The ornamental design for a transportationdevice for plants to be used in a greenhouse, as shown and described.
FIG. 1 is a perspective side view of the transportation device of the present invention;
FIG. 2 is a back view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a left view thereof;
FIG. 5 is a right view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof; and,
FIG. 8 is a bottom view from the opposite side of FIG. 7.
The horizontal broken line shown cutting away the center tube is to shown indefinite length of the device.
The broken line showing of a circular element on the bottom of the device in FIGS. 1-5, 7 and 8 is included for the purpose of illustrating portions of the article and form no part of the claimed design.