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Ecological, Social and Commercial Role of Lichens in India with ...

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Acdemia Arena 2010, Supplement 0201<br />

http://www.sciencepub.net<br />

T.O.A- Toluene 180ml, dioxane 60ml: 8- acetic acid.<br />

Three dimensional TLC has also been used to f<strong>in</strong>d out <strong>and</strong> determ<strong>in</strong>e lichen substances<br />

which are not detected by one directional T L C. Further sophistication has been achieved by the<br />

use <strong>of</strong> high performance chromatography (HPLC) <strong>and</strong> spectrometry. These techniques are much<br />

expensive <strong>and</strong> usually beyond the reach <strong>of</strong> an average lichenologist <strong>and</strong> therefore not detailed here.<br />

Key to the lichen genera <strong>of</strong> Chopta<br />

1 Thallus leprose-crustose………………………………………… Group I<br />

1a Thallus otherwise……………………………………………… 2<br />

2 Thallus foliose…………………………………………………… GroupII<br />

2a<br />

Thallus fruticose or dimorphic………………………………....... Group III<br />

Group I<br />

1a Thallus leprose………………………………………………… 2<br />

1b Thrallus crustose………………………………………………… 3<br />

2a<br />

Thallus byssaceous or crustose leprose, yellow to yellowish<br />

green…………………………………………………<br />

Chrysothrix<br />

2b Thallus leprose, bluish-white…………………………………… Lepraria<br />

3a Thallus K + purple…………………………………………….. 4<br />

3b Thallus K -…………………………………………………….. 5<br />

4a Thallus orange above, brown black below……………………… Ioplaca<br />

4b Thallus yellow to orange to red above, not brown black below… Caloplaca<br />

5a Ascocarps perithecioid………………………………………….. 6<br />

5b Ascocarps apothecioid………………………………………… 7<br />

6a Spores simple, paraphyses gelat<strong>in</strong>ized………………………… Verrucaria<br />

6b<br />

Spores transversely septate, paraphyses simple…………………. Pyrenula<br />

7a<br />

Apothecia periphecioid, disc open<strong>in</strong>g by pore, apothecia<br />

immeresed <strong>in</strong> thall<strong>in</strong>e verrucae………………………………...<br />

Pertusaria<br />

7b Apothecial disc wide open apotheciod to elongate lirellate…… 8<br />

39

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