Pleurothallis magdalenae Rchb.f. 1855 SUBGENUS Pseudostelis

Drawing by Carl Luer

Drawing

Original Drawing by Padre Pedro Ortiz Conserved at the Herbario de la Universidad Javeriana, Bogota Colombia

Flower? Lip not right, closer to P bracteosa Photo by Dalton Holland Baptista

Common Name The Magdalena Pleurothallis [A river and town near where the species was first encountered]

Flower Size .2" [5 mm]

Found in Colombia and Ecuador in dense forests at elevations around 1800 to 2500 meters as a mini-miniature to small sized, cool to cold growing, caspitose epiphyte with a slender, erect ramicaul with a tubular sheath near the middle and 2 others at the base and carrying a single, apical, erect, coriaceous, narrowly elliptical, acute to subacute, narrowly cuneate below into the petiolate base leaf that blooms in the winter on an erect, arising through a spathe and an annulus below the apex of the ramicaul, strict, sublax, subsecund, 2 to 6" [5 to 15 cm] long, simultaneously several to many flowered, racemose inflorescence with an oblique, acute, as long to shorter than the ovary floral bract.

"Distinguished by the slender habit with a narrow subpetiolate base leaf about the same length as the ramicaul. The secund inflorescence of small, simultaneous flowers is often twice as long as the leaf. The sepals are free, usually light purple and glabrous, but on many specimens the external surfaces are covered by a web of hyphae, the petals are pblong and obtuse with the midvein thickened, the oblong lip is very thick with the rounded apex either smooth or lightly subverrucose and the disc is broadly channeled between a pair of perallel calli." Luer 1999

CAUTION The photo attributed to P magdalenae is closer to P bracteosa with the frilly verrucose lip so please use with caution. I await more information!

Synonyms Crocodeilanthe magdalenae (Rchb.f.) Toscano 2018; Humboldtia magdalenae (Rchb.f.) Kuntze 1891; Pleurothallis stelidioides Schltr. 1920; Stelis magdalenae (Rchb.f.) Pridgeon & M.W.Chase 2001

References W3 Tropicos, Kew Monocot list , IPNI ;

* Bonplandia (Hannover) 3: 72 Rchb.f 1855 as P magdalenae;

Revis. Gen. Pl. 2: 667 Kuntze 1891 as Humboltia magdalenae;

Repertorium Specierum Novarum Regni Vegetabilis Schlechter 1920 as P stelidioides;

Icones Pleurothallidinarum Vol III Systematics of Pleurothallis Luer 1986;

Icones Pleurothallidinarum Vol XVIII Systematics of Pleurothallis subsection Antenniferae, Longiracemosae, Macrophyllae-Racemosae and Subgenera Pseudsostelis and Acuminata Luer 1999

Icones Pleurothallidinarum Vol XVIII Systematics of Pleurothallis subsection Antenniferae, Longiracemosae, Macrophyllae-Racemosae and Subgenera Pseudsostelis and Acuminata Luer 1999drawing fide;

Lindleyana Vol 16 No 4 Pridgeon & M W Chase 2001 as Stelis magdalense; Harvard Pap. Bot. 23: 54 Toscano 2018 as Crocodielanthe magdalenae

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