DENDROLOGY

Detailed explanation-1: -Hornworts are minute nonvascular plants, similar in size to liverworts. They also have very fine rhizoids and lack stems. Their sporophytes are long and pointed, like tiny horns. They rise several centimeters above the gametophytes of the plant.

Detailed explanation-2: -Hornworts do NOT have vascular tissue. They are part of a group of plants called bryophytes that do not have vascular tissue.

Detailed explanation-3: -Non-vascular plants are those without a vascular system (that is they lack xylem and phloem ) and grow from spores. They do not have roots, stems, or leaves (although the lobes of some liverworts can look like leaves). Some non-vascular plants however do possess specialized tissues for internal transport of water.