Noronhia rollandii, Hong-Wa, 2016

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 : 233-235

publication ID

https://doi.org/ 10.5281/zenodo.7599432

DOI

https://doi.org/10.5281/zenodo.7590367

persistent identifier

https://treatment.plazi.org/id/824F8D54-FF4F-3AFE-FE28-FEE6FBC9F85C

treatment provided by

Carolina

scientific name

Noronhia rollandii
status

 

72. Noronhia rollandii View in CoL Hong-Wa, spec. nova ( Fig. 58 View Fig ).

Typus: MADAGASCAR. Prov. Toamasina: Alaotra-Mangoro, Moramanga , Ambatovy , Ampitabe , piste direction S du campement Dynatec , 18°51’34”S 48°17’13”E, 1080 m, 18. I GoogleMaps .2005, Ranaivojaona et al. 1151 (holo-: MO-6615552!; iso-: G [ G00341615 ]!, K!, P!, TAN!) .

Diagnosis

Noronhia rollandii Hong-Wa can be distinguished from other members of the genus by its non-woody petioles, its opposite to verticillate, oblong leaf blades, its urceolate, yellow flowers, and its ovoid, punctate fruits.

Description

Trees to 15 m tall, trunk to 24 cm diameter; young twigs cylindrical to somewhat flattened, 1.1-2.3 mm diameter, glabrous; bark dark gray, smooth, with scattered lenticels. Leaves opposite, verticillate at the tips of the branches, persistent; bud scales deciduous; blades light green above, darker below, oblong, 4-10 3 1.5-3 cm, coriaceous, glabrous, domatia absent, base attenuate, margin flat, apex retuse, midrib slightly sunken above, distinctly raised below, secondary veins inconspicuous, 7-12 per side, 5-15 mm apart, looping 1-3.5 mm from the margin; petiole brown, 4-10 3 1-3 mm, not woody or only up to mid-length, glabrous. Thyrses geminate, multiflorous, compact; peduncle 5-10 mm long, moderately pubescent; pedicel 2-8 mm long, moderately pubescent; calyx moderately pubescent outside, glabrous inside, lobes triangular, 0.8-1.5 3 1-1.8 mm; corolla yellow tinged pinkish outside, yellow inside, urceolate, 3-4.5 mm long, glabrous on both sides, the tube 1-2 mm long, lobes widely ovate, apex acute; corona present, 1.7-2.3 mm long, undivided; stamens 2-2.5 mm long, anthers oblong to obovate, 1.5-1.8 mm long; pistil 2-2.7 mm long, stigma capitate. Fruiting pedicel 2-8 3 1-2.5 mm; young fruits green, brownish to blackish when mature, ovoid, 12-24 3 8-17 mm, covered with white dots, apex bluntly pointed to apiculate; dry pericarp 0.3-1.4 mm thick; endocarp woody; seed 9-15.5 3 7-11.5 mm.

Etymology

This name honors the late Rolland Ranaivojaona, a botanist at the Parc Botanique et Zoologique de Tsimbazaza (TAN), for collecting the type specimen and for sharing his knowledge of the Malagasy flora.

Distribution, ecology and phenology

Noronhia rollandii occurs in mid- to high-elevation humid forests in the east, from Anjanaharibe-Sud to Mangoro ( Fig. 49 View Fig ). It produces flowers year-round except in December.

Conservation status

The assessment included 29 collections representing 28 localities and yielded an EOO of 38,636 km 2, an AOO of 84 km 2, and 13 subpopulations representing 11 locations, of which seven occur within protected areas (Anjanaharibe-Sud, Corridor Ankeniheny-Zahamena, Makira, Mantadia, Masoala, Torotorofotsy, and Zahamena). Although the estimated AOO is rather small, the actual AOO is likely much larger and may well exceed 2,000 km 2. That, along with a large EOO, a high number of locations, and good representation within the network of protected areas, indicates a preliminary status of “Least Concern” for N. rollandii .

234 Boissiera 70

A. FLowering branch; B. AbaxiaL side of Leaf bLade; C. AdaxiaL side of Leaf bLade; D. Inflorescence; E. FLower; F. CaLyx; G. Inner side of coroLLa; H. Stamen; I. PistiL View Figure

.

[Ranaivojaona 1151, MO] Drawings: R.L. Andriamiarisoa

Notes

Noronhia rollandii is similar to N. obtusifolia , but can be distinguished by its opposite to verticillate (vs. entirely opposite), oblong (vs. obovate) leaves, urceolate (vs. campanulate), yellow tinged pinkish (vs. white) flowers, the presence (vs. absence) of a corona, and its punctate (vs. smooth to ribbed) fruits. The new species can be recognized by its non-woody petioles, opposite to verticillate, oblong leaf blades, urceolate, yellow flowers, and ovoid, punctate fruits.

