Lepidaploa pseudomuricata Robinson (1995: 395)

Marques, Danilo, Farco, Gabriela Elizabeth, Nakajima, Jimi Naoki & Dematteis, Massimiliano, 2018, The genus Lepidaploa (Vernonieae, Asteraceae) in southern South America, Phytotaxa 362 (2), pp. 115-142 : 129-131

8. Lepidaploa pseudomuricata Robinson (1995: 395) .

Type:— BRAZIL. Santa Catarina state, Serra da Boa Vista, São José , 700 m, 12 December 1990, R. Reitz & R. M. Klein 10614 (holotype US! [photo!]; isotypes HBR! LP). Figure 13 .

Erect subshrubs or shrubs 0.8–2 m tall; branches strigose, prominently ribbed. Leaves spirally alternate, cauline, internodes 2–5 cm long, petioles 0.4–1.3 mm long, blade 9.5–10.1 × 1.5–3.4 cm, membranaceous to chartaceous, rugose, lanceolate or oblong-lanceolate, apex acute to caudate, margins denticulate, base cuneate to attenuate, both strigose; venation eucamptodromous-reticulodromous. Capitulescence seriate-cymose with capitula sessile, paniculiform, 13.9–15.5 cm long, axis puberulent to strigose, whitish. Involucre campanulate, 6–7.2 mm in diam., phyllaries 3–4-seriate, chestnut, membranaceous, strigose, outer oval-lanceolate, apex apiculate, inner lanceolate, apex apiculate. Florets 19–23, corolla lilac or violet, tube 2.9–5.5 mm long, glabrous, lobes 2.6–3.9 mm long, lanceolate, apex glandular; apical anther appendages acute, glandular, lanceolate, base sagittate; basal stylar node narrow. Cypsela turbinate to obconic, 2.2–2.8 mm long, setose; carpopodium anullar. Pappus white.

Selected specimens examined — ARGENTINA. Misiones: San Pedro, Camino de tierra que une ruta provincial 17 con ruta nacional 14 a la altura de Piñalito Sur, 13 January 2007, H.A. Keller 3921 (CTES). BRASIL. Paraná: Antonina, Bairro Alto, 10 February 2006, G. Hatschbach 79554 (CTES). Santa Catarina: Bom Jardim da Serra, Fazenda Papagaios, 26 February 2011, M. Verdi 5909 (FURB). Rio Grande do Sul: Bom Jesus, Santo Inácio, 11 March 2005, G. Hatschbach 79077 (CTES).

Distribution and habitat —The species is restricted to the south of Brazil and is known in Argentina through a unique collection from the province of Misiones. Lepidaploa pseudomuricata inhabits fields and wetland regions but is commonly found on margins or under canopy of the Atlantic Rainforest ( Figure 14 ).

Phenology —The species blooms between April and December.

Notes —The species can be easily differentiated from the other species that occur in southern South America by glandular trichomes on its anthers, prominently ribbed branches, erect subshrubby or shrubby habit and narrow basal stylar node.

Figures

FIGURE 13. Lepidaploa pseudomuricata. A. Plant. B. Stem detail. C. Abaxial leaf surface detail. D. Abaxial leaf surface detail. E. Capitula. F. Cypsela and pappus. G. Floret. H. Style. I. Floret dissected with anther detail. J–L. Outer phyllaries. M–O. Inner phyllaries.

FIGURE 14. Geographical distribution of L. pseudomuricata (circle) in Cone Sur.