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Meaning of certain
biometric variables
Extracted from Tulloss and J.
Lindgren. 2005. Mycotaxon 91: 193  194.
[a/b/c]  This
notation proceeds each set of spore measurements in the key. The
number "a" is equal to the number of spores measured.
The number "b" is equal to the number of basidiomes
from which these spores came; and "c" is equal to the
number of collections from which the basidiomes were taken.
(k) m  n (p)
 All ranges of measurements and computed values are presented in this
format. The value of "k" is the smallest observed or
computed value; and the value "p" is the largest
observed or computed value. If "k" is omitted then
the value of "m" is the smallest value observed/
computed. If "p" is omitted, then the value of "n"
is the largest value observed/computed. The value of "m"
is the 5^{th} percentile value for the data. The value of
"n" is the 95^{th} percentile value for the
data.
L = the average spore length computed
for one specimen examined and the range of such averages
L´
= the average spore length computed for all spores measured
W
= the average spore width computed for one specimen examined and the
range of such averages
W´
= the average spore length computed for all spores measured
Q = the ratio of
length/breadth for a single spores and the observed range of the
ratio of length/breadth for all spores measured
Q = the average value of Q computed
for one specimen examined and the range of such averages
Q´ =
average value of Q computed for all spores measured
w_{cs} = width of the central
stratum of a lamella
w_{st}near = distance from
an outer margin of the central stratum to the nearest base of a
basidium
w_{st}far = distance from an
outer margin of the central stratum to the farthest base of a
basidium on the same side of the central stratum.
The term
"subhymenial tree" is used for that portion of a lamella
comprising diverging elements located between the central stratum and
the hymenium. The subhymenial tree excluding the subhymenium is termed
the "subhymenial base."
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Last changed 11 August 2006.
This page is maintained by R.
E. Tulloss.
Copyright 2006 by Rodham E. Tulloss.
