Samples

Microscopical features

1

Cannabis sativa

Detached heads from the multicellular glandular trichomes, oil droplets, upper epidermis of a bract with a part of the underlying palisade. Upper epidermis of a bracteole in surface view showing cluster crystals of calcium oxalate, multicellular, multiseriate glandular trichomes, sclereids, fibrous sclereids, lower epidermis of a bracteole showing anomocytic stomata, covering non-cystolithic trichomes, part of a papilla from a stigma, annularly and reticulately thickened vessels, secretory duct, starches granules

2

Chromolaena odorata

Upper epidermis with palisade parenchyma occurring in two cell layers, spongy mesophyll, sclereids, lower epidermis showing wavy anticlinal cell walls, scalariform vessels, upper epidermis showing sinuous anticlinal cell walls

3

Mitracarpus villosus

Lower epiderm showing anomocytic stomata, unicellular non glandular trichomes, upper epidermis showing sinuous anticlinal cell walls and helicoidal vessels and secretory ducts

4

Pterocarpus soyauxii

Cork in surface, fibres, part of xylem showing parenchymatous cells, some containing prisms of calcium oxalate, fragment of parenchyma, medullary ray, pitted vessels

5

Senna alata

Lower epidermis showing paracytic stomata, upper epidermis showing wavy anticlinal cell wall, glandular trichomes and unicellular nonglandular trichomes, group of fibres with calcium oxalate prism, lower palisade with spongy mesophyll cells, scalariform vessels

6

Tetradenia riparia

Secretory cells, upper epidermis showing wavy anticlinal cell walls, lower epidermis with diacytic stomata, pluricelluar nonglandular trichomes…