Palmorchis valdiviesoana Szlach. & Baranow 2013, spec. nova
- 1. Gdansk University, Department of Plant Taxonomy & Nature Conservation, Aleja Legionow 9, 80 - 441 Gdansk, Poland.
Description
5. Palmorchis valdiviesoana Szlach. & Baranow, spec. nova
(Fig. 5).Typus: COLOMBIA. Vaupes: En Monfort, 29.XI.1952, Romero Castañeda 3843 (holo-: COL [64891]!).
Similar to P. guianensis, but differs in the obtriangular hypochile with basal, oblong, pubescent callus and two prominent lamellae running to the base of epichile which is ligulate-lanceolate and acute.
Plants at least 30 cm tall. Leaves petiolate; petiole and sheath 7 cm long; blade 24 cm long, 7 cm wide, oblong-elliptic, acuminate, delicate, with 7 prominent nerves. Inflorescence a raceme to 10 cm long, apical; rachis 4-5 cm long, pubescent, densely many-flowered. Flowers white, gynostemium red. Floral bracts 11 mm long, ovate-laceolate, acute, pubescent on both surfaces. Pedicel and ovary 8 mm long. Dorsal sepal 12 mm long, 2 mm wide, oblong-oblanceolate, acute, 5-nerved. Petals 11-12 mm long, 1.8 mm wide, oblong-lanceolate with a linear basal half, subfalcate, acuminate, 3-nerved, lateral nerves branching. Lateral sepals 13 mm long, 2 mm wide, oblong with lanceolate, acute apex, subfalcate, 5-nerved. Lip 13-14 mm long; hypochile 10-11 mm long, 6 mm wide, obtriangular, with a basal, woolly pubescent keel and two rather thick lamellae running along almost the entire lip length; epichile 3 mm long, 1 mm wide, ligulate-lanceolate, acute. Gynostemium 11 mm long, woolly pubescent at the base only.
Etymology. – Dedicated to Pedro Ortiz Valdivieso, an eminent Colombian orchidologist.
Ecology. – No records.
Distribution. – Collected in the Colombian departments Vaupes and probably Cundinamarca.
Notes. – This species appears to be related to P. guianensis (Schltr.) C. Schweinf. & Correll, but its hypochile is obtriangular, with a basal, oblong, pubescent callus and two prominent lamellae running to the base of epichile. The hypochile of P. guianensis is round-obovate in outline. The basal section of the lip is ventrally pubescent either side of the axis and the margins lightly ciliate; the middle nerve ventrally is gently sulcate for most of its length, dorsally quite strongly sulcate for the full length; lateral lobes obtuse to rounded.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Collection code
- COL
- Event date
- 1952-11-29
- Family
- Orchidaceae
- Genus
- Palmorchis
- Kingdom
- Plantae
- Material sample ID
- COL 64891
- Order
- Asparagales
- Phylum
- Tracheophyta
- Scientific name authorship
- Szlach. & Baranow
- Species
- valdiviesoana
- Taxonomic status
- sp. nov.
- Taxon rank
- species
- Type status
- holotype
- Verbatim event date
- 1952-11-29
- Taxonomic concept label
- Palmorchis valdiviesoana Baranow, 2013