Suggestions for atypical crypto
zonneveld (Tue, 23 Nov 2004 03:58:41 PST)

Excuses for the fact thast the message was send four times. Two
suggestions have come forth to explain the anomalous value for the
large cryptostephanus vansonii Firsts Waddick suggested: ""all
plants in culture are tetraploid. Two objections: the number in
Cryptostephanus vansonii has been counted as 2n=24 as Clivia
has 2n = 22 this seems a diploid. Further if 44.6 is a tetraploid a
triploid would be 33.5 not 36.4 pg. Morevover it was grown from
seed. G Duncan suggested that it might be a cross with Clivia
Apart from the white flowers the DNA does not fir either. Excluding
Clivia mirablis, the lowest Clivia value is 34.7 for C nobilis ( C
miniata has 39.2) If the plant with 36. 4 is the hybrid the value for
the other parent ( with one parent 44.6) would be 28.2 pg not 34.7.
So I await other suggestions
Ben J.M.Zonneveld
Institute of Biology,Leiden University, Clusius lab
Wassenaarse weg 64, 2333 AL Leiden, The Netherlands
Zonneveld@rulbim.Leidenuniv.NL
Fax: +31-71-5274999. min temp -10C (15F)