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