Paul van Rijckevorsel via Taxacom

10:06 AM (1 hour ago)

to Lorenzo, taxacom There are (at least) four options: 1) describe as a species (like Triticum aestivum, Art H.3 Ex. 3) 2) describe as a nothospecies (like Mentha ×smithiana, Art H.3 Ex. 1) 3) describe by a hybrid formula (like Agrostis stolonifera L. × Polypogon monspeliensis (L.) Desf., Art H.2 Ex. 1). See also Rec. H.10B.1, at least its spirit. 4) describe as a cultivar

The choice between these is a matter of degree, depending on how important the newly described taxon is perceived to be. Obviously, a status as a species (non-hybrid) is only called for in case of a long-established taxon.

The general tendency is to increasingly treat hybrids as cultivars, with many former species that were well known horticulturally having been renamed to become cultivars.

Paul

To do

edit
  • regularize placement of ×
  • synonyms for nothospecies
  • hybrid formulas
  • review main animal hybrids
  • review plant genera for hybrid species
  • find lists of nothogenera and higher-ranked nothotaxa
  • add hybrid terminology