Vessels are usually absent inA. Gymnosperms    B. Pteridophytes    C. Angiosperms

Most of the Pteridophytes and Gymnosperms do not have vessels. Almost all angiosperms have vessels. However some pteridophytes like Equisetum, Marselia and Selaginella have vessels. Similarly some gymnosperms like Gnetum, Welwitchia and Ephedra have vessels. A few angiosperms lack vessels (Drymis, Trochodendron).