flap segment 66 is defined by the first hinge line first and second lines of cut 72 and 74 formed in the cover extending from the opposed ends of the first hinge line and a third line of cut 76 formed in the cover interconnecting the first and second lines of cut and spaced from the first hinge line the second flap segment is defined by the first hinge line 70 a second hinge line 78 between the closure flap and the remainder of the cover and extending substantially at right angles to the first hinge line from one end thereof a fourth line of cut 80 formed in the cover and extending from the other end of the first hinge line and a fifth line of cut 82 formed in the cover and extending between the fourth line of cut 80 and the second hinge line 78 and spaced from the first hinge line 70 the second and fourth lines of cut 74 and 80 are connected and form a notch 84 in the cover in communication with the aperture 86 that is formed in the cover when the closure flap 62 is opened the shipping container of the present invention functions as follows first the tray 12 is filled with the desired contents such as cut flowers and the cover is then placed over the tray and its contents so that the tray and cover assume the respective positions illustrated in fig1 it will be noted that when the tray and cover are in such position the aperture 86.