2. Additions or Corrections to last year's notes.

  1. The gene ramosa has appeared in another stock, a Leaming inbred. It has proved allelomorphic with ra1. This makes the fourth occurrence of this gene in our stocks.
  2. Preliminary tests with la2 give an indication of linkage with su. No crossovers occurred in a row of 20 plants. It is probably allelomorphic to la1.
  3. Micropyle color Mc is a modifying factor, rather than allelomorphic. Backcrosses of PMc/pmc to pmc showed a segregation into PMc, Pmc and p plants, which could not occur if Mc were allelomorphic to P.