Bio 111 - Lecture 9

Bio 111 - Lecture 9 - Biology 111 Lecture 8 - Kingdom...

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Biology 111 Lecture 8 - Kingdom Plantae - Vascular Plants October 8, 2007 I. Introduction to Vascular Plants A. Characteristics of Vascular Plants 1. dominant independent sporophyte (n haploid) 2. smaller simpler gametophyte (2n diploid) 3. some phyla have seeds, some don " t 4. vascular tissues B. What is vascular tissue? 1. Vascular : like pipelines 2. Tissue : group of cells that share a function -Two kinds of vascular tissue - xylem : transports water and minerals up from the roots - phloem : transport sugars from leaves to other parts of the plant - xylem and phloem are complex tissues made of several kinds of cells - one or more kinds of conducting cells - non-conducting cells II. Several Phyla of Vascular Plants - two phyla of seedless vascular plants - Lycophyta - Pterophyta - several phyla of seed plants , which are always vascular A. Phylum Lycophyta - Lycopodiophyta club mosses, spike-mosses and quillworts 1. Gametophyte very small in soil; short live 2. Sporophyte - true roots with vascular tissue
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Bio 111 - Lecture 9 - Biology 111 Lecture 8 - Kingdom...

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