Cranichis mandonii Schltr., Repert. Spec. Nov. Regni Veg. Beih. 10: 38. 1922.

Kolanowska, Marta, Baranow, Przemyslaw, Nowak, Slawomir & Fuentes, Alfredo, 2021, Materials to the revision of the genus Cranichis (Orchidaceae) in Bolivia, PhytoKeys 186, pp. 11-41 : 11

11. Cranichis mandonii Schltr., Repert. Spec. Nov. Regni Veg. Beih. 10: 38. 1922.

Type.

BOLIVIA. Mandon 1163 (lectotype, designated by Szlachetko and Kolanowska (2019: 12): AMES!; isolectotypes, BM, G, GH, NY, P, S).

Diagnosis.

Plants 40-60 cm tall. Leaves 1-2, basal, petiolate; petiole 13-16 cm long, narrow, canaliculate; blade 6-8.5 cm long, 3.7-4.4 cm wide, oblong to ovate, slightly oblique, base cordate. Scape delicate, terete, enclosed in 5-6 acuminate sheaths, apically glandular-pilose. Inflorescence 12 cm long, cylindrical, subdensely many-flowered. Flowers with tepals maroon at base, white at apex. Floral bracts about 5-5.5 mm long, narrowly lanceolate, acuminate. Pedicellate ovary about 5-5.5 mm long, fusiform- cylindrical, sparsely glandular. Sepals sparsely pubescent on the outer surface. Dorsal sepal 4.5 mm long, 1.5 mm wide, lanceolate-ovate to oblong ovate, subacute to subobtuse, 3-veined. Petals 4 mm long, 1 mm wide, oblong ligulate to oblong oblanceolate, obtuse to rounded at apex, 1-veined, margins minutely ciliate-papillate. Lateral sepals 4.5 mm long, 2 mm wide, elliptical to elliptic-ovate, subacute, 3-veined. Lip 3 mm long and wide, basally gibbose, subsessile, suborbicular-obovate to suborbicular, apically rounded; disc 3-veined, veins somewhat thickened, dendritic branching, without any nodules. Gynostemium 2 mm long. Fig. 13 .

Habitat and ecology.

Terrestrial plants growing in Yungas montane cloud forest at altitudes between 2600-3100 m. Flowers in April and May.

Representative specimens.

BOLIVIA. Larecaja: Sorata, 2650-3100 m. Apr-May 1860. G. Mandon 1163 (AMES!, BM, G, GH, NY, P, S). Fig. 2 .

Notes.

Cranichis mandonii is often considered as conspecific with C. ciliata (e.g. Schweinfurth 1958), however, the two species differ in the ornamentation on the sepals, which in C. mandonii is sparsely pubescent and in C. ciliata glabrous.

Figures

Figure 2. Distribution of Cranichis species in Bolivia. A C. atrata, C. badia, C. beckii, C. ciliata, C. cylindrostachys. B C. garayana, C. lehmannii, C. longipetiolata, C. maldonadoana. C C. mandonii, C. muscosa, C. pulvinifera, C. silvicola, C. stictopylla. Base map provided by Natural Earth (www. naturalearthdata. com).

Figure 13. Cranichis mandonii Schltr. A Dorsal sepal. B Petal. C Lateral sepal. D Lip. E Gynostemium. Redrawn by A. Krol from Garay's illustration of specimen collected by Mandon 1163 (AMES).