A synoptic revision of the Malagasy endemic genus Socratina Balle (Loranthaceae). Callmander, M. W. I. Luino S. Da-Giau C. Rakotovao L. Gautier Candollea 2014 69 1 65 73 4XYT7 Balle Balle Magnoliopsida Loranthaceae Socratina Plantae Santalales 3 68 Tracheophyta species keraudreniana     Typus: MADAGASCAR. Prov.Toliara: Gorges du Fiherenana, entre Beanty et Anjamala, [ 22°57’S 44°19’E],  30- 300 m,  I.1947, fl.,   Humbert19902( holo-: P[ P05447658]!;  iso-: [ P05447656,  P05447657,  P05447660,  P05447661]!).   Conservation status. –With an EOO of 34,514 Km², and an AOO of 108 km² and nine subpopulations, two of which are within the protected area network (Beza Mahafaly and Tsimanampetsotsa) and one occurs in a proposed protected area which currently benefits from only temporary protection (Mikea Forest),  S. keraudrenianais assigned a preliminary status of Least Concern (LC) following IUCN Red List Categories and Criteria ( IUCN, 2012).   Notes. –  Socratina keraudrenianais unique in the genus in having the corolla tube not splitting unilaterally at anthesis but rather divided into five lobes in the distal part only, thus the tube is much longer than the corolla lobes ( BALLE, 1964a; Fig. 2A). The species is known from the south-western part of Madagascarin dry deciduous forests and xerophyte scrub, sometimes on limestone. Despite being a rather widely collected species, only two different hosts have been documented:  Grewiasp. ( Malvaceae) (Du Puy & al. 699)and  Mimosa delicatulaBaill. (Leguminosae) (Phillipson 2595) .   Additional material examined. –   MADAGASCAR. Prov. Toliara: Ampanihy vers la Linta, 24°53’S 44°23’E,  I.1999, fl.,  Allorge2304( P[ P00156506]);   30 kmde Tuléar, [ 23°16’S 44°00’E],  II.1962, fr.,  Bosser15660( MO, P[ P05447665, P05447666], TAN); ca.  2 kmN of Itampolo on route to Lavavolo,  10 m, 24°39’S 43°58’E,  8.II.1990, fl.,  Du Puy & al. 630( K, P[ P00075257], TAN);  Forest of Mikeac.  3 kmN of Beroroha,  60 m, 22°52’54”S 43°33’25”E,  8.II.1990, fl.,  Du Puy, Labat& Comtet699( K, P[ P016795], TAN);  Env. Lac Tsimanampetsotsa( SO),  30 m, [ 24°07’30”S 43°47’00”E],  24.XI.1960, fl.,  Leandri& Saboureau4023( P[ P05447651, P05447654]);  Env. Lac Tsimanampetsotsa( SO),  30 m, [ 24°07’30”S 43°47’00”E],  24.XI.1960, fl.,  Leandri& Saboureau4034( P [P05447652]);   40 kmau env. de Tuléar,  300 m, [ 23°10’S 44°04’E],  II.1962, fl.,  Keraudren1368( P[ P05447662]);  Fiherena, [ 22°57’30”S 44°19’00”E],  8.XII.1967, fl.,  Koechlin10( P[ P05447663]);  Beza MahafalyRS,  160 m, 23°40’S 44°36’E,  19.XI.1987, fl.,  Phillipson2595( MO, P[ P05447653], TAN);  Betaimboraky,  120 m, 22°44’12”S 43°31’17”E,  11.XI.1998, fl.,  Rakotomalaza& Messmer1816( G, MO, P[ P0544 7655]);  Forêt de Mikea, axe Belo-Ankilimihavotse,  0-50 m, 22°05’S 43°22’E,  30.I.2000, fl.,  Ranaivojaona & al.280( MO, P[ P05447543], TAN);  Makay, forêt Akolitsika,  238 m, 21°40’04”S 44°59’45”E, 2 2.I.2011, buds,  Razakamalala6136( MO, P, TAN). 3461734310 1947-01 P Humbert Madagascar 165 -22.95 Gorges du Fihere- nana, entre Beanty et Anjamala 1258 44.316666 3 68 P05447658] 2 Prov. Toliara holotype 3461734305 [140,328,1496,1520] P 3 68 P05447656 1 isotype 3461734306 [334,461,1496,1520] P 3 68 P05447657 1 isotype 3461734309 [467,593,1496,1520] P 3 68 P054476601 1 isotype 3461734302 [600,753,1496,1520] P 3 68 P05447661 1 isotype 3461734324 1999-01 1999-01 1962-02 P Allorge Madagascar -23.266666 Ampanihy vers la Linta 1256 44.0 Ampanihy vers la Linta 3 68 P00156506 1 Prov. Toliara 3461734312 1962-02 1999-01 1962-02 MO, P, TAN Bosser Madagascar -23.266666 Ampanihy vers la Linta 1256 44.0 Ampanihy vers la Linta 3 68 P00156506 1 Prov. Toliara 3461734313 1990-02-08 K, P, TAN Du Puy & al 10 -24.65 1250 43.966667 3 68 1 3461734308 1990-02-08 K, P, TAN Du Puy & Labat & Comtet 60 -22.881666 Forest of Mikea 21 43.556942 Forest of Mikea 3 68 P016795 1 3461734325 1960-11-24 SO, P Leandri & Saboureau 30 -24.125 Env. Lac Tsimanampetsotsa 21 43.783333 Env. Lac Tsimanampetsotsa 3 68 P05447651 1 3461734320 1960-11-24 SO, P Leandri & Saboureau 30 -24.125 Env. Lac Tsimanampetsotsa 21 43.783333 Env. Lac Tsimanampetsotsa 3 68 [P05447652 1 3461734303 1962-02 P Keraudren 300 -23.166666 1256 44.066666 3 68 P05447662 1 3461734311 1967-12-08 1987-11-19 1967-12-08 P, MO, TAN Koechlin 160 -23.666666 Beza Mahafaly 1254 44.6 Fiherena 3 68 P05447663, Phillipson, P05447653 1 3461734317 1967-12-08 1987-11-19 1967-12-08 P, MO, TAN Koechlin 160 -23.666666 Beza Mahafaly 1254 44.6 Fiherena 3 68 P05447663, Phillipson, P05447653 1 3461734304 1998-11-11 G, MO, P Rakotomalaza & Messmer 120 -22.736668 Betaimboraky 21 43.52139 Betaimboraky 3 68 P0544 7655 1 3461734314 2000-01-30 MO, P, TAN Ranaivojaona & al. 25 -22.083334 axe Belo-Ankilimihavotse 1261 43.366665 Foret de Mikea 3 68 P05447543 1 3461734301 2 2. I. 2011 MO, P, TAN Razakamalala 238 -21.667778 foret Akolitsika 21 44.995834 Makay 3 68 1