Protorhus ditimena var. minutifolia H. Perrier in Mém. Mus. Natl. Hist. Nat. 18: 261. 1944
Taxonomic treatment of Abrahamia Randrian. & Lowry, a new genus of Anacardiaceae from Madagascar
Randrianasolo, Armand
Lowry II, Porter P.
Schatz, George E.
Boissiera
2017
2017-12-27
71
1
152
8LKK
Randrian. & Lowry
Randrian. & Lowry
2017
[500,1042,380,408]
Magnoliopsida
Anacardiaceae
Abrahamia
Plantae
Sapindales
101
101
Tracheophyta
species
minutifolia
sp. nov.
– Protorhus ditimenavar. minutifoliaH. Perrierin Mém. Mus. Natl. Hist. Nat. 18: 261. 1944[nom. inval.].
Typus: MADAGASCAR. Prov.Toamasina:Rég. Alaotra-Mangoro, Moramanga, AnalamazaotraRS, “carrière de sable”, [ 18°56’S 48°26’E], 900-950 m, 29.X.1996, fl., A. Randrianasolo516(holo-: MO- 04895273!; iso-: G!, K!, P[ P06169142]!, TAN[ TAN002000]!)
Diagnosis Abrahamia minutifolia Randrian. & Lowrycan be distinguished by having leaves that are smaller (1-3 3 0.9-1.8 cm) than any other member of the genus and fruits that are among the smallest (1-1.5 3 0.5-0.8 cm).
Description Trees 3.5-12 mtall, 11.9-40 cmDBH, bark with translucid latex; young twigs waxy, lenticellate, with short, red, appressed indument at the tip. Leavessubopposite; blades, obovate, 1.8-4 3 0.9-1.8 cm, subcoriaceous to coriaceous, apex emarginate, retuse, or rounded, margin entire, base acute, adaxial surface glabrous, abaxial surface with very sparse appressed reddish indument when young, glabrescent, venation craspedodromous, midvein prominent below, secondary veins 15-20 pairs, 0.5-2 mmapart, prominent on both surfaces, tertiary veins raised on both surfaces; petiole 3-8 mmlong, canaliculate on adaxial surface, reddish pubescent when young, later glabrescent. Inflorescenceaxillary or terminal, a thyrse, 1-3 cmlong, axes somehow flattened, with ferruginous indument. Maleand female flowers4- or 5-merous; pedicel 0.2-0.3 mmlong, pubescent; calyx lobes deltate, 1 3 1 mm, imbricate, glabrous, persistent on fruit; corolla lobes ovate, 2-2.2 3 1-1.5 mm, imbricate, adaxial surface glabrous, abaxial surface pubescent; stamens 4 or 5. Male flowerswith filaments 1-1.5 mmlong, glabrous, white, anthers c. 0.8 mmlong, obloid to slightly ovoid, yellow, glabrous; disk cupuliform, c. 1 mmin diam., glabrous; ovary rudimentary. Female flowerswith filaments 0.3-0.5 mmlong, glabrous to slightly pubescent, white, anthers c. 0.5 mmlong, subglobose to ovoid, sterile, yellow, glabrous; disk c. 1.5 mmin diam., glabrous; ovary widely to very widely ovoid, c. 1.5 3 1 mm, pubescent, placentation subapical; style shortly trifid, subapically to apically inserted, 0.5 mmlong, partly pubescent, stigmas capitate. Fruits1-1.5 3 0.5-0.8 cm, ellipsoid, slightly asymmetrical, surface velutinous, with longitudinal striations.
Distribution, ecology and phenology Abrahamia minutifoliahas been collected primarily in premontane forest along Madagas-car’s eastern escarpment at an elevation of c. 900 mand in central high elevation forest at c. 1500 m, but it also occurs in humid forests in both the eastern and northwestern parts of the island ( Map 7). It flowers between September and November, and fruits have been collected from November to April.
Conservation status With an EOO of 117,262 km 2, a minimum AOO of 84 km 2, and 21 known localities, with subpopulations in at least 5 protected areas (Ambohitantely, Kalabenono, Maso-ala, Manongarivo, and Analamazaotra-Perinet), A. minutifoliais assigned a preliminary conservation status of “Least Concern” [LC] using the IUCN Red List Categories and Criteria ( IUCN, 2012).
