Menonvillea flexuosa Philippi (1872: 674)

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 : 274-275

publication ID

https://doi.org/ 10.11646/phytotaxa.162.5.1

persistent identifier

https://treatment.plazi.org/id/03EF87C8-0174-A47F-0297-FB85FE9CF8D8

treatment provided by

Felipe

scientific name

Menonvillea flexuosa Philippi (1872: 674)
status

 

14. Menonvillea flexuosa Philippi (1872: 674) View in CoL . Type:— CHILE. [Región Metropolitana]. Prov. Santiago, Valle del Yeso, January 1866, R. A. Philippi s.n. (holotype SGO 63980!; isotypes CONC 61870 View Materials !, SGO 63980, fragm. in GH!, B!, K!, LE!) .

Menonvillea crassa Rollins (1955: 45) View in CoL . Type:— CHILE. [Región de Coquimbo]. Ovalle, Limari , Fray Jorge , November 1925, E. Werdermann 896 (holotype GH!; isotypes CAS 142894 About CAS !, E!, F 59103 View Materials !, G!, K!, LIL 53554!, SI 47248 !, 47249!, U!, UC 289283!).

Menonvillea falcata Reiche (1895: 85) View in CoL . Type:— CHILE. Salto de Agua , 7 December 1879, R. A. Philippi s.n. (holotype SGO 63978!) .

Menonvillea flexuosa Phil. f. tomentosa Gilg & Muschler (1909: 441) . Type :— CHILE. [Región Metroplitana]. Santiago, R. A . Philippi s.n. (holotype in B destroyed; lectotype here designated CORD!)

Perennials with thick, woody caudex. Stems 20−40(−60) cm, erect to decumbent, several from base, simple or branched, slightly to strongly flexuous above, densely floccose to glabrescent, with slender, simple or more frequently branched trichomes to 0.4 mm long. Leaves not rosulate, sessile; blade narrowly linear, fleshy, 3−5(−10) cm × 0.8−2 mm, subterete, trifid or undivided, entire, glabrous or densely pubescent. Racemes terminal or axillary, ebracteate, corymbose, elongated considerably in fruit, 4−12 cm long; rachis glabrous to glabrescent, often flexuous; fruiting pedicels divaricate-ascending, straight, 2−4(–6) mm long, glabrous or sparsely pubescent with slender, arachnoid trichomes. Sepals narrowly oblong, (3−)4−6 × 1−1.5(−2) mm, glabrous, erect, subsaccate at base, caducous, margin membranous; petals yellowish, narrowly spatulate to nearly linear, (5−)6−8(−11) × 0.8− 1.2(−2) mm, minutely papillate at base; stamens tetradynamous; filaments free, erect, papillate and not dilated at base, 3−5(−6) mm long; anthers oblong, 0.8−1.4 mm long; nectar glands confluent, low, not petaloid. Fruits globose, glabrous; valves 2-winged, 4−5(−7) × 4−5(−6) mm, with a prominent midvein, callus absent, glabrous or with few papillae on dorsal surface; wings (0.7−) 1−1.5 mm wide; gynophore 0.5−1.8 mm long; style 1−2(−3) mm long; stigma slightly decurrent. Seeds ovate, 2−3 × 1.3−2.5 mm, wingless, compressed; cotyledons obliquely incumbent.

Distribution and habitat:— Menonvillea flexuosa is endemic to Chilean regions III (Atacama), VI (Coquimbo), V (Valparaíso), and Metropolitana de Santiago, where it grows on steep rocky slopes from coastal areas to the Andes at high elevations to 3700 m ( Fig. 13D View FIGURE 13 ).

Phenology: —Flowers from September till January.

Taxonomic notes: — Rollins (1955) recognized Menonvillea crassa and M. flexuosa as different species based mainly having in the former of straight (vs. flexuous) stems and rachis and stout, slightly recurved (vs. slender, ascending) fruiting pedicles. However, these characters are unreliable because the type collection of M. crassa has flexuous stems and rachis and slender, recurved pedicels. The presence of several leaves at each node in M. crassa results from abnormal growth induced by fungal or insect infestations, and these observations were noted by Rollins (1955). Although the type collection of M. crassa has longer leaves and slightly larger flowers and fruits, it is indistinguishable from M. flexuosa in all other aspects. Therefore, M. crassa is reduced herein to synonymy of M. flexuosa .

Rollins (1955) reduced Menonvillea falcata Reiche to synonymy of M. linearis DC. However , a critical examination of its type shows that it is a synonym of M. flexuosa Phil.

Representative Specimens:— CHILE. III Atacama: Prov. Copiapó, Com. Copiapó, Copiapó , 20 September 1885, Mison-Gaste s.n. ( SGO 63973) . IV Coquimbo: Prov. Elqui, Com. Vicuña, Baños del Toro , 23 December 1971, Beckett et al. 4667 ( SGO) . V Valparaíso: Prov. Los Andes, Com. Los Andes, 3 km E del Río Blanco, en el lado opuesto Piscicultura, en pendientes paradas al lado Sur del Río Blanco , 13 December 1951, Hutchinson 181 ( CONC) ; Prov. Quillota, Com. Quillota, Cerro La Campana , ladera oeste, 30 November 1947, Bultmann s.n. ( CONC 21331 View Materials ) ; Prov. Valparaíso, Com. Valparaíso, Santo del Agua , no date, Philippi s.n. ( SGO 63978) . Región Metropolitana de Santiago: Prov. Santiago, Com. San Ramón, Salto de San Ramón , December 1879, Philippi 109- 6 ( SGO 68227) .

R

Departamento de Geologia, Universidad de Chile

A

Harvard University - Arnold Arboretum

SGO

Museo Nacional de Historia Natural

GH

Harvard University - Gray Herbarium

B

Botanischer Garten und Botanisches Museum Berlin-Dahlem, Zentraleinrichtung der Freien Universitaet

K

Royal Botanic Gardens

LE

Servico de Microbiologia e Imunologia

CORD

Universidad Nacional de Córdoba

V

Royal British Columbia Museum - Herbarium

E

Royal Botanic Garden Edinburgh

CONC

Universidad de Concepción

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Brassicales

Family

Brassicaceae

Genus

Menonvillea

Loc

Menonvillea flexuosa Philippi (1872: 674)

Salariato, Diego L., Zuloaga, Fernando O. & Al-Shehbaz, Ihsan A. 2014
2014
Loc

Menonvillea crassa

Rollins, R. C. 1955: )
1955
Loc

Menonvillea flexuosa Phil. f. tomentosa

Gilg, E. & Muschler R. 1909: )
1909
Loc

Menonvillea falcata

Reiche, C. 1895: )
1895
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