X CONTENTS 



Pages 

 Plant Hairs or Teichomes. — Definition; forms; functions 29-30 



The Leaf. — Definition; functions; parts; Complete Leaf; sessile; petiolate; 

 exstipulate; stipulate; structure of blade. Leaf Venation: parallel; 

 reticulate; pinnately and palmately veined. 30-^2 



Forms of Leaves. — Simple and Compound, (a) General Outline: ovate; 

 elliptical; oblong; oblique; orbicular; peltate; filiform; obovate; oblance- 

 olate; cuneate; spatulate; acerose; deltoid, (b) Apex: acute; acuminate; 

 obtuse; truncate; mucronate; cuspidate; aristate; emarginate; refuse; 

 obcordate. (c) Base: cordate; reniform; hastate; auriculate; sagittate, 

 (d) Margin: entire; serrate; dentate; crenate; repand; sinuate; incised; 

 runcinate; lobed; cleft; parted; divided. Forms of Compound Leaves . 32-34 

 Leaf Texture. — Membranous; succulent; scarious; coriaceous 34 



Leaf Color. — Variations in color . . 34 



Leaf Surface. — Glabrous; glaucous; pellucid-punctate; scabrous; pubescent; 



villose; sericious; hispid; tomentose; spinose; rugose; verrucose -34-35 



Leaf Duration. — Evergreen; deciduous; carducous; fugacious; effect of 



climate. .... . 35-36 



Leaf Insertion. — Definition; radical; cauline; ramal; perfoliate; clasping; 



connate-perfoliate; equitant. . . . 36 



Phyllotaxy. — Definition; alternate; opposite; verticillate or whorled; fas- 

 cicled or tufted; law of spiral arrangement; leaf ranks 36-37 

 Vernation. — Definition; inflexed; conduplicate; circinate; plicate; involute; 



re volute . 37 



Inflorescence or Anthotaxy. — Determinate, Indeterminate; Mixed; Parts 



of Inflorescences; Forms of Determinate and Indeterminate Inflorescences. 3 7-40 

 Prefloration. — Valvate; vexillary; contorted . . 40-41 



The Flower. — Definition; floral parts; distinguishing characteristics; Peri- 

 gone. 41-42 

 The Calyx. — Definition; parts; physical characteristics; connation; kinds 



and forms; persistence; adnation . 42-43 



The Corolla. — Definition; physical characteristics; parts; functions; forms 



of Corolla and Perianth 43-44 



The Androecium or Stamen System. — Definition; structure; terms denoting 

 number of stamens in flower; terms denoting connection between stamens; 

 terms denoting position; terms denoting attachment of another to fila- 

 ment; dehiscence. Pollen: description; forms . 44-46 

 The Gynoecium, or Pistil System. — Definition; Gymnospermous and 

 Angiospermous; parts; the pistil a modified leaf; carpel: dehiscence; 

 compound pistil; an ovule a transformed bud; position of ovules in ovary; 

 Gymnospermous and Angiospermous ovules; structure of Angiospermous 

 ovule; shape of ovule 46-47 

 The Placenta. — Definition; placental arrangement. 47-48 

 Pollination. — Definition; Close and Cross Pollination; terms applied to 



plants pollinated by various agencies , 4S-49 



Formation of Male and Female C vmetoviivtes. 49 



Fertilization in Angiosperms. — Process; formation of embryo and endo- 

 sperm ..... . 49-50 



