Lepidomicrosorium

Lepidomicrosorium is a genus of ferns in the family Polypodiaceae, subfamily Microsoroideae, with a single species, Lepidomicrosorium subhastatum, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I).[1] Other sources do not accept the genus, submerging it into Tricholepidium, with Lepidomicrosorium subhastatum becoming Tricholepidium buergerianum (Miq.) Fraser-Jenk.[2][3]

Lepidomicrosorium
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Class: Polypodiopsida
Order: Polypodiales
Suborder: Polypodiineae
Family: Polypodiaceae
Subfamily: Microsoroideae
Genus: Lepidomicrosorium
Ching & K.H.Shing[1]
Species:
L. subhastatum
Binomial name
Lepidomicrosorium subhastatum
(Baker) Ching[1]
Synonyms[2]
  • Lepidomicrosorium asarifolium Ching & K.H.Shing
  • Lepidomicrosorium brevipes Ching & K.H.Shing
  • Lepidomicrosorium buergerianum (Miq.) Ching & K.H.Shing
  • Lepidomicrosorium emeicola Ching & K.H.Shing
  • Lepidomicrosorium hederaceum (Christ) Ching
  • Lepidomicrosorium lanceolatum Ching & P.S.Wang
  • Lepidomicrosorium latibasis Ching & K.H.Shing
  • Lepidomicrosorium microsorioides (W.M.Chu) Ching & W.M.Chu
  • Lepidomicrosorium subhastatum (Baker) Ching
  • Lepidomicrosorium subsessile Ching & K.H.Shing
  • Lepidomicrosorium suijiangense Ching & W.M.Chu
  • Lepidomicrosorium yiliangense Ching & K.H.Shing
  • Leptochilus buergerianus (Miq.) Bosman
  • Microsorum buergerianum (Miq.) Ching
  • Microsorum buergerianum var.ohwianum (Tagawa) Tagawa
  • Microsorum ohwianum Tagawa
  • Microsorum subhastatum (Baker) Ching
  • Neocheiropteris buergerianus (Miq.) Nakaike
  • Neocheiropteris subhastata (Baker) Tagawa
  • Neolepisorus microsorioides W.M.Zhu
  • Polypodium buergerianum Miq.
  • Polypodium hederaceum Christ
  • Polypodium subhastatum Baker

Phylogeny

A molecular phylogenetic study in 2019 suggested that Lepidomicrosorium was one of a group of closely related genera in the subfamily Microsoroideae, a group the authors termed "Lepisorus sensu lato". Its sole species was embedded in a clade in which none of the genera appeared to be monophyletic:[4]

Lepisorus s.l.
 
 

Lemmaphyllum

 
 

Lepidomicrosorium + Neocheiropteris + Neolepisorus + Tricholepidium

 
 
 
 

Lepisorus s.s.

 
 

Paragramma (as Lepisorus longifolius)

 
 
 
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References
  1. PPG I (2016), "A community-derived classification for extant lycophytes and ferns", Journal of Systematics and Evolution, 54 (6): 563–603, doi:10.1111/jse.12229
  2. Hassler, Michael & Schmitt, Bernd (January 2020), "Lepidomicrosorium subhastatum", Checklist of Ferns and Lycophytes of the World, Version 8.20, retrieved 2020-02-09
  3. "Lepidomicrosorium subhastatum (Baker) Ching", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2020-02-09
  4. Testo, Weston L.; Field, Ashley R.; Sessa, Emily B. & Sundue, Michael (2019), "Phylogenetic and Morphological Analyses Support the Resurrection of Dendroconche and the Recognition of Two New Genera in Polypodiaceae Subfamily Microsoroideae" (PDF), Systematic Botany, 44 (4): 737–752, doi:10.1600/036364419X15650157948607, retrieved 2020-02-11


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