References
- Vartia , K.O. 1973 . The Lichens , Edited by: Ahmadjian , V. and Hale , M.E. 547 – 561 . New York : Academic Press .
- Richardson , D.H.S. 1988 . CRC Handbook of Lichenology , Edited by: Galun , M. Vol. 3 , 93 – 108 . Boca Raton, FL : CRC Press .
- Lawrey , J.D. 1989 . Bryologist , 92 : 326
- Elix , J.A. 1996 . Lichen Biology , Edited by: Nash , T.H. III . 154 – 181 . Cambridge : Cambridge University Press .
- Hobbs , C. 1986 . Usnea: The Herbal Antibiotic , 913 Capitola, CA : Botanica Press .
- Elix , J.A. and Engkaninan , U. 1975 . Aust. J. Chem. , 28 : 1793
- Ramesh , P. and Baig , E.S.A. 1994 . Ind. J. Chem., Sect. B: Org. Chem. Including Med. Chem. , 33B : 899
- Eloff , J.N. 1998 . Planta Med. , 64 : 711
- Hylands , P.J. and Ingolfsdottir , K. 1985 . Phytochemistry , 24 : 127
- Elix , J.A. , Adler , M.T. and Wardlaw , J.H. 1996 . Aust. J. Chem. , 49 : 1175
- Huncek , S. and Yoshimura , I. 1996 . Identification of Lichen Substances , 313 – 353 . Berlin, Heidelberg, New York : Springer .
- Eifler-Lima , V.L. , Sperry , A. , Sinbandhit , S. , Boustie , J. , Tomasi , S. and Schenkel , E. 2000 . Magn. Reson. Chem. , 38 : 472
- Papadopoulou , P. , Tzakou , O. , Vagias , C. , Kefalas , P. and Roussis , V. 2007 . Molecules , 12 : 997
- Sultana , N. , Hartley , T.G. and Waterman , P.G. 1999 . Phytochemistry , 50 : 1249
- Slusarenko , A.J. , Longland , A.C. and Whitehead , I.M. 1989 . Bot. Helv. , 99 : 203
- Sultana , N. and Afolayan , A.J. 2007 . Nat. Prod. Res. , 21 : 889
- Ingolfsdottir , K. 2002 . Phytochemistry , 61 : 729