Fertile lemma surface (roughness)

     

smooth                                       granulose                               scabrous                                 tuberculate

   

striate                                       reticulate                                 punctate

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith