Anthurium fontellanum Nadruz & Leoni

Hentz Júnior, Elmar J., Hammes, Janaine K., Camelo, Mel C., Coelho, Marcus A. N. & Temponi, Lívia G., 2021, Araceae from Serra do Brigadeiro State Park, Minas Gerais, Brazil, Phytotaxa 497 (3), pp. 229-246 : 234

Anthurium fontellanum Nadruz & Leoni in Coelho & Leoni (2004: 2) ( Fig. 2F–I ).

Terrestrial. Stem erect. Cataphylls and prophylls brown, marcescent. Petiole 7.0– 19.9 cm long, green, vinaceous at the base, abaxially obtuse, adaxially sulcate with obtuse angles, geniculum 1.0– 1.6 cm long. Leaf-blade 7.4–13 × 3.2–7.1 cm, green, slightly discolorous, perpendicular to the petiole, membranaceous, ovate, with a bullate surface, base cordate, apex obtuse-acuminate, absence of glandular dots. Midrib green, prominent, acute on both sides, primary lateral veins strongly engraved adaxially, strongly prominent abaxially, 4–7 on both sides, secondary and tertiary veins reticulate, basal vein 1, ending at the base of the posterior lobes, collective veins leaving from the base of the leaf blade, 0.5– 0.3 cm distant from the margin. Inflorescence. Peduncle 4.5–6.7 cm long, vinaceous, abaxially obtuse adaxially sulcate with obtuse angles. Spathe 1.5–2.9 × 0.3–0.4 cm, reddish. Spadix 1.1–3.8 cm long, homogeneous, reddish, cylindrical, tapered, stipe 0.2–1.6 cm long, cream-colored pollen grains, bisexual flowers, main spiral with 3 flowers, alternate spiral with 4 flowers, greenish unripe berries.

Distribution: — Anthurium fontellanum is endemic to Brazil, occurring in Minas Gerais and São Paulo ( Flora do Brasil 2020). It was found at the Pico do Boné, road to the Laje de Ouro, and Matipó trails (northern PESB).

Ecology and phenology: —Found in populations with 3–4 individuals at elevations ranging from 1588 to 1710 m in the Pico do Boné trail. However, in the Laje do Ouro trail, at lower elevations (1360 to 1460 m), large populations with 10–20 individuals were found ( Fig. 2F ). In the PESB, it was found with flowers in June and July.

Taxonomic notes: —Characterized by its bullated leaf blade and reddish spadix.

Specimens examined: — BRAZIL. Parque Estadual da Serra do Brigadeiro, Minas Gerais: Araponga, próximo ao pico Boné , 23 Jun 2004, M . Nadruz 1574 ( RB!); 02 Jul 2019, J. K . Hammes et al. 223 ( UNOP!); Picada para a Laje do Ouro , 03 Jul 2019, M . Nadruz 3534 ( RB!); Trilha Matipó, 04 Jul 2019, M . Nadruz 3542 ( RB!) .

Figures

FIGURE 2. Anthurium atrovinosum. A. Habit. B. Inflorescence before anthesis. C. Berries. Anthurium brigadeiroense. D. Inflorescence after anthesis. E. Berries. Anthurium fontellanum. F. Population. G. Habit. H. Leaf shape. I. Inflorescence in anthesis. Anthurium gladiifolium J. Inflorescence in anthesis. Anthurium scandens subsp. scandens K. Habit and berries.