S/n

Taxa

Outline

Number of Secretory ducts

Vascular bundle

Type of crystal

Cell inclusions

Sclerenchyma cells in

Medullary plate

Adaxial

Abaxial

Adaxial

Abaxial

shape

Number of stands

Phloem

Xylem

Number of layers

1.

M. africana

Convex

Protruded round base

Absent

4 - 6

u-shaped

1

Prismatic, styloid, druses

Absent

Present

Absent

2 - 3

Absent

2

M. barombiensis

Convex

Protruded round base

Absent

4

u-shaped

1

Prismatic, styloid, druses

Absent

Present

Absent

2 - 3

Absent

3.

M. coriacea

Convex

Protruded round base

2

8 - 20

Closed u-shaped

1

Prismatic, styloid, druses

Starch grains

Present

Present

1 - 5

Present

4.

M. iodocarpa

Convex

Protruded round base

2

4 - 8

u-shaped

1

Druses

Absent

Present

Absent

2 - 3

Absent

5.

M. malacocarpa

Convex

Protruded round base

Absent

2

u-shaped

1

Prismatic styloid, druses

Absent

Present

Absent

1 - 4

Absent

6.

M. oligoneura

Flat

Protruded round base

Absent

8 - 10

u-shaped

3

Druses

Absent

Present

Present

1 - 5

Present