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The genus Cinnamomum

The genus Cinnamomum

The genus Cinnamomum

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Indian Cassia 203<br />

Ecology and distribution: Found abundantly in both wild and cultivated conditions in<br />

Meghalaya up to an altitude of 1250 m, and in the North Cachar Hills of Assam up to<br />

an altitude of 1050 m.<br />

Use: <strong>The</strong> leaves are commonly known as Teji-bol or Dieng latyrpet in Meghalaya. It is the<br />

main component of the tejpat market of Shillong from where it is transported to other places.<br />

Other Species Traded as Tejpat<br />

C. impressinervium Meissn<br />

This is a mid-sized evergreen tree; 6–7.5 m tall; branchlets terete and slender; bark<br />

rough, aromatic, brown, inside creamish-brown, on exposure turning brown, 6–10 mm<br />

thick; leaf buds silky; leaves alternate, sub-opposite or opposite on the same twig,<br />

coriaceous, smell like tejpat leaves, glabrous, shining above, dark green, pale below,<br />

elliptic-oblong to elliptic-lanceolate, apex acute to acuminate, base decurrently acute,<br />

variable in size, 2.5–3.8 7–14 cm, triplinerved, lateral nerves reaching near the base<br />

of the acumen, suprabasal, midrib stout, 2° nerves sub-horizontal, nervules not so<br />

distinct; petiole stout, slightly concave above, 0.8–1.1 cm long; panicle sub-terminal<br />

to axillary, shorter than leaves, up to 6.5 cm long, glabrate, perianth 3 3, sub-equal,<br />

minutely puberulous on truncate cup-shaped fruiting tepals, pedicel obconic, pedicel<br />

with fruiting tepal up to 8 mm long.<br />

Significant foliar epidermal and venation characteristics: Epidermal cells pentagonal to<br />

polygonal and highly sinuous, hypostomatic, stomata sunken, stomata/mm2 550,<br />

stomatal index 19.52, areoles tetragonal to polygonal, vein endings simple, average<br />

frequency of areole/mm2 7.88 (Baruah and Nath, 1997, 1998).<br />

Significant essential oil characteristics: Leaves are aromatic, similar to that of C. tamala<br />

leaves and yield 2.00% (FWB) volatile oil, oil yellowish-brown in colour. Refractive<br />

Index (25 °C) 1.5320. On GC analysis, ten components representing 96.80% of the<br />

total oil of the leaves can be identified (Nath et al., 1999) where eugenol alone constitutes<br />

88.3% of the oil. <strong>The</strong> other components of above 1% concentration in the oil are<br />

-3-carene (1.6%), limonene (4.1%) and eugenyl acetate (1.1%).<br />

Phenology: Flowers from February–April; Fruits from May–August.<br />

Occurrence and distribution: Found in the North Cachar Hills and Cachar districts of<br />

Assam at an altitude between 800–1050 m, but is rare in other areas of north-east<br />

India. Also seen under cultivated stands in those areas.<br />

Use: Leaves are used as ‘best quality tejpat’ among the people of the North Cachar Hills<br />

and Cachar districts of Assam and is even sold in the local markets under the same name.<br />

C. sulphuratum Nees<br />

A moderately sized evergreen tree; bark dark brown; leaves alternate, sub-opposite or<br />

opposite on the same twig, coriaceous, aromatic, glabrous, shining above, dark green,<br />

pale beneath, elliptic-lanceolate to narrowly ovate-lanceolate, apex sharply acute to<br />

shortly acuminate, base acute to cuneatly acute, variable in size, 2.6–4.8 9.5–18 cm,<br />

triplinerved, lateral nerves not reaching the tip of apex, basal to suprabasal perfect or

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