10. Cranichis maldonadoana Kolan., Baranow, S. Nowak & A. Fuentes, sp. nov.

Type.

BOLIVIA. Bastian 937 (holotype LPB!; isotype LPB!).

Diagnosis.

Species similar to C. pleioneura, but distinguished by 1-veined sepals, lanceolate-ovate petals that are sparsely ciliate in the lower part and by subsessile, suborbicular-obovate lip with apiculate apex.

Plants 30-40 cm tall, erect. Leaf 1, basal, petiolate; petiole 11-14 cm long, narrow, canaliculate; blade 7.8-10 cm long, 4.2-6 cm wide, ovate, apex not preserved. Scape enclosed in 4-5 sheaths, glandular towards apex. Inflorescence 6-7 cm long, cylindrical, densely many-flowered . Flowers greenish-yellow, glabrous. Floral bracts 3.3 mm long, lanceolate, acuminate, glabrous. Pedicellate ovary 4.2 mm long, glabrous. Dorsal sepal 3.7 mm long, 1.5 mm wide, oblong-elliptical, obtuse, 1-veined. Petals 3.2 mm long, 1 mm wide, obliquely lanceolate-ovate, obtuse, 1-veined, ciliate on basal 2/3. Lateral sepals 4.2 mm long, 1.3 mm wide, obliquely elliptic-ovate, subacuminate, subobtuse, 1-veined. Lip 2.4 mm long, 2 mm wide, lower part concave, subsessile, suborbicular-obovate, apex apiculate; disc with 3 thickened, dendritic branching veins. Gynostemium 2.3 mm long. Fig. 12.

Etymology.

Dedicated to Carla Maldonado, the director of Herbario Nacional de Bolivia, for her great support during our studies in Bolivia.

Habitat and ecology.

Terrestrial plants growing in Tucumano-Boliviano pine ( Podocarpaceae) forest at an altitude of 2100 m. Flowers in March.

Representative specimen.

BOLIVIA. Tarija: Prov. Cercado, cerca Victoria, 2150 m. 3 March 1986. E. Bastian 937 (LPB!). Fig. 2B, 12.

Notes.

This species resembles C. pleioneura and C. barkleyi Szlach. & Kolan., from which it differs in its lanceolate-ovate petals (vs. linear-oblanceolate to linear-ligulate), which are rather sparsely ciliate on the lower part (vs. equally ciliate or pilose along whole length). Unlike in C. pleioneura those of C. maldonadoana are 1-veined. Cranichis atrata Schltr. differs from C. maldonadoana by having ligulate-oblanceolate petals, which are ciliate along both margins (vs. lanceolate-ovate, obtuse, 1-veined, ciliate on the basal 2/3). The comparative morphology of C. maldonadoana, C. barkleyi and C. pleioneura is presented in Table 2.

Specimen Bastian 937 is heterotypic. Two specimens from this collection, which are currently included in the general collection of LPB, are C. maldonadoana . Plants deposited in the boxes with the undetermined materials in the same herbarium fit the characteristic of C. badia Renz ex Kolan. & Szlach.