Is just received via mail order young thymus vulgaris (bottom photo) and Greek oregano (top photo) plants. I have not planted them in pots yet; they are still in plastic wrap. All of the stems on these plants are brown or black and feel stiff and dry. The soil in the plastic wrap is still moist and the leaves look okay. Is the brown/black on the stems a fungus? If so, can I salvage these younglings somehow?