; young twigs cylindrical, 0.7-1.8 mm diameter, glabrous; bark medium gray, smooth to slightly rugose. Leaves opposite, persistent; bud scales persistent; blades dark green above, lighter below, oblong to broadly elliptic, 4-12 3 1.6-5.2 cm, very coriaceous, glabrous, domatia absent, base acute to truncate, margin flat to slightly undulate, apex acute to acuminate, the acumen 1-16 mm long, midrib sunken above, distinctly raised below, secondary veins barely visible, 7-12 per side, 5-15 mm apart, looping 1-6 mm from the margin; petiole medium to light gray, 3-10 3 1.1-2.7 mm, entirely woody, glabrous. Flowers fasciculate; pedicel 3-20 mm long, sparsely pubescent; calyx sparsely pubescent outside, glabrous inside, lobes triangular, 2-2.6 3 1.5-2 mm; corolla purplish brown, urceolate, 4.5-7 mm long, glabrous on both sides, the tube 3-5 mm long, lobes widely ovate, apex obtuse; corona present, 1.2-1.7 mm long, undivided; stamens 1.8-2 mm long, anthers oblong, 1.3-1.8 mm long; pistil 2.2-2.5 mm long, stigma capitate. Fruiting pedicel 4-25 3 1-1.5 mm; young fruits green, reddish when mature, ovoid, 10-17.5 3 6-10 mm, surface smooth, apex apiculate to rostellate, the rostellum flattened, rounded, style persistent; dry pericarp 0.3-1.3 mm thick; endocarp woody; seed 7.5-10.5 3 5-6 mm.

Noronhia candicans   occurs in low- to mid-elevation dry forests from Montagne des Français and Daraina in the north to Sofia in the west ( Fig. 3). It produces flowers and fruits from September to March.

There were 28 collections representing 21 localities available for analysis, which resulted in an EOO of 27,250 km 2, an AOO of 68 km 2, and 14 subpopulations representing 10 locations, of which seven occur within protected areas (Andavakoera-Andrafiamena-Ambohipiraka, Ankarana, Loky-Manambato, and Montagne d’Ambre). The actual AOO is likely larger but would not exceed 2,000 km 2. In addition, the locations that are not encompassed within protected areas are affected by fire, land conversion, and illegal and/or artisanal mining resulting in habitat degradation and loss and reduction in the number of mature individuals. Therefore, N. candicans   is assigned a preliminary status of “Vulnerable” [VU B1ab(i,ii,iii,iv,v)+2ab (i,ii,iii,iv,v)].

Notes

Additional specimens examined

Noronhia candicans   can be recognized by its very coriaceous, oblong to elliptic leaf blades, with barely visible venation and its fasciculate, purplish-brown flowers. It differs from N. crassinodis H. Perrier   by its oblong to elliptic (vs. ovate) leaf blades with an acute to acuminate (vs. mucronulate) apex, barely visible (vs. conspicuous) venation, and purplish brown (vs. reddish) flowers. This species was described based on two syntypes, Perrier de la Bâthie 8828 and 8829, of which a specimen of the latter was chosen as the lectotype as it has more reproductive organs.

