Exercise 7 Leaf Morphology

Exercise 7 MORPHOLOGY OF THE LEAF Dagondon, Vanessa Olga Jomocan, Christine Anne Lozanes, Ruther Mae

Date Performed: March 23, 2015 Date Submitted: March 26, 2015

Exercise 7.1 Gross Morphology of the Leaf A DICOTYLEDONOUS LEAF Examine a leaf of Hibiscus rosa-sinensis L. (gumamela), one of the most commonly cultivated shrubs in the tropics. Of what parts does it consist? Record the descriptive terms that apply to it with regard to: 1 the presence or absence of petiole - present 2 the presence or absence of stipule –present 3 form - simple 4 venation - netted 5 leaf arrangement – alternate B MONOCOTYLEDONOUS LEAF Examine and draw a leaf of a monocot leaf (Rhoeo discolor). Label the drawing. See figure 2. C EXTERNAL FEATURES OF DIFFERENT KINDS OF LEAVES 1 Gather some leaves of 5 different plants, paying particular attention to the data called for in the following table. Table 1 Plant 1 2 3 4 5

Petiole

Stipules

Form

Venation

Present Absent Present Present Absent

Absent Absent Present Present Absent

Compound Simple Simple Simple Compound

Netted Parallel Netted Netted Parallel

Plant

1 2 3

Shape of Apex Acuminat e