Notes Abrahamia minutifoliais part of a group of species, along with A. delphinensis, A. diti-mena, A. itremoensis, A. lenticellataand A. sericea, that has velutinous fruits, but is distinguished by its thyrsiform (vs paniculate) inflorescence and smaller fruits (1-1.5 30.5-0.8 vs 2-3-2.5 3 1.2-1.4 cmin A. delphinensis, 2-3 3 1.4-1.6 cmin A. ditimena, 1.5-2.3 3 1.2-1.5 cmin A. itremoensis, 2-2.6 3 1.3-1.5 cmin A. lenticellataand 2-3 3 0.8-1.3 cmin A. sericea). The name Protorhus ditimenavar. minutifolia, published by PERRIER DE LA BâTHIE (1944) on the basis of a fragmentary specimen (Louvel 21),is invalid because it lacked a Latin diagnosis, as required for all names published between 1 January 1935and 31 December 2011under Article 39.1 of the International Code of Nomenclature ( MCNEILL et al., 2012). We have chosen to retain Perrier de la Bâthie’s epithet, which aptly characterizes this taxon, by formally describing it as a new species.
Paratypi MADAGASCAR. Prov. Antananarivo: Ankazobe, AmbohitantelyRS, 18°11’S 47°17’E, 1620 m, 14.I.1997, fl., Randrianaivo et al.53( G, K, MO, NY, P, TAN, WAG); forest E of Anjozorobe, E Antsahabe village, [ 18°22’S 47°47’E], 1400 m, 22.X.1996, fl., A. Randrianasolo508( MO, P, TAN); AmbohitantelyRS, 18°10’42’’S 47°17’00’’E, 1530 m, 23-24.XI.1993, fl., Schatz et al.3565( G, K, MO, P, TAN); ibid. loco,[ 18°09’S 47°14’E], V.1953, fr., Service Forestier7361( P, TEF); ibid. loco, [ 18°08’S 47°16’E], 1600 m, IV.1953, fr., Service Forestier8417( P, TEF); ibid. loco, 26.VII.1954, ster., Service Forestier11-R-282( P, TEF); Poste forestier Manankazo, Ankazobe, [ 18°09’S 47°14’E], 22.VI.1955, fr., Service Forestier16814( P, TEF). Prov. Antsiranana: Ambanja, Bekolosy, 14°02’S 48°18’E, 1200 m, 28.III.1996, fr., Gautier& Be2909( G, MO, P, TAN, TEF); ibid. loco, 14°02’S 48°18’E, 1070 m, 23.IX.1996, fl., Gautier et al.3123( G, MO, P, TAN, TEF); Ambilobe, forêt de Kalabenono, 13°38’45’’S 48°40’45’’E, 934 m, 27.XI.2006, fr., Callmander et al.631( G, MO); Andapa, Doany, forêt d’Andramanalana, 14°23’02’’S 49°21’36’’E, 1280 m, IV.2006, fr., Rakotovao et al.3074( G, MO, P, TAN); Andramilolo, SE Anjanaha-ribe, 14°19’43’’S 49°18’08’’E, 1412 m, 12.XI.2006, fl., Razakamalala et al.2939( G, MO, P, TAN). Prov. Fianarantsoa: Tolongoina, Andrambavato, 2 kmS Tatamaly, 21°30’S 47°24’E, 1075 m, 13.X.2000, fl., Randriatafika142( G, K, MO, P, TAN). Prov. Toamasina: Alaotra-Mangoro, Ambatovy, Analamay, 18°48’28’’S 48°20’10’’E, 1083 m, 2.XII.2005, fl., Antilahimena et al.4316( G, MO, P, TAN); ibid. loco, fl., Anti-lahimena et al.4318( G, MO, P, TAN); Moramanga, Ambatovy/ Andranovery forest, 18°52’09’’S 48°18’15’’E, 1013 m, 26.X.2007, fl., Antilahimena5937( G, MO, P, TAN); Analamazaotra, IX.1925, bud, Louvel21( P); Maroantsetra, MasoalaPN, E slope of Ambohitsitondroinan’Mahalevona summit, 15°25’34’’S 49°57’22’’E, 1160 m, 25.II.2003, fr., Lowry et al.6190( G, K, MO, P, TAN, WAG); along road to Lakato, 18 kmS of RN2, 19°04’06’’S 48°22’01’’E, 1050 m, 17.X.2004, fl., Lowry et al.6547( G, MO, P, TAN); Ambatovy, Analamay, 18°49’26’’S 48°20’16’’E, 1000 m, 26.I.1997, fr., Rakotomalaza et al.1005( MO, P, TAN); Analamazaotra, 950 m, 29.X.1996, fl., A. Randrianasolo515( G, MO, P, TAN); MantadiaPN, c. 11 kmN of village of Andasibe, 18°49’47’’S 48°25’56’’E, 939 m, 10.I.2003, ster., A. Randrianasolo781( MO, P, TEF); Ambatovy, 18°49’28’’S 48°19’23’’E, 1134 m, 26.XI.2005, bud, Razafindraibe135( MO, P, TAN); Analamazaotra-Périnet, [ 18°56’S 48°26’E], 6.XI.1957, bud, Service Forestier18400( G, K, MO, NY, P[2 sheets]); Ankazomanitra, PK 45, route Anosi-be-Moramanga, [ 19°58’S 48°08’E], 6.XI.1968, bud, Service Forestier26800( G, MO, NY, P, TEF); W d’Antanandava(PK 45 Moramanga-Anosibe), [ 19°08’S 48°15’E], XI.1968, fl., Service Forestier28453( G, MO, P, TEF); ibid. loco, XI.1968, bud & fl., Service Forestier28454( G, MO, NY, P, TEF).
