Means by which aqueous solutions are moved around in less-primitive plants other than as by .
Vascular tissue is found primarily in lycophyte and ptereophyte plants as well as and angiosperms, that is, vascular plants. The vascular tissue itself can be distinguished into xylem versus phloem.
Algae don't require vascular tissue because there is no separation of photosynthesizing organs from water and gathering tissues. That is, the whole of the thallus does all of these things. Similarly, the more of plants, that is, the , mostly lack vascular tissue.
Video (nice, professionally done overview of transpiration and role in vascular tissue functioning)