Spectrum is an Apple Macintosh program for finding bipartition spectra
molecular and distance data, according to the method of Hendy et al.
for moderately sized data sets (up to 18 taxa). The program also
branch-and-bound search for the "closest tree" - that is, the tree whose
expected spectrum is closest to the spectrum derived from the observed
It is free, and is now available from the Glasgow Taxonomy WWW site:
If you use the program please register it my sending me an email message,
and do let me know if there are any problems you have with it.
mcharles at udcf.gla.ac.uk