Benthamia spiraloides (Cordem.) Hermans & P.J.Cribb
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publication ID |
https://doi.org/10.5252/adansonia2025v47a11 |
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persistent identifier |
https://treatment.plazi.org/id/039B87AB-FF97-FFA2-2388-F7882899C778 |
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treatment provided by |
Plazi |
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scientific name |
Benthamia spiraloides (Cordem.) Hermans & P.J.Cribb |
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Benthamia spiraloides (Cordem.) Hermans & P.J.Cribb View in CoL
( Figs 90 View FIG ; 91 View FIG ; 92 View FIG )
Lankesteriana View in CoL 21 (2): 76 ( Hermans & Cribb 2021). — Habenaria spiraloides Cordem., Flore View in CoL de l’île de la Réunion ( Cordemoy 1895: 551). — Type: France, La Réunion • Plaine des Palmistes, Cordemoy s.n.; holotype: [not found] • Plaine des Palmistes, chemin vers l’îlet Patience; 21°06’S, 55°37’E; 1100 m; IV.2002; T. Pailler 48; neotype: REU[REU007939]!, designated by Hermans & Cribb (2021: 76). ETYMOLOGY. — Named for its similarity to what was once called Satyrium spirale Thouars , now Benthamia africana View in CoL .
PHENOLOGY. — July to March.
DISTRIBUTION AND ECOLOGY. — La Réunion and Madagascar. Terrestrial or epiphytic, in moss, in semi-shade. In Madagascar observed thriving on rotten Eucalyptus stumps, or on the ground in pine plantations. Between 1000 and 1900 m ( Fig. 93).
CONSERVATION. — This species has been provisionally quoted Vulnerable (VU) in La Réunion ( Hermans et al., 2023), where less than ten locations are known and its semi-shaded habitat among mossy rocks is threatened (criteria B1ab and B2ab). In Madagascar it is present in a number of reserves like Angavokely and Manongarivo and has probably been overlooked in a number of places. It can thrive in pine or Eucalyptus plantations and is therefore of Least Concern (LC).
ADDITIONAL SPECIMENS EXAMINED. — Madagascar • Diana, massif de Manongarivo; 14°00’00”S, 48°23’30”E; alt. 1200 m; IV.1909; H. Perrier 1944 bis; P [ P00094536 , P00094537 ] ! • Analamanga, Manjakandriana; 18°54’S, 47°48’E; VIII.1955; alt. 1200 m; J. Bosser 8292; P [ P00692224 ] ! • Analamanga, Lake Mantasoa GoogleMaps ; 19°00’45”S, 47°50’17”E; IX.1962; J. Bosser 16416; P [ P00692234 ] ! • Analamanga, Ankeramadinika, Ambatoloana; VI.1963; J. Bosser 16161; P [ P00692231 ] ! • Alaotra-Mangoro, route de Lakato; 19°11’30”S, 48°26’00”E; VIII.1963; J. Bosser 18523; P [ P00692244 ] ! • N25 , peu après le PK15 en venant de la N7 ; 17.VII.1969; Y. Veyret 1114; P [ P00692305 , P00692306 , P00692307 ] ! • Analamanga, Angavokely; 18°55’36”S, 47°45’07”E; 2. VI.1970; Y. Veyret 1303; P [ P05096694 ] ! • Analamanga, Angavokely; 18°55’36”S, 47°45’07”E; 27.VII.1970; Y. Veyret 1330; P [ P05096692 , P05096693 , P05096695 ] ! • Diana, Réserve spéciale de Manongarivo, chemin d’Ambalafary au vallon supérieur de la Bekolosy; 14°02’S, 48°18’E; alt. 840 m; 16. V.1995; L. Gautier et al. LG2668 ; P [ P00098891 ]!, K!, G!, WAG [ WAG.0388478] ! • Alaotra-Mangoro, Ambatovy; 18°50’51”S, 48°18’31”E; 21.X.2005; H. Razanantsoa et al. 579; P [ P02091795 ] ! • Alaotra-Mangoro, Andasibe, near Mantadia forest ; 1.X.2016; J. Hermans 8038; K ! • Alaotra-Mangoro, Moramanga, Maromizaha; alt. 1080 m; 18.VIII.2022; L. R. Rajaovelona 1402; K [ K001522047 ]!, TAN !.
