A taxonomic revision of the genus Noronhia Stadtm. ex Thouars (Oleaceae) in Madagascar and the Comoro Islands Author Hong-Wa, Cynthia Missouri Botanical Garden P. O. Box 299 St. Louis MO 63166 - 0299 U. S. A & Claude E. Phillips Herbarium Delaware State University 1200 N. DuPont Hwy, Dover DE 19901 - 2277 U. S. A. chwa@desu.edu text Boissiera 2016 2016-10-21 70 1 292 journal article 22287 10.5281/zenodo.7599432 f2ceb54b-e71d-4433-9e67-b75b62f8a902 978-2-8277-0086-8 0373-2975 7599432 34. Noronhia humblotiana (H. Perrier) Hong-Wa, comb. & stat. nov. ≡ Noronhia mangorensis var. humblotiana H. Perrier in Mém. Inst. Sci. Madagascar , Sér. B, Biol. Vég. 2: 303. 1949 . Typus : M ADAGASCAR. Prov. Antsiranana : Antakare [Antakarana], [ 12°54’S 49°08’E ], s.d., Humblot 584 (holo-: P [ P00701218 ]!; iso-: K [ K000233185 , K000233186 ] image seen, S [ S09-36009 ] image seen). Description Trees to 10 m tall, trunk to 15 cm diameter; young twigs cylindrical, 0.6-1.3 mm diameter, glabrous; bark dark to medium gray, smooth. Leaves opposite, persistent; bud scales persistent; blades dark green above, lighter below, ovate to oblong, 4.5- 6.5 3 1.5-4 cm , coriaceous, glabrous, domatia absent, base acute to attenuate, margin flat to slightly revolute, apex acuminate, the acumen 3.5-12 mm long, midrib slightly sunken above, distinctly raised below, secondary veins conspicuous, 6-10 per side, 4-12.5 mm apart, looping 1-3.5 mm from the margin; petiole dark to medium gray, 2-7 3 1-2 mm , entirely woody, glabrous. Flowers fasciculate; ped-icel 10-25 mm long, moderately pubescent; calyx moderately pubescent outside, glabrous inside, lobes triangular, 1-2 3 0.9-2 mm ; corolla pink to red, urceolate, 4-9.5 mm long, glabrous on both sides, the tube 2.5-6 mm long, lobes ovate, apex obtuse; corona present, 1.5-2.5 mm long, lobed; stamens 1.5-3.5 mm long, anthers obovate, 1.2-1.3 mm long; pistil 2-3.2 mm long, stigma capitate. Fruiting pedicel 12-14 3 0.9-1.1 mm ; young fruits green, reddish black when mature, ellipsoid, 9.5 3 7.5 mm , surface rugose, apex flat, style persistent; dry pericarp 0.9 mm thick; endocarp woody. Distribution, ecology and phenology Noronhia humblotiana occurs in mid- to high-elevation humid forests in the north, from Marojejy to Bemafo ( Fig. 19 ). It produces flowers and fruits from October to May. Conservation status Based on 17 collections representing 16 localities, the assessment yielded an EOO of 19,257 km 2 , an AOO of 60 km 2 , and 15 subpopulations representing 13 loca-tions, of which eight occur within protected areas (Ampasindava, Galoko, Loky-Ma-nambato, Makira, Makirovana-Tsihomanaomby, Marojejy, Tsaratanana, and Tsarata-nana-Ambohimirahavavy-Corridor Marojejy). Despite a relatively narrow distribu-tion and habitat degradation in some of areas, N. humblotiana occurs in more than 10 locations, most of which are encompassed within protected areas. Therefore, this species is assigned a preliminary status of “Near Threatened”. 126 Boissiera 70 Notes Noronhia humblotiana can be recognized by its coriaceous leaf blades with lighter-col-ored venation, fasciculate, long-pedicellate flowers, and rugose fruits. It was described as a variety of N. mangorensis H. Perrier from which it differs by its flatter and less coria-ceous, acuminate (vs. cuspidate) leaf blades, longer pedicels ( 10-25 mm vs. 5-13 mm ), urceolate (vs. cupuliform) flowers, and ellipsoid (vs. ovoid) fruits. Additional specimens examined MADAGASCAR . Prov. Antsiranana : Andapa , Antsahamena , Ambodiangezoka , 14°57’58”S 49°42’54”E , 338 m , 9.XI.2003 , Antilahimena 2308 ( G , MO ) ; Antongondriha , massif du Bet-somanga , [ 14°15’S 49°45’E ], 700 m , 17.XI.1950 - 20.XI.1950 , Humbert & Capuron 24271 ( G , MO , P ) ; Marojejy PN , 14°27’S 49°47’E , 380 m , 5.X.1988 , Miller et al. 3369 ( K , MO , P , TAN ) ; ibid. loc. , 14°27’S 49°47’E , 300 m , 2.XII.1989 , Miller & Randrianasolo 4645 ( MO , P , TAN ) ; ibid. loc. , 14°26’13”S 49°46’32”E , 460 m , 10.X.1996 , Rakotomalaza et al. 729 ( G , MO , P , TAN ) ; Sambava , Anjagoveratra , Anamboafo , forêt de Makirovana , 14°09’14”S 49°57’43”E , 481 m , 20.III.2013 , Rakotonirina et al. 84 ( MO , P , TAN ) ; Vohémar , Analamazava , 8 km of Ankijabe village , 13°15’43”S 49°35’22”E , 840 m , 25.XI.2004 , Ranarivelo et al. 455 ( CAS , MO , TAN ) ; Anjanaharibe-Sud RS , 14°32’45”S 49°35’15”E , 809-1364 m , 25.V-3. VI .1994 , Ravelonarivo 138 ( MO , P , TAN ) ; Sambava , Bevontro , Morafeno , forêt d’Antsahandroboka , 14°10’22”S 49°17’54”E , 910 m , 6. II .2006 , Razakamalala et al. 3197 ( G , MO , P , TAN ) ; Bet-somanga , Anjanabe , [ 14°15’30”S 49°44’00”E ], 700 m , 18.XI.1950 , Service Forestier 832 ( P , TEF ) ; Bemafo , [ 14°12’S 49°06’E ], 2000 m , I .1951 , Service Forestier 954 ( P , TEF ) . Prov. Maha-janga : Ambohimiravavy , Bemafo , 1781 m , 1.X.2005 , Callmander et al. 395 ( G , MO , P , TAN ) ; Tsaratanana Massif , [ 13°57’S 48°52’E ], 1800-2000 m , 8. V .1974 , Gentry 11581 ( MO , P , TAN ).