Homalium lucidum Scott-Elliot in J. Linn. Soc., Bot. 29: 24. 1891

Applequist, Wendy L., 2018, A revision of Homalium sect. Odontolobus (Salicaceae) endemic to Madagascar, Candollea 73 (1), pp. 27-48 : 34

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https://doi.org/ 10.15553/c2018v731a4



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Homalium lucidum Scott-Elliot in J. Linn. Soc., Bot. 29: 24. 1891


4. Homalium lucidum Scott-Elliot in J. Linn. Soc., Bot. 29: 24. 1891 View in CoL .

Lectotypus (designated by SLEUMER, 1973: 307): MADAGASCAR. Prov. Toliara: Fort Dauphin , V.1889, fl., Scott Elliot 2661 ( K [ K000231842 ] image seen ; isolecto-: P [ P04704037 ]!) .

Tree to 30 m tall, 60 cm dbh; bark dark gray-brown, sometimes slightly fissured or peeling, with a bright yellow slash; young twigs glabrous. Leaves: petiole 3-10(-19) mm long, glabrous (glaucous, peeling); blade elliptical to lanceolate (narrowly lanceolate, aberrantly broadly elliptical), 3.5-11.5 × 1.5-3.8(-4.3) cm; base convex; margins serrulate to crenateserrulate (shallowly crenate, subentire); apex acute to acuminate (emarginate, rounded-cuspidate). Inflorescences racemose, (2.5-)4-10(-12) cm long, glabrous; flowers proximally often in clusters of 2 or 3, sessile (pedicellate with pedicels to 2 mm long); bracts ovate to broadly ovate; bracteoles ovate, minute, caducous. Flowers 6-7(-8)-merous, pale green to white, cream or yellowish, or brown with age (once described as red); sepals deltoid, 0.3-0.4(-0.5) mm long; petals lanceolate (narrowly ovate) to oblong-lanceolate or narrowly elliptical (elliptical), 1.5-2.5(-3.1) mm long, ciliolate, otherwise glabrous (or adaxial surface sparsely short-pubescent), apex acute; filaments 0.3-0.7 mm long; upper surface of ovary sparsely to moderately short-pubescent; styles 2-3, 0.3-0.5 mm long.

Vernacular names. – “Fotsakara (g[rands] f[euilles])” (Service Forestier 2718, 2737); “Hazofotsy” (Antilahimena et al. 4835); “Hazokoaky” (Service Forestier 13942); “Mafaikoditra” (Antilahimena et al. 1139); “Maroampotolia” (Réserves Naturelles 3668); “Menavahatra” (Antilahimena et al. 7110); “Ramisaona” (Service Forestier 14569, 14608).

Distribution, ecology and conservation status. – Homalium lucidum is widely distributed in humid regions of Madagascar and occurs from near sea level to over 1400 m elevation. The species is widely distributed from Antananarivo province in the center to Toliara province in the south and is relatively common with many localities within the protected area network (i.e., Andohahela, Anjozorobe, Betampona, Makira, Nosy Mangabé and Tsitongambarika). Homalium lucidum is therefore assigned a preliminary assessment of conservation status of “Least Concern” [LC].

Note. – Homalium lucidum was described from only one collection. As for other species published by Scott Elliot, the duplicate at K, where he worked, has been informally considered to be the “ holotype.” However, as other duplicates of his own collections were certainly available to him, and the publication did not specify that specimens cited were held at K, the two known duplicates of Scott Elliot 2661 should be regarded as syntypes under Art. 9.5 of the ICN ( MCNEILL et al., 2012). SLEUMER’S (1973) subsequent statement that the K and P duplicates were the “ holotype ” and “isotype”, respectively, was an effective selection of the former as lectotype, with the use of “ holotype ” being a correctable error under Art. 9.9.