Paratypi

MADAGASCAR. Prov. Antsiranana: Andapa, Anjanaharibe-Sud RS, 14°46’15”S 49°28’E, 1161-1424 m, 21.III-7.IV.1994, Ravelonarivo et al. 91 ( K, MO, TAN); GoogleMaps ibid. loc., 14°44’42”S 49°27’42”E, 1185-1335 m, 3.XI.1994, Ravelonarivo & Rabesonina 484 ( G, K, MO, P, TAN). GoogleMaps Prov. Fianarantsoa: Ivohibe RS, 22°25’18”S 46°53’54”E, 1200 m, 10.XI.1997, Rakotomalaza 1526 ( G, MO). GoogleMaps Prov. Mahajanga: Befandriana-Nord, Matsoandakana , Ambotaharanana , Andranomena , 15°08’16”S 49°20’55”E, 1077 m, 12.II.2008, Bernard 770 ( G, MO, P, TAN); GoogleMaps ibid. loc., Andasinanantsomanga, Amparihy , 14°55’34”S 49°24’59”E, 25.II.2008, Bernard 938 ( G, MO, P, TAN); GoogleMaps ibid. loc., Ambotaharanana, Andranomena, forêt d’Anjiabe, 15°08’19”S 49°21’50”E, 1208 m, 14.II.2008, Ravelonarivo et al. 2831 ( MO, P, TAN); GoogleMaps ibid. loc., 15.II.2008, Ravelonarivo et al. 2865 ( MO, P, TAN); GoogleMaps Tsaravilona, Amparihy, Androva , 14°55’36”S 49°25’40”E, 1154-1178 m, 22.II.2008, Ravelonarivo 2893 ( MO, P, TAN). GoogleMaps Prov. Toamasina: Antanandava , Zahamena PN, 17°29’47”S 48°45’35”E, 1000-1912 m, 2.II.2002, Andrianjafy et al. 289 ( CNARP, K, MO, P, TEF); GoogleMaps Maroantsetra, Mahalevona , Masoala PN, 15°25’47”S 49°57’33”E, 1198 m, 8.X.2003, Antilahimena et al. 2152 ( MO, P); GoogleMaps Ambinanitelo, Ambalamahogo, Maimborondro , 15°18’39”S 49°22’43”E, 1100 m, 6.IX.2004, Antilahimena 2835 ( MO, P); GoogleMaps Moramanga, Ambatovy , 18°49’19”S 48°20’08”E, 1094 m, 3.II.2005, Antilahimena et al. 3299 ( MO, P, TAN); GoogleMaps ibid. loc., 18°48’24”S 48°19’51”E, 1102 m, 10.XI.2005, Antilahimena & Edmond 4182 ( G, MO, P, TAN); GoogleMaps ibid. loc., 18°51’34”S 48°18’00”E, 1129 m, 8.VIII.2008, Antilahimena et al. 6425 ( MO, P, TAN); GoogleMaps Brickaville, Maroseranana, Ambodilendemy , Ankerana , 18°25’56”S 48°47’11”E, 854 m, 18.III.2011, Antilahimena & Randrimitantsoa 7637 ( G, MO, P, TAN); GoogleMaps Ambatovy , 18°50’30”S 48°18’11”E, 1111 m, 19.V.2010, Bernard et al. 1573 ( MO, P, TAN); GoogleMaps Analamazaotra RS, 18°49’32”S 48°26’04”E, 941 m, 3.V.2010, Hong-Wa & Ortiz 663 ( MO, P, TAN); GoogleMaps Ambatovy , 18°51’17”S 48°19’02”E, 1117 m, 8.IX.2008, Miandrimanana et al. 320 ( G, MO, P, TAN); GoogleMaps ibid. loc., 18°51’48”S 48°18’26”E, 1022 m, 27.I.2008, Phillipson & Antilahimena 6094 ( G, MO); GoogleMaps Moramanga, Antanambao, Analamay , 18°49’26”S 48°20’16”E, 1000 m, 26.I.1997, Rakotomalaza et al. 998 ( MO, P); GoogleMaps ibid. loc., 18°51’22”S 48°19’34”E, 1080 m, 29.VI.1997, Rakotomalaza et al. 1364 ( G, MO, TAN); GoogleMaps Ambatovy , 18°51’08”S 48°17’48”E, 1127 m, 16.II.2005, Rakotovao et al. 1191 ( G, MO, P, TAN); GoogleMaps Zahamena RNI, à 1 km au S du village d’Antenina , 17°30’30”S 48°46’15”E, 900 m, 13.VIII.1994, Randrianjanaka & Zafy 190A ( G, K, MO, P, TAN); GoogleMaps Manakambahiny-Est, Zahamena RNI, 17°40’17”S 48°45’13”E, 1350 m, 16.IX.2002, S. Randrianasolo et al. 304 ( G, MO, P, TEF); GoogleMaps ibid. loc., 17°40’17”S 48°45’13”E, 1350 m, 16.IX.2002, S. Randrianasolo et al. 307 ( G, MO, P, TEF); GoogleMaps Brickaville, Maroseranana, Ambodilendemy , 18°25’57”S 48°46’52”E, 727 m, 14.III.2011, Ravelonarivo & Edmond 3645 ( G, MO, P, TAN); GoogleMaps ibid. loc., 18°25’24”S 48°47’06”E, 896 m, 22.III.2011, Ravelonarivo et al. 3787 ( G, MO, P, TAN); GoogleMaps Analamay , 18°50’49”S 48°18’30”E, 1124 m, 10.II.2005, Razafindraibe & Antilahimena 76 ( MO, P, TAN) GoogleMaps .

CNARP

CNARP

TEF

TEF

S

Department of Botany, Swedish Museum of Natural History

I

"Alexandru Ioan Cuza" University

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

MO

Missouri Botanical Garden

TEF

Centre National de la Recherche Appliquée au Developement Rural

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Lamiales

Family

Oleaceae

Genus

Noronhia

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