Rediscovery and new combination of Serpocaulon demissum (Polypodiaceae), an endangered endemic species to the Brazilian inselbergs Author Sanín, David 0000-0003-0680-5531 dav.sanin@gmail.com Author Salino, Alexandre 0000-0003-0104-7524 salinobh@gmail.com text Phytotaxa 2020 2020-06-16 449 1 52 64 http://dx.doi.org/10.11646/phytotaxa.449.1.5 journal article 310337 10.11646/phytotaxa.449.1.5 7e4e1e5d-10c5-4a2a-b40d-70e04b2dab0f 1179-3163 13877295
TABLE 1. Comparison of morphological features of Brazilian Atlantic Forest related species of Serpocaulon.
Character/speciesS. catharinae (n= 81)S. demissum (n= 18)S. vacillans (n= 19)
HabitTerrestrial, rupicolous and epiphyticRupicolous (over litter matter)Terrestrial, subterranean (rarely rupicolous)
Rhizome width (mm)3.3–8.45–123.2–7.5
Rhizome glaucousGlaucousSparsely glaucousNon-glaucous
Scale length (mm)1–74–92–5
Scale colorBicolorousConcolorousConcolorous
Scale shapeSubulateLanceolateTriangular to ovate-lanceolate
Scale marginsDentate to crenateWith marginal projectionsDentate to crenate
Petiole basesStraightSinuateSinuate
Laminar pubescenceSparseSparseDense
Spore perisporeProminent foldsNo foldsScarcely folded