The Pontifex Maximus determined when an intercalary month was to be inserted. The 365th day of the solar cycle would be a year-end, "intercalary" and optionally holiday. If the barley was not ripe, an intercalary month would be added before Nisan. Conidiophores are undifferentiated, intercalary or terminal, or arising as short lateral branches. The intercalary day is never inserted except in a year which has an intercalary month. These off-calendar days, also known as "intercalary days", are not assigned weekday designations. It used an intercalary month roughly once every six years. The intercalary month usually came after Poseidon, and was called second Poseidon. The first month without a mid-climate is the leap, or intercalary, month. This intercalary month, named Intercalaris or Mercedonius, contained 27 days. The intercalary month is placed at the end of the year. If any of the red intercalary zones are included, their sum has to be subtracted. Conidia appear arthrosporous, terminal or intercalary, aerial on an agar surface. These are sometimes described as intercalary. Endoconidia are produced in an intercalary cell and released into a neighboring empty cell.