psilate

psilate (not comparable)

1. (botany, of a pollen grain wall) Lacking ornamentation (having very small scabrae)
   • 2015, Iván A. Valdespino et al., “Seven new species of Selaginella subg. Stachygynandrum (Selaginellaceae) from Brazil and new synonyms for the genus”, in PhytoKeys‎, volume 9, DOI:10.3897/phytokeys.50.4873:

     Microsporangia in 2 dorsal rows; microspores orange, psilate marginally to rugulate towards the center with granulate microstructure on proximal faces, rugulate-cristate or cristate with broad baculate-like projections and granulate microstructure on distal faces, 28–40 µm.

• Pilates, aplites, pasteli, pilates, platies, talipes