PHILODENDRON CHANCHAMAYENSE

PROTOLOGUE: Philodendron chanchamayense , published in Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 37: 125 (1905). The protologue is reproduced below.

DISTRIBUTION: SE. Colombia to Bolivia: Bolivia, Colombia, Peru.

SPECIES DESCRIPTION:

Translated from protologue: Climbing, with internodes 2.5–5 cm long. Leaf petiole 2.5–4 times shorter than the blade, narrowly sheathed almost to the base of the blade, blade rigidly membranous, elongate-oblong, strongly inequilateral, one side equaling ½–⅔ the width of the other, base obtuse, long-acuminate and mucronulate, 1.5–2 dm long, 3.5–4 cm wide, lateral nerves spreading almost horizontally.

INFLORESCENCE:

Translated from protologue: Peduncle three times shorter than the spathe. Spathe convolute, constricted above the middle, cuspidate.

ECOLOGY:

Found in open forest at about 1000 m elevation.

ETYMOLOGY:

From the Chanchamayo Valley (rendered “Chanchamoyo-Tal” in the protologue) in Junín, Peru, where Weberbauer collected the type in open forest at about 1000 m elevation. The protologue gives no explicit etymological statement, but the geographic reference is unmistakable.

NOTES:

1. Type locality: Peru, Departamento Junín, Provincia Tarma, La Merced, in the Chanchamayo Valley, in open forest at about 1000 m elevation (A. Weberbauer n. 1864).

2. Placed by Engler in Philodendron sect. Pteromischum.

3. The protologue prints the epithet as “chinchamayense”; the accepted spelling, chanchamayense, matches the Chanchamayo Valley named as the type locality in the same account.

REFERENCES:

1. Plants of the World Online, Royal Botanic Gardens, Kew — Philodendron chanchamayense

2. Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 37: 125 (1905) — protologue.

3. iNaturalist: Philodendron chanchamayense

Additional photos from iNaturalist by Riley Fortier, Nataly and Nate Hartley