Title: 5 Non-vascular Plants and Plants Without Seeds | Laboratory Manual For SCI104 Biology II at Roxbury Community College
Headings: 5
Non-vascular Plants and Plants Without Seeds

5 Non-vascular Plants and Plants Without Seeds
5.1 Embryophytes
5.2 Non-vascular plants
5.3 Bryophytes
5.4 Mosses
5.4.1 Life cycle
5.5 View the prepared slides of mosses
5.6 Liverworts
5.6.1 Life cycle
5.7 View Prepared Slides of Liverworts
5.8 Vascular plants
5.9 Pteridophyta
5.9.1 Life cycle
5.10 Clubmosses
5.11 Spikemosses
5.12 View Prepared Slides of Selaginella
5.13 Horsetails
5.14 View Prepared Slides of Equisetum
5.15 Whisk ferns
5.16 View Prepared Slides of Psilotum
5.17 View Prepared Slides of Ferns
5.18 View Prepared Slides of Cyrtomium
5.19 View Living Organisms

Content: The term “bryophyte” comes from bryon “tree-moss, oyster-green” and phyton “plant”. The defining features of bryophytes are: Their life cycles are dominated by the gametophyte stage. Their sporophytes are unbranched. They do not have a true vascular tissue containing lignin (although some have specialized tissues for the transport of water). Bryophytes first appeared during the early Paleozoic. They can only survive where moisture is available for significant periods, although some species are desiccation-tolerant. Most species of bryophytes remain small throughout their life-cycle. This involves an alternation between two generations: a haploid stage, called the gametophyte, and a diploid stage, called the sporophyte.