Encyclia bohnkiana Castro Neto & Campacci (1999: 91)

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

7. Encyclia bohnkiana Castro Neto & Campacci (1999: 91) . Type:— BRAZIL. Alagoas: Messias, Serra de Bititinga ,

February 1999, Bohnke s.n. (holotype: SP 339145 !, SP 341858 !) ( Fig. 6 and 24G ) .

Heterotypic synonym:

Encyclia silvana Castro Neto & Campacci (2003: 22) . Type:— BRAZIL. Bahia: Porto Seguro , 100 m, September 1999, Silva s.n. (holotype: SP 363183 !).

Epiphytic herbs, 10.6−11.5 cm tall. Pseudobulbs conical, 2.0−2.8 × 0.9−1.0 cm. Leaves 1, oblanceolate to oblong, obtuse to acute, 8.0−12.0 × 1.1 cm. Inflorescence a densely 3–5-flowered, simple to compound raceme; peduncle 6.5−7.5 cm long; rachis 2.0− 5.5 cm long. Flowers with pedicel c. 1.7 × 0.2 cm, warty; sepals yellow to greenish, the dorsal oblong to lanceolate, 1.1−1.2 × 0.3−0.5 cm, laterals oblong to lanceolate, 1.2−1.3 × 0.3 cm, pendent, margin entire, apex acute; petals yellow to greenish, subspatulate, acute, 1.1−1.2 × 0.2−0.4 cm, pendent, margin entire; lip unguiculate, the claw 0.10−0.15 × 0.20−0.30 cm, lateral lobes ensiform, acute, free from the midlobe, 0.7 × 0.1−0.2 cm, yellow to greenish, at a ˂45° angle to the midlobe (in the flattened lip), not overlapping it, margin entire, midlobe rounded to elliptic, obtuse, 0.4−0.5 × 0.4−0.6 cm, yellow to greenish, flat, margin gently undulate, callus cymbiform, apex of the callus acute; column clavate, 0.6−0.9 × 0.2−0.3 cm, clinandrium apex tridentate, lateral teeth rounded to triangular, apex acute, arms of the column quadrate, obtuse, c. 0.1 × 0.15 cm,; stigma triangular, with basal hooks; anther one, intense yellow, c. 0.1 × 0.2 cm.

Distribution and habitat:— Endemic to the Atlantic Forest in the Northeast ( Fig. 4 ).

Phenology:— Flowering August–February.

Etymology:— The epithet honours the collector of the type material, Erwin Bohnke.

Taxonomic notes:— Encyclia bohnkiana is often confused with E. chloroleuca , but the latter is much taller (ca. 35 cm) than E. bohnkiana (ca. 15 cm). Moreover, there are differences in distribution; E. chloroleuca is an Amazonian species, whereas E. bohnkiana is endemic to the Atlantic Rainforest in the Northeast. Bastos et al. (2016) synonymised E. silvana under E. bohnkiana based on continuity of morphology and distribution; the former seems to be an autogamous form of the latter.

Selected specimens examined:— BRAZIL. Alagoas: Murici, Serra do Ouro , February 2010, Meneguzzo 517 ( HUEFS) . Bahia: Belmonte , 25April 2010, Meneguzzo 523 ( HUEFS) ; Entre Rios, Rio do Negro Farm , 28August 2009, Popovkin 621 ( HUEFS) ; Valença , tower on the BR- 101, 650 m, 30 September 2010, van den Berg 1972 ( HUEFS) .

Figures

FIGURE 4. Distribution in Brazil of Encyclia advena, E. alboxanthina, E. andrichii, E. argentinensis, E. auyantepuiensis, E. bicalhoi and E. bohnkiana.

FIGURE 6. A−I. Encyclia argentinensis. A. Dorsal sepal. B. Lateral sepal. C. Petal. D. Lip. E. Detail lip callus. F. Column front view. G. Column side view (Bastos 300). H. Variation in the lip (Batista s.n. CEN 26611). I. Variation in the lip (Godinho 221). J−M. Encyclia auyantepuiensis. J. Dorsal sepal. K. Lateral sepals. L. Petal. M. Lip (Pessoa 1010). N−S. Encyclia bicalhoi. N. Dorsal sepal. O. Lateral sepal. P. Petal. Q. Lip. R. Detail of lip callus. S. Column side view (Bohnke s.n. SP 476498). T−A’. Encyclia bohnkiana. T. Habit (Popovkin 621). U. Dorsal sepal. V. Lateral sepal. X. Petal. W. lip. Y. Detail of lip callus. Z. Column front view. A’. Column side view (van den Berg 1577). B’. Variation in the lip (Meneguzzo 523). Illustration by Carla de Lima.

FIGURE 24. A. ×Catyclia ×intermedia. B. Encyclia advena. C. Encyclia alboxanthina. D. Encyclia andrichii. E. Encyclia argentinensis. F.Encyclia auyantepuiensis. G. Encyclia bohnkiana. H. Encyclia bracteata. I. Encyclia bragancae. J. Encyclia chapadensis. K. Encyclia chloroleuca. L. Encyclia conchaechila. M. Encyclia cyperifolia. (Photographers: A: A. Peres Júnior. B, D−E, G−J: C. van den Berg. C: U.C.S. Silva. F: E. Pessoa. K−L: T.E.C. Meneguzzo).