Selected material examined. – MADAGASCAR. Prov. Antananarivo: 3.0 km NW of Ambohitsaratelo-Bebao ( NW of Tsiroanomandidy ), 1100-1200 m, 16.I.1985, fl., Dorr et al. 3587 ( MO, P) ; Bongolava, 1300 m, VII.1974, fl. & fr., Morat 4639 ( MO [2 sheets], P [4 sheets]) ; Fkt. Ambaravaranala , 18°25’S 45°40’E, 1190-1200 m, 25.VI.1997, fr., Rakotomalaza et al. 1344 ( G, K, MO) GoogleMaps ; forêt de Besofina à 8 km au S de Betatao, 18°15’10’’S 47°53’27’’E, 1386 m, 9.III.2000, fl., Randrianaivo et al. 517 ( MO, P) GoogleMaps ; 7 km E of Anjozorobe, 18°22’S 48°00’E, 1300 m, 11.V.1987, fl., Schatz et al. 1380 ( MO, P) GoogleMaps . Prov. Fianarantsoa: Fkt. Iabomaro , 23°11’07’’S 47°42’32’’E, 24 m, 19.VI.2004, fr., A. Randrianasolo et al. 878 ( P) GoogleMaps ; Vangaindrano , 20.I.1950, fl., Service Forestier 2737 ( P) ; Manakara, Vakoary , 11.V.1955, fr., Service Forestier 14569 ( P) ; Manakara, forêt Belambo , 11.V.1955, Service Forestier 14608 ( P) . Prov. Mahajanga: 9.6 km NW of Ambohistaratelo-Bebao, 1200 m, 14.I.1985, fl., Dorr et al. 3535 ( MO, P) ; 5 km à l’E de Bandabe, 15°31’08’’S 49°06’00’’E, 3696’, 25.IV.2007, fr., Ravelonarivo et al. 2253 ( MO, P) GoogleMaps . Prov. Toamasina: 5 km du village d’Anony, vers Ankarefobe , 17°12’26’’S 48°33’13’’E, 1164 m, 22.IV.2005, fl., Andriamijaharivo et al. 577 ( MO) GoogleMaps ; Fkt. Andranofotsy , 15°25’14’’S 49°48’51’’E, 140 m, 14.VII.2002, fr., Antilahimena et al. 1139 ( MO, P) GoogleMaps ; Fkt. Ampitambe, Ambatovy, Andranovery , 18°52’43’’S 48°17’38’’ W, 1010 m, 10.VI.2009, fl., Antilahimena et al. 7110 ( G, K, MO, P) GoogleMaps ; Andapanomby, près de la rivière Ampandisanana , Makira NW, 15°21’48’’S 49°07’06’’E, 25.IV.2007, fr., Bernard & Birkinshaw 462 ( G, MO, P) GoogleMaps ; Nosy Mangabé, 15°30’S 49°45’E, 17.IV.1988, fl. & fr., Leeuwenberg 13933 ( MO, P) GoogleMaps ; confluence de l’Onive et du Mangoro , 600 m, IX.1926 [?], fl., Perrier de la Bâthie 17012 ( P) ; entre Moango et Antanamarina , 17°33’57’’S 48°53’58’’E, 740 m, 27.X.2000, fr., Randrianjanaka et al. 586 ( MO, P) GoogleMaps ; entre Manakambahiny Est et Nonokambo , 17°45’34’’S 48°42’04’’E, 7.III.2001, fl. & fr., Randrianjanaka et al. 606 ( MO, P) GoogleMaps ; RN I [ Betampona ], 20.III.1952, fl., Réserves Naturelles 3668 ( MO, P [2 sheets]) ; Nosy Mangabe , 15°30’S 49°46’E, 0-330 m, 13-23. IV.1988, fl., Schatz & Gentry 2055 ( MO, P) GoogleMaps ; Bassin de la Manonga ( effluent [rive gauche] de la Rantabe ), env. de Sahajinja , 700 m, 5.III.1954, fl., Service Forestier 9107 ( P) . Prov. Toliara: Fkt. Antsotso, Ivohibe forest , 24°34’10’’S 47°12’37’’E, 41 m, 24.V.2006, fr., Antilahimena et al. 4835 ( P) GoogleMaps ; Andohahela [NP], parcelle 1 , Eminiminy , 24°40’S 46°48’E, 200-700 m, 4-24.V.1993, fr., Randriamampionona 309 ( MO, P) GoogleMaps ; ibid. loco, 4-24.V.1993, fl., Randriamampionona 376 ( MO, P) ; Imonty , 3.VIII.1955, fr., Service Forestier 13942 ( P) .


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