MADAGASCAR. Prov. Antsiranana: Ankarana RS, 12°54’43”S 49°06’39”E, 180 m, 19. II.1994, Andrianarisata 45 ( MO, P) GoogleMaps   ; ibid. loc., 12°54’36”S 49°06’25”E, 130 m, 16.X.1997, Bardot-Vaucoulon 775 ( K, MO, P, TAN) GoogleMaps   ; ibid. loc., tsingy close to Campement des Anglais , 12°50’47”S 49°06’18”E, 82 m, 25. V.1999, De Block 1013 ( BR, MO, P, TAN) GoogleMaps   ; ibid. loc., from Campement des Anglais towards Campement des Américains , 12°50’47”S 49°06’18”E, 82 m, 13. I.2002, De Block 1193 ( BR, G, MO, P, TAN) GoogleMaps   ; Andrafiamena, Anjahankely , 12°55’00”S 49°20’25”E, 390 m, 27.XII.2010, Burivalova et al. 140 ( G, MO) GoogleMaps   ; Daraina, forêt d’Antsahabe , 13°12’58”S 49°32’55”E, 830 m, 4.XII.2004, Gautier 4825 (Daraina, G, K, MO, TEF) GoogleMaps   ; Andrafiamena, Anjahankely , 12°54’46”S 49°19’37”E, 410 m, 10.XI.2010, Gautier & Ranirison 5382 ( G, MO) GoogleMaps   ; Marivorahona, Betsimiranja , 12°56’27”S 49°07’21”E, 136 m, 18. I.2009, Hong-Wa 566 ( MO, P, TAN) GoogleMaps   ; Sakaramy, Montagne d’Ambre PN, 12°26’41”S 49°13’45”E, 367 m, 30. V.2010, Hong-Wa 699 ( MO, P, TAN) GoogleMaps   ; Andrafiabe, Mont Antsahabe , 12°54’50”S 49°19’41”E, 408 m, 3.VII.2010, Hong-Wa 723 ( MO, TAN) GoogleMaps   ; Ankarana RS, near Campement des Anglais , 12°54’42”S 49°06’42”E, 240-260 m, 22. V.1993, Jongkind & Rapanarivo 964 ( MO, P, TAN) GoogleMaps   ; Tanambao-Marivorahona , 13°02’54”S 49°09’30”E, 154 m, 4.VII.2005, Leopold et al. 119 ( CNARP, G, MO, P, TAN) GoogleMaps   ; Daraina, forêt de Bekaraoka , 13°06’32”S 49°42’28”E, 216 m, 12. II.2004, Nusbaumer & Ranirison 1154 (Daraina, G, K, MO, TEF) GoogleMaps   ; ibid. loc., Andranovaka, Ankijomantsina , 13°07’56”S 49°28’20”E, 75 m, 29.X.2005, Rakotonandrasana et al. 946 ( CNARP, G, MO, P, TAN) GoogleMaps   ; ibid. loc., forêt de Binara, 13°14’14”S 49°37’19”E, 310 m, 28.III.2004, Ranirison 506 (Daraina, G, K, MO, P, TEF) GoogleMaps   ; ibid. loc., forêt d’Ambohitsitondroina , 13°07’56”S 49°28’08”E, 165 m, 7. I.2006, Ranirison & Nusbaumer 1057 (Daraina, G, K, MO, TEF) GoogleMaps   ; ibid. loc., 13°08’19”S 49°27’58”E, 200 m, 8. I.2006, Ranirison & Nusbaumer 1066 (Daraina, G, K, MO, P, TEF) GoogleMaps   ; Analabe , [14°03’S 49°43’E], 200 m, 13.IX.1955, Service Forestier 15497 ( TEF) GoogleMaps   . Prov. Mahajanga: Antsohihy, Antonibe , Anjajavy , 15°01’26”S 47°15’34”E, 24 m, 19.VIII.2007, Rasoafaranaivo et al. 251 ( MO, P, TAN) GoogleMaps   .

62 Description

Distribution, ecology and phenology

Conservation status

Notes

P

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

MO

Missouri Botanical Garden

K

Royal Botanic Gardens

TAN

Parc de Tsimbazaza

V

Royal British Columbia Museum - Herbarium

BR

Embrapa Agrobiology Diazothrophic Microbial Culture Collection

I

"Alexandru Ioan Cuza" University

G

Conservatoire et Jardin botaniques de la Ville de Genève

TEF

Centre National de la Recherche Appliquée au Developement Rural

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Lamiales

Family

Oleaceae

Genus

Noronhia

Loc

Noronhia candicans H. Perrier

Hong-Wa, Cynthia 2016
2016