Cyathea aterrima (Hook.) Domin (1929a: 262)

Lehnert, Marcus, 2016, A synopsis of the exindusiate species of Cyathea (Cyatheaceae-Polypodiopsida) with bipinnate-pinnatifid or more complex fronds, with a revision of the C. lasiosora complex, Phytotaxa 243 (1), pp. 1-53 : 7

16. Cyathea aterrima (Hook.) Domin (1929a: 262) . Alsophila aterrima Hooker (1866: 38) . Sphaeropteris aterrima (Hook.) Tryon (1970: 20) . Type:— PERU. San Martin: Near Tarapoto, R. Spruce 4713 (lectotype K-000589912!, here designated, isolectotypes BM-000937694!/-000937695!, BR-0000006970444!/-0000006970772!/-0000006970833!, K-000589909!/-000589910!/-000589913!/-000589914!, NY-00148637! [fragment of P], P-00642516–00642518!, US-01100699!).

Alsophila mollicula Maxon (1946: 440) . Sphaeropteris mollicula (Maxon) Tryon (1970: 20) . Type:— COLOMBIA. Caqueta: Between Santa Marta and Marsella, 4 August 1926, G. Woronov & S. Juzepzuk 6415 (holotype US-00066167!, isotype LE n.v.-photo GH).

Dryopteris macarenensis Alston (1952: 5) . Alsophila macarenensis (Alston) Tryon (1962: 91) . Sphaeropteris macarenensis (Alston) Tryon (1970: 20) . Type:— COLOMBIA. Meta: Macarena Mountains, northern escarpment, 800 m, W.R. Philipson 2281 (holotype BM-000937594!, isotype COL-000006261!).

Alsophila scopulina Tryon (1960: 2) . Type:— COLOMBIA. Vaupés: Río Canarari (affluent of Río Apaporis), Cerro Isibukuri, 8 June 1951, R.E. Schultes & A. Cabrera 13411 (holotype GH-00020436!/-00020437!/-00020438!, isotypes B-20-0135761!, BM-000937684!, NY-148765!, U-0007315!, US-00066190!)

Alsophila lechria Tryon (1960: 4) . Type:— COLOMBIA. Santander: Mesa de Los Santos, 1500 m, 11–15 December 1926, E.P. Killip & J.D. Smith 15202 (holotype GH-00020420!, isotypes NY n.v, US-00066151!/-00066152!).

Distribution and habitat: — Colombia, Venezuela, Ecuador, and Peru, restricted to sandstones or sandstone-derived soils, often epilithic, in open dwarf forest or dense premontane rain forests at 320–1200(–2000) m.