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: 233-236

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scientific name

Noronhia rollandii


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

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!)   .

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.

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.

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   .

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

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



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.

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

236 Diagnosis



Distribution, ecology and phenology

Conservation status


Department of Botany, Swedish Museum of Natural History


"Alexandru Ioan Cuza" University


Conservatoire et Jardin botaniques de la Ville de Genève


Royal Botanic Gardens


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


Parc de Tsimbazaza


Missouri Botanical Garden


Centre National de la Recherche Appliquée au Developement Rural


Royal British Columbia Museum - Herbarium


Mykotektet, National Veterinary Institute


Harvard University - Arnold Arboretum