Holttum, R.E. (1986), A new tree-fern in northern Queensland. Kew Bulletin 41(3): 532 [tax. nov.]

• Type: "N. Queensland, Cape York Peninsula, William Thompson Range, Mann Creek, growing with Pandanus and Calamus in swamp by the stream; D.L. Jones et al. 1212 (holotypus K; isotypus BRI)."

Thomas, M.B. & McDonald, W.J.F. (1989), Rare and threatened plants of Queensland: a checklist of geographically restricted, poorly collected and/or threatened vascular plant species Edn. 2: 10 [secondary reference]

Andrews, S.B. (1990), Ferns of Queensland: 391 [secondary reference]

Bostock, P.D. (27 September 1991), Cyathea exilis Holttum (Pteridophyta: Cyatheaceae). Austrobaileya 3(3): 565 [secondary reference]

Bostock, P.D. in McCarthy, P.M. (ed.) (1998), Cyatheaceae. Flora of Australia 48: 197-198, Fig. 62, Map 167 [secondary reference]

• APC Dist.: Qld

Threatened Species and Communities Section, Biodiversity Group, Environment Australia (8 July 1998), Endangered Species Protection Act 1992. Schedules 1, 2 & 3: 7 [secondary reference]

Lehnert, M. & Cámara-Leret, R. (9 September 2019), New species of scaly tree ferns (Cyatheaceae) from New Guinea, and new combinations for the family for Malesia. Kew Bulletin 74(3): 24 [online only] [secondary reference]

• Type: "... (holotype K!- 000061782/-000061783/-000061784; isotype BRI)."

Lehnert, M. & Cámara-Leret, R. (9 September 2019), New species of scaly tree ferns (Cyatheaceae) from New Guinea, and new combinations for the family for Malesia. Kew Bulletin 74(3): 24 [online only] [basionym]

basionym of: Alsophila exilis (Holttum) Lehnert legitimate

Field, A.R. (2 January 2020), Classification and typification of Australian lycophytes and ferns based on Pteridophyte Phylogeny Group classification PPG I. Australian Systematic Botany 33(1): 35 [secondary reference]

• Type: "Cape York Peninsula, Queensland, 12 Sep. 1983, D.L.Jones, B.Gray & R.Collins 1212 (holo: K 000061782*; iso: BRI AQ0540162!)."

Field, A.R. (2 January 2020), Classification and typification of Australian lycophytes and ferns based on Pteridophyte Phylogeny Group classification PPG I. Australian Systematic Botany 33(1): 35 [basionym]

basionym of: Alsophila exilis (Holttum) A.R.Field isonym

Brown, G.K. & Bostock, P.D. (December 2020), Appendix A: New names and name and status changes 2019 to 2020. Introduction to the Census of the Queensland Flora 2020: 7 [nomenclatural synonym]

nomenclatural synonym of: Alsophila exilis (Holttum) Lehnert legitimate

Council of Heads of Australasian Herbaria (7 July 2021), Australian Plant Census: - APC [secondary reference]

nomenclatural synonym: Alsophila exilis (Holttum) Lehnert legitimate nomenclatural synonym: Alsophila exilis (Holttum) A.R.Field isonym

• APC Comment: Treated as Alsophila exilis in Qld.
• APC Dist.: Qld

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