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.