4026984690
1996-10-29
MO-
A. Randrianasolo
Madagascar
925
-18.933332
Alaotra-Mangoro
1273
48.433334
101
101
04895273
1
Prov. Toamasina
holotype
4026984635
[785,1368,801,828]
1996-10-29
G, K, P, TAN
Analamazaotra RS
Madagascar
925
-18.933332
Toamasina
1273
48.433334
101
101
P06169142, TAN002000
1
Toamasina
isotype
4026984633
1997-01-14
G, K, MO, NY, P, TAN, WAG
Randrianaivo et al.
Madagascar
1620
-18.183332
Ankazobe
1276
47.283333
103
103
1
Prov. Antananarivo
paratype
4026984942
1996-10-22
MO, P, TAN
A. Randrianasolo
Madagascar
1400
-18.183332
Antsahabe village
1276
47.283333
103
103
1
Antananarivo
paratype
4026984552
1996-10-22
G, K, MO, NY, P, TAN, WAG, E
Ambohitantely RS
Madagascar
1530
-18.183332
Ambohitantely
1276
47.283333
103
103
1
Antananarivo
paratype
4026984984
[733,1473,1249,1277]
1993-11-23
1993-11-24
1993-11-23
G, K, MO, P, TAN
Schatz et al.
Madagascar
1530
-18.15
1276
47.233334
103
103
1
paratype
4026984920
[454,1349,1286,1314]
1953-05
1993-11-24
1993-11-23
P, TEF
Service Forestier
Madagascar
Poste
1530
-18.15
Ankazobe
1276
47.233334
Manankazo
103
103
1
paratype
4026984876
1953-04
1993-11-24
1993-11-23
P, TEF
Service Forestier
Madagascar
Poste
1600
-18.15
Ankazobe
1276
47.233334
Manankazo
103
103
1
paratype
4026984792
1954-07-26
1993-11-24
1993-11-23
P, TEF
Service Forestier
Madagascar
Poste
1530
-18.15
Ankazobe
1276
47.233334
Manankazo
103
103
1
paratype
4026984464
1955-06-22
1993-11-24
1993-11-23
P, TEF
Service Forestier
Madagascar
Poste
1530
-18.15
Ankazobe
1276
47.233334
Manankazo
103
103
1
Antsiranana
paratype
4026984760
1996-03-28
1993-11-24
1993-11-23
G, MO, P, TAN, TEF
Gautier & Be
Madagascar
Poste
1200
-18.15
Bekolosy
1276
47.233334
Ambanja
103
103
1
Prov. Antsiranana
paratype
4026984771
1996-09-23
1993-11-24
1993-11-23
G, MO, P, TAN, TEF
Gautier et al.
Madagascar
Poste
1070
-18.15
Ankazobe
1276
47.233334
Manankazo
103
103
1
Antsiranana
paratype
4026984808
1928392940
2006-11-27
G, MO
Callmander et al.
Madagascar
Andapa
934
http://sweetgum.nybg.org/science/vh/specimen_details.php?irn=1410299
-13.645833
Ambilobe
21
48.67917
Doany
103
103
1
paratype
4026984360
1996-09-23
G, MO, P, TAN, TEF
Gautier & de Kalabenono
Madagascar
Andapa
1280
-13.645833
d'Andramanalana
21
48.67917
Doany
103
103
1
paratype
4026984314
2006-11-12
Pubescent: with various types of short and soft trichomes (e.g., A. turkii Randrian. & Lowry).
G, MO, P, TAN
Razakamalala et al.
Madagascar
Prov.
1412
-14.328611
Andramilolo
21
49.302223
Tolongoina
103
11
1
Fianarantsoa
paratype
4026984524
2000-10-13
Pubescent: with various types of short and soft trichomes (e.g., A. turkii Randrian. & Lowry).
G, K, MO, P, TAN
Randriatafika
Madagascar
Prov.
