Standard/Recurring Journal Entries are used to enter journal entries that are a fixed amount that repeat each period, such as depreciation and amortization. You can find Standard/Recurring Journal Entries under: General Ledger -> Journal Entries Menu -> Standard/Recurring Journal Entry (GL1035).
Standard Journal Entries are used to record entries that contain the same general ledger account numbers, but will use different amounts each time they are entered (Example: Payroll Accrual). You can find Journal Entries under: General Ledger -> Journal Entries Menu -> Journal Entry (GL1031).