Menonvillea cicatricosa (Phil.) Rollins (1955: 10)

Salariato, Diego L., Zuloaga, Fernando O. & Al-Shehbaz, Ihsan A., 2014, A revision of the genus Menonvillea (Cremolobeae, Brassicaceae), Phytotaxa 162 (5), pp. 241-298 : 261

publication ID	https://doi.org/ 10.11646/phytotaxa.162.5.1
persistent identifier	https://treatment.plazi.org/id/03EF87C8-0141-A449-029D-FF76FC6EFFD0
treatment provided by	Felipe
scientific name	Menonvillea cicatricosa (Phil.) Rollins (1955: 10)
status

Treatment

1. Menonvillea cicatricosa (Phil.) Rollins (1955: 10) View in CoL . Hexaptera cicatricosa Philippi (1862b: 442) . Type:— CHILE. [Región del Maule]. Prov. del Maule, San José, 1861–1862, G. Volkmann s.n. (holotype SGO 63959!; isotype GH!).

Suffrutescent perennials, chamaephytes, with woody, profusely branched caudex base. Stems 7−35 cm, erect to ascending, stramineous, glabrous or sparsely pilose with simple, terete, antrorse trichomes to 0.7 mm long, covered with persistent petiolar bases. Leaves petiolate, not rosulate; petiole persistent, becoming stramineus; blade entire, spatulate to obovate, fleshy, 10−18 × 4−8(−10) mm, glabrous or sparsely to densely pilose, base cuneate to attenuate, margin entire, apex acute, commonly abruptly sharp pointed. Racemes terminal, ebracteate, corymbose, elongated in fruit, 3−8 cm long; rachis pilose or glabrescent, straight; fruiting pedicels divaricate-ascending, straight, (0.9−)1.3−1.4(−2) cm long, usually pilose. Sepals oblong, 2.5−3.5(−4) × 1−2.5 mm, sparsely pilose, somewhat spreading, not saccate, caducous, margin scarious; petals creamy white, spatulate to broadly so, 4−6 × 1−2.5 mm, with a distinct claw glabrous at base; stamens slightly tetradynamous; filaments free, dilated at base, glabrous, 2−3.3 mm long; anthers narrowly oblong, 1.5−1.6 mm long; nectar glands confluent, surrounding bases of all filaments. Fruits subglobose, glabrous; valves 3-winged, conspicuously veined, frequently with 1 valve reduced; developed valve 12−16 × 10−14 mm; wings 2.5−3.5 mm wide, straight or slightly undulate; gynophore 2− 4 mm long; style 2.5−4(–6) mm long; stigma capitate, entire. Seeds 4−4.5 × 2.5−3 mm, wingless; cotyledons accumbent.

Distribution and habitat:— Menonvillea cicatricosa grows in Chile (VI Libertador O´Higgins and VII Maule) and Argentina, just across the border in Mendoza. The species is found in rock crevices and roadside rocky banks of mountains at 1800−2800 m ( Fig. 12A View FIGURE 12 ).

Phenology:— Flowers mainly from November to March.

Taxonomic notes:— Menonvillea cicatricosa is easily distinguished by its suffruticose habit, persistent petiolar bases, entire and non-rosulate leaves, and glabrous, 3-winged fruit valves. It is morphologically related to M. macrocarpa , from which it is distinguished by the suffruticose (vs. herbaceous) habit, persistent (vs. caduceus) petiolar bases, and pubescent (vs. glabrous) fruits.

Representative Specimens:— ARGENTINA. Mendoza: Depto. Malargüe, Mirador de Valle Hermoso , 28 January 2004, Prina et al. 2395 ( SI) . CHILE. VI Libertador O´Higgins: Prov. Colchagua, Com. San Fernando, Cordillera Tinguiririca , January 1930, Pirión 138 ( CONC). VII Maule: Prov. Curicó, Com. Romeral, a orillas de la Laguna de Teno , 10 March 1967, Marticorena & Matthei 906 ( CONC) .