1075
-21.30
Andrambavato
21
47.24
Tolongoina
103
11
1
Prov. Fianarantsoa
paratype
4026984855
2000-10-13
Pubescent: with various types of short and soft trichomes (e.g., A. turkii Randrian. & Lowry).
G, K, MO, P, TAN
Randriatafika
Madagascar
Prov.
1075
-14.328611
Andrambavato
21
49.302223
Tolongoina
103
11
1
Prov. Fianarantsoa
paratype
4026984666
2006-04
Pubescent: with various types of short and soft trichomes (e.g., A. turkii Randrian. & Lowry).
G, MO, P, TAN
Antilahimena et al.
Madagascar
Prov.
1412
-14.328611
21
49.302223
Tolongoina
103
11
1
Fianarantsoa
paratype
4026984933
2007-10-26
Pubescent: with various types of short and soft trichomes (e.g., A. turkii Randrian. & Lowry).
G, MO, P, TAN
Antilahimena
Madagascar
Moramanga
1013
-14.328611
Andranovery forest
21
49.302223
Ambatovy
103
11
1
Fianarantsoa
paratype
4026984875
[454,1018,1921,1949]
1925-09
Pubescent: with various types of short and soft trichomes (e.g., A. turkii Randrian. & Lowry).
P
Louvel
Madagascar
Prov.
1412
-14.328611
Analamazaotra
21
49.302223
Tolongoina
103
11
1
Fianarantsoa
paratype
4026984667
2003-02-25
Pubescent: with various types of short and soft trichomes (e.g., A. turkii Randrian. & Lowry).
G, K, MO, P, TAN, WAG
Lowry et al.
Madagascar
Prov.
1160
104
104
-14.328611
Masoala
21
49.302223
Tolongoina
103
11
1
Maroantsetra
paratype
4026985057
2004-10-17
Pubescent: with various types of short and soft trichomes (e.g., A. turkii Randrian. & Lowry).
G, MO, P, TAN
Lowry et al.
Madagascar
Prov.
1050
-14.328611
Lakato
21
49.302223
Tolongoina
104
11
1
Fianarantsoa
paratype
4026984378
1997-01-26
Pubescent: with various types of short and soft trichomes (e.g., A. turkii Randrian. & Lowry).
MO, P, TAN
Rakotomalaza et al.
Madagascar
Prov.
1000
-14.328611
Analamay
21
49.302223
Tolongoina
104
11
1
Ambatovy
paratype
4026985008
1996-10-29
Pubescent: with various types of short and soft trichomes (e.g., A. turkii Randrian. & Lowry).
G, MO, P, TAN
A. Randrianasolo
Madagascar
Prov.
950
-14.328611
Analamazaotra
21
49.302223
Tolongoina
104
11
1
Analamazaotra
paratype
4026984806
2003-01-10
Pubescent: with various types of short and soft trichomes (e.g., A. turkii Randrian. & Lowry).
MO, P, TEF
A. Randrianasolo
Madagascar
Prov.
939
-14.328611
Mantadia
21
49.302223
Mantadia
104
11
1
Fianarantsoa
paratype
4026984610
2005-11-26
Pubescent: with various types of short and soft trichomes (e.g., A. turkii Randrian. & Lowry).
MO, P, TAN
Razafindraibe
Madagascar
Prov.
1134
-14.328611
Ambatovy
21
49.302223
Tolongoina
104
11
1
Ambatovy
paratype
4026984373
1957-11-06
Pubescent: with various types of short and soft trichomes (e.g., A. turkii Randrian. & Lowry).
G, K, MO, NY, P
Service Forestier
Madagascar
Prov.
1412
-14.328611
Analamazaotra-Perinet
21
49.302223
Tolongoina
104
11
1
Analamazaotra-Perinet
paratype
4026984967
1968-11-06
Pubescent: with various types of short and soft trichomes (e.g., A. turkii Randrian. & Lowry).
G, MO, NY, P, TEF
Service Forestier
Madagascar
Prov.
1412
-14.328611
Ankazomanitra
21
49.302223
Tolongoina
104
11
1
Ankazomanitra
paratype
4026985044
2006-04
Pubescent: with various types of short and soft trichomes (e.g., A. turkii Randrian. & Lowry).
G, MO, P, TAN
Rakotovao & SE Anjanaharibe
Madagascar
Prov.
1412
-14.328611
d'Antanandava
21
49.302223
Tolongoina
104
11
1
Fianarantsoa
paratype
4026984377
1968-11
G, MO, NY, P, TEF
Service Forestier
-19.133333
Service Forestier
1273
48.25
104
104
1
paratype