108 



PLANTS AND MAN 



Phylum Ghlorophyta: 

 Phylum Phaeophyta: 



Phylum Rhodophyta: 



Phylum Mygophyta: 

 Phylum Bryophyta: 



Phylum Pteridophyta : 



Phylum Spermatophyta: 



Class Gymnosperms: 

 Glass Angiosperms: 



chlorophyll-bearing thallus plants 

 with no accessory pigment — Pond- 

 scums and Green Seaweeds. 

 chlorophyll-bearing thallus plants, 

 aquatic and chiefly marine, with fuco- 

 xanthin obscuring the chlorophyll — 

 Brown Seaweeds, Kelps. 

 chlorophyll-bearing thallus plants, 

 aquatic and chiefly marine, with 

 phyco-erythrin obscuring the chloro- 

 phyll — Red Seaweeds. 

 chlorophyll-deficient thallus plants, 

 chiefly terrestrial — Molds, Mildews, 

 Mushrooms. 



amphibious land plants with green 

 independent gametophytes and para- 

 sitic sporophytes, no true roots or 

 leaves — Liverworts, Mosses. 

 more completely terrestrial plants 

 with green and independent sporo- 

 phytes as well as gametophytes; true 

 roots, stems and leaves but no seeds — 

 Ferns, Club-mosses, Horse-tails. 

 most highly evolved land plants, with 

 dominant green sporophytes and 

 microscopic parasitic gametophytes; 

 true roots, stems and leaves; seed 

 habit. 



exposed ovules and seeds; no fruits 

 Cycads, Maidenhair Tree, Conifers. 

 imbedded ovules and seeds in fruits. 



Sub-class Dicotyledonous Plants (Dicots). 



Representative Families — 

 Walnut Family 

 Elm Family 

 Beech Family 

 Pink Family 



