The following two family names are recommended for conservation: Umbellinaceae against Umbellaceae, and Vojnovskyaceae against Dolerophyllaceae and Nephropsidaceae. The following seven generic names are recommended for conservation: Discoaster against Eu-discoaster, Helio-discoaster and Hemi-discoaster, Frenelopsis against Aularthrophyton, Polypodiisporites with that spelling against Polypodii-sporonites, Psaronius against Scitaminites, Spinosisporites against Spinosella, Todites against Acrostichites and Germaria, and Umbellina against Umbella. The following three species names are also recommended for conservation: Pecopteris williamsonis (Todites williamsonis) against P. curtata, P. hastata, and P. recentior, Ulmus laciniata Mayr ex Schwapp. (Ulmaceae) against Ulmus laciniata Göpp. (fossil Ulmaceae), and Viburnum betulifolium Batalin (Adoxaceae) against V. betulifolium Ward (fossil Adoxaceae). The following twelve generic names are not recommended for conservation: Aphanozonatisporites against Chroococcites, Dictyophis, Rhizostaemis and Triletes, Aphlebia against Schizopteris, Asterocalamites against Archaeocalamites and Stigmatocanna, Calamodendron against Calamitea, Cladophlebis with a conserved type, Cordaicladus against Palaeopteris, Crassinervia against Dolerophyllum, Dadoxylon with a conserved type against Megadendron, Heliodiscoaster and Hemidiscoaster with those spellings, Pitys, nom. cons. against Pinites, and Taeniopteris with a conserved type. The following three species names are not recommended for conservation: Pecopteris denticulata (Cladophlebis denticulata) against Pecopteris ligata, Sphenopteris princeps (Todites princeps) against Alethopteris imbricata, Pecopteris athyroides, and Germaria elymiformis, and Taeniopteris vittata with a conserved type. The committee judged the names Sycidium and Sykidion to be not confusable.
ASJC Scopus subject areas
- Ecology, Evolution, Behavior and Systematics
- Plant Science