France, La Réunion • Sur les montagnes; C. Richard 697; P [ P00738528 ] ! • sine loc.; L. H. Boivin s.n.; P [ P00738369 ] ! • sine loc.; J. Renz 13027; RENZ ! • sine loc.; 1837; C. Richard 397; P [ P00738529 ] ! • sine loc.; 1867; Herb. A. Richard R19908 ; W ! • Takamaka GoogleMaps ; 21°05’S, 55°38’E; 24. V.1974; J. Bosser 22049; P [ P00738522 ] ! • Bélouve forest ; alt. 1500 m; V.2003; M. Pignal et al. 2079; P [ P00340568 ]!, K!, MO ! • Plaine GoogleMaps des fougères; 21°00’15”S, 55°29’21”E; alt. 1200 m; 28. V.2003; T. Pailler TP 78; REU [ REU006450 View Materials , REU007938 View Materials ] ! • Piton GoogleMaps rouge, Plaine des Cafres; 21°09’S, 55°34’E; 1900 m; 9.III.2004; T. Pailler TP 164; REU ! • Bébour GoogleMaps , route forestière de Takamaka, sentier îlet à bananes; 21°05’54”S, 55°35’35”E; alt. 1200 m; 16. VI.2004; J. Fournel JF110 ; REU [ REU010244 View Materials , REU010245 View Materials , REU010246 View Materials ] ! • L’étang salé; 21°13’32”S, 55°22’09”E; alt. 1000 m; 5. VI.2005; V. Grondin 1796; CBNM ! • Plaine des Fougères GoogleMaps , sentier vers Be Massoune; 21°00’15”S, 55°29’21”E; alt. 1380 m; 29.IX.2005; J. Fournel JF306 ; REU [ REU010337 View Materials ] ! • Piton Marmite , Salazie; alt. 1850 m; 31.VII.2006; J. Fournel JF405 ; REU [ REU010388 View Materials ] !• Bébour GoogleMaps , sentier la rivière; 21°06’40”S, 55°33’47”E; alt. 1300-1350 m; 7. VI.2007; F. Martos FM128 and FM129 ; REU [ REU007895 View Materials , REU007897 View Materials ] ! • Dimitile GoogleMaps , sentier Bayonne; 21°13’10”S, 55°27’45”E; 15. VI.2008; F. Martos FM362 and FM363 ; REU [ REU007896 View Materials , REU007898 View Materials ] ! • Dimitile GoogleMaps , sentier Bayonne; 21°13’10”S, 55°27’45”E; 25.IV.2009; F. Martos FM623 ; REU [ REU007754 View Materials ] ! • sine loc.; XI.2017; ML04 ; CBNM ! • sine loc.; IX.2019; ML02 ; CBNM ! • Bébour forest GoogleMaps ; 21°06’40”S, 55°33’47”E; 15.XI.2019; J. Hermans 8365; K !.
NOTES
This species has long been overlooked in Madagascar, where it has been confused with Benthamia africana and Benthamia misera . Before the present study many specimens in herbaria were unidentified.
See also: Bernet (2010: 138, as Benthamia sp. 1 ), Szelengowicz & Tamon (2013: 243, as “ Benthamia dauphinensis H.Perrier ”), Hervouet (2018: 160, as Benthamia dauphinensis (Rolfe) Schltr. ), Hermans & Cribb (2023: 122).
DESCRIPTION
A slender epiphytic or terrestrial glabrous herb, 20-45 cm tall. Tubers 2-3, ovoid, roots fleshy and woolly. Stem c. 1 mm in diameter with 2 to 3 short basal sheaths. Leaves 1-3, cauline, narrowly ligulate or linear-lanceolate, acute, 7-14 × 0.5-1.5 cm, shortly petiolate, the second leaf c. 2-3 cm above the basal and shorter. Rachis spiral, 5-12 cm long, lax to dense, with 15-27 flowers, with 2 to 4 more or less leaf-like sheaths, often purplered.Floral bracts linear,acuminate-filiform 4-11 mm × 1-3 mm, brownish-red.Ovary disproportionately large, at first erect then divergent, with three longitudinal ridges, 5-11 × 1-2.7 mm, generally brownish purple.Flowers 2-4 mm in diameter, corolla almost tubular, generally with reddish-brown sepals, yellow petals, lip and spur; dorsal sepal cucullate, 3-veined, elliptic, obtuse, 1.5-3.2 × 0.6-1.4 mm; lateral sepals hardly spreading, forming a tube with the dorsal, 3-veined, obliquely oblong-ovate, obtuse, 1.3-3.1 × 0.8-3.1 mm, concave at the apex; petals lanceolate, subacute, 1.7-3.1 × 0.6-1.2 mm; lip barely trilobed, 1.8-3.1 × 0.9-1.8 mm, lateral lobes basal, small, rounded, midlobe thick, fleshy,about as long as the lateral lobes, the apex often incurved; spur scrotiform to subrectangular, often sub-bilobed-sacculate, the base funnel-shaped, 0.5-1 × 0.5-0.7 mm, twice as long as wide. Column with short auricles, less than 1/3 the size of the anther, anther retuse or obtusely apiculate.
| H |
University of Helsinki |
| P |
Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants |
| J |
University of the Witwatersrand |
| VI |
Mykotektet, National Veterinary Institute |
| Y |
Yale University |
| V |
Royal British Columbia Museum - Herbarium |
| L |
Nationaal Herbarium Nederland, Leiden University branch |
| K |
Royal Botanic Gardens |
| G |
Conservatoire et Jardin botaniques de la Ville de Genève |
| WAG |
Wageningen University |
| R |
Departamento de Geologia, Universidad de Chile |
| TAN |
Parc de Tsimbazaza |
| C |
University of Copenhagen |
| RENZ |
University of Basel |
| A |
Harvard University - Arnold Arboretum |
| W |
Naturhistorisches Museum Wien |
| M |
Botanische Staatssammlung München |
| MO |
Missouri Botanical Garden |
| T |
Tavera, Department of Geology and Geophysics |
| REU |
Université de la Réunion |
| CBNM |
Cedar Breaks National Monument |
| F |
Field Museum of Natural History, Botany Department |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.