Meniscium Schreber 1791
Creators: name: Fernandes, Rozijane Santos
name: Yesilyurt, Jovita Cislinski
name: Salino, Alexandre
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Polypodiopsida
Polypodiales
Thelypteridaceae
Meniscium

description: Key to species of Meniscium with dimorphic fronds or with buds in axils of pinnae   
1. Fronds monomorphic; buds present..................................................................................................................................................2  
–. Fronds dimorphic (fertile ones with longer petioles and smaller and narrower pinnae than sterile ones); buds absent...................6  
2. Buds present in axils of distal pinnae............................................................................................................................................... 3  
–. Buds are usually present in axils of proximal pinnae........................................................................................................................4  
 3. Laminar surface of fertile pinnae pubescent abaxially; sporangia with sessile globose glands on capsule.............. M. triangularis   
 –. Laminar surface of fertile pinnae glabrous abaxially; sporangia glabrous................................................................... M. cocleanum   
4. Pinnae in 6–12 lateral pairs; pinnae abaxially with short (0.1–0.3 mm), curved and acicular trichomes only on costae and veins............................................................................................................................................................................................................. 5  
 –. Pinnae in 2–4 lateral pairs; pinnae abaxially with long (0.6–1.3 mm), appressed, ciliform and crispate trichomes on costae, veins and laminar surface between veins....................................................................................................................... M. membranaceum   
 5. Pinna margins uncinate–serrate, at least toward apex..................................................................................................... M. serratum –. Pinna margins subentire to undulate-crenulate............................................................................................................ M. reticulatum   
6. Fertile pinnae abaxially glabrous between veins; sporangia glabrous or with acicular trichomes on stalks................................... 7  
 –. Fertile pinnae abaxially pubescent between veins; sporangia with acicular trichomes on capsule........................ M. macropyllum   
7. Margins of fertile pinnae entire to undulate sinuate..........................................................................................................................8  
 –. Margins of fertile pinnae crenate to unicate–serrate........................................................................................................ M. lanceum   
 8. Pinnae in 7–11 lateral pairs; abaxial surface of costae and veins with trichomes curved, sparse to moderate; sori usually acrostichoid; sporangia glabrous............................................................................................................................................. M. nesioticum   
 –. Pinnae in 5–6 lateral pairs; abaxial surface of costae and veins glabrous; sori discrete, on the cross–veins; sporangia with acicular trichomes on stalks......................................................................................................................................................... M. divergens
description: Published as part of Fernandes, Rozijane Santos, Yesilyurt, Jovita Cislinski & Salino, Alexandre, 2014, New species and combinations in Meniscium (Thelypteridaceae), pp. 1-11 in Phytotaxa 184 (1) on pages 9-10, DOI: 10.11646/phytotaxa.184.1.1, http://zenodo.org/record/5153177