Encyclia pauciflora (Barb.Rodr.)

Bastos, Cláudia A., Meneguzzo, Thiago E. C. & Berg, Cássio Van Den, 2018, A taxonomic revision of the Brazilian species of Encyclia (Orchidaceae: Epidendroideae: Epidendreae), Phytotaxa 342 (1), pp. 448-450 : 448-450

31. Encyclia pauciflora (Barb.Rodr.) Porto & Brade (1935: 29). Basionym: Epidendrum pauciflorum Barbosa

Rodrigues (1877: 49). Type:— BRAZIL. Minas Gerais: no locality, December , no collector (lectoype designated by

Fowlie & Duveen (1992): unpublished illustration by Barbosa Rodrigues in Iconographie des orchidées du Brésil: t.

11”!). ( Figs. 20 , 26E ).

Heterotypic synonym: Epidendrum dutrae (Pabst) Hawkes (1956: 170) . Encyclia dutrae Pabst (1955: 110) . Type:— BRAZIL. Rio Grande do Sul: Torres, Morro do Forno, 6 December 1934, Dutra 1164 (holotype: ICN M/11/2/33/1, not found; RB 84074, designated here as the lectotype).

Epiphytic herbs, up to 32.0 cm tall. Pseudobulbs conical, 3.7 × 1.1 cm. Leaves 2, oblanceolate, 17.3−28.7 × 0.5−0.6 cm, apex acute. Inflorescence a 2–8-flowered, simple raceme; peduncle 15.7−28.7 cm long; rachis 3.5−18.6 cm long. Floral pedicel 2.3−2.7 × 0.2 cm, warty; sepals brownish green, dorsal lanceolate, 2.2 × 0.6 cm, laterals lanceolate, 2.2 × 0.6 cm, reflexed, margin undulate, apex acute; petals brownish green, spatulate, 2.0 × 0.6−0.7 cm, reflexed, margin undulate, apex acute to mucronate; lip with claw 0.15−0.10 × 0.40 cm, lateral lobes free relative to midlobe, 1.0−1.1 × 0.4−0.5 cm, yellowish, at a <45° angle to the midlobe (in the flattened lip), sometimes overlapping it, margin entire, apex obtuse, midlobe oval, c. 2.0 × 1.1−1.4 cm, pink with dark pink streaks, conduplicate, margin undulate, apex emarginate to mucronate, callus cymbiform, bifid; column clavate, 1.1−1.3 × 0.3−0.5 cm, clinandrium apex tridentate, lateral teeth triangular, apex acute, arms of column oval to quadrate, 0.12−0.15 × 0.12−0.20 cm, apex obtuse; stigma elliptic, without basal hooks; anther one, whitish, 0.25−0.30 × 0.28−0.30 cm.

Distribution and habitat:— Endemic to the southeast and south, in cerrado and Atlantic Forest ( Fig. 19 ).

Phenology:— Flowering September to December.

Etymology:— From Latin paucus, few, and flos, flower, a reference to the small number of flowers in each inflorescence.

Taxonomic notes:— Enyclia pauciflora has short (18−30 cm), few-flowered (up to 8 flowers) inflorescences. The illustration from the protologue of E. dutrae differs from the isotype at RB, which is a synonym of E. pauciflora . Because the holotype stated to be at ICN could not be found, we opted to lectotypify this name with an isotype at RB. Unaware of the previous lectotypification by Fowlie & Duveen (1992) for E. pauciflora, Meneguzzo et al. (2010) superfluously lectotypified the name with the same illustration.

Selected specimens examined: BRAZIL. Minas Gerais: Alfenas , 11 November 1960, no collector ( ESA 4477 ) ; Belo Horizonte, Dias− Pouso Alegre− Careaçu road, 23 October 1962, no collector ( ESA 12564 ) ; Bom Jardim de Minas , 1219 m, 11 October 1960, Salib s.n. ( HB 19438 ) ; Campanha, near Cambuquira , 875 m, November 1955, Welter 160 ( HB) ; Caxambu, Caxambú Water Park , November 1957, no collector ( HB 4535 ) ; Entre Rios de Minas, Pedra Branca Farm , 31 December 1949, Krieger 16628 ( CESJ) ; Fama , 802 m, February 1934, Kuhlmann s.n. ( RB 199932 ) ; Formiga , 11 December 1959, no collector ( ESA 4182 ) ; Lavras , 3 November 1944, Heringer s.n. ( SP 52135 ) ; Paraopeba, Paraopeba− Picada road, 731 m, 20 April 1956, Heringer 5436 ( HB) ; Pouso Alegre, woods near the Sapucaí River , 16 November 1928, Hoehne s.n. ( SP 29372 ) . Rio Grande do Sul: Torres , 8 m, 20 November 1954, Jung s.n. ( HB 2581 ) . São Paulo: Brotas , 603 m, November 1961, Perazolli 270 ( HB) .

Figures

FIGURE 19. Distribution in Brazil of Encyclia pauciflora, E. randii, E. seidelli, E. spiritusanctensis, E. thienii and E. unaensis.

FIGURE 20. A−H. Encyclia pauciflora. A. Dorsal sepal. B. Lateral sepal. C. Petal. D. Lip. E. Detail of lip callus. F. Column front view. G. Column side view (Bastos 287). H. Variation in the lip (Jung s.n. HB 2581). I−S. Encyclia randii. I. Habit. J. Dorsal sepal. K. Lateral sepal. L. Petal. M. Lip. N. Detail of lip callus. O. Column front view. P. Column side view (Salles 4089). Q. Variation in the lip (Bastos 292). R. Variation in the lip (Pires s.n. HB 41031). S. Variation in the lip (Bastos 309). T−W.Encyclia seidelii. T. Dorsal sepal. U. Lateral sepal. V. Petal. W. Lip (Seidel 1111). Illustration by Carla de Lima.

FIGURE 26. A. Encyclia oncidioides. B. Encyclia osmantha. C. Encyclia patens. D. Encyclia patens var. serroniana. E. Encyclia pauciflora. F. Encyclia randii. G. Encyclia replicata. H. Encyclia seidelii. I. Encyclia spiritusanctensis. J. Encyclia thienii. K. Encyclia unaensis. L. Encyclia viridiflora. M. Encyclia xerophytica. (Photographers:A−C, E−M: C. van den Berg. D: A. Peres Júnior).