Anoectangium, Schwagrichen, 1811

Cano, María J. & Jiménez, Juan A., 2013, A taxonomic revision of the tribe Pleuroweisieae (Pottiaceae, Bryophyta) in South America, Phytotaxa 143 (1), pp. 1-42 : 26

Key to Anoectangium in South America

1. Leaves (1.2–) 1.5–2.1 mm long, usually slightly constricted above base; costa usually excurrent 1. A. stracheyanum - Leaves 0.7–1.2(–1.3) mm long, not constricted above base; costa usually percurrent ............................................... 2

2. Leaves lanceolate to ovate-lanceolate; leaf apex acute; leaf cells plane superficially (seen in cross-section) .............. ................................................................................................................................................................. 2. A. aestivum

- Leaves linear to lingulate, rarely lanceolate; leaf apex usually obtuse; leaf cells convex superficially (seen in cross- section)...................................................................................................................................................3. A. euchloron