ANOTHER JUNIPER (CUPRESSACEAE) IN JEFF DAVIS COUNTY TEXAS? WE'RE NOT CONVINCED

1 Pages·2003·0.51 MB·English

by  John P Karges

ANOTHER
JUNIPER (CUPRESSACEAE) INJEEE DAVIS
COUNTY NOT CONVINCED
TEXAS^ WE'RE
CZech
JohnP.Karges James
The Nature Conservancy Department of Biology
Box 2078 Su! Ross State University
P.O.
TX TX
Fort Davis, 79734, U.S.A. Alpine, 79832, U.S.A.
[email protected], [email protected].
Within volume twenty, number two, of this journal, Griffith and Bartel (2002)
&
answered our request (Karges Zech 2001) further study and documenta-
for
tion of Cuprcssus arizonica within the Davis Mountains of Jeff Davis County,
Texas. While the effort has been made, we found several problems with the at-
main pomts concern Of
tempt, including the of that follow. the three additional
specimens sampled from Davis County there no indication that any were
Jeff is
collected from the Davis Mountains, alone the Davis Mountains Preserve
let
C
why
County
(DMP). We're puzzled as to fresh material of the Jeff Davis
DM?
arizonica or Juniperus deppeana from the were not included chloro-
for
DNA
Both would have been made upon
plast analysis. available request. Griffith
C
and Bartel (2002) cite two specimens of the Jeff Davis County arizonica.
Karges and Hedges 2480 the only existing specimen, a second specimen, Karges
is
was and and
never collected. Griffith Bartel's (2002) reference discus-
to,
s.n.,
mixed specimen most Hedges comm.)
sion a puzzling, since neither (pers.
of, is
nor Karges collected reproductive material.
DNA
County
Perhaps the chloroplast data does suggest that the Davis
Jeff
Arizona Cypress Alligator Juniper. However, this study's discrepancies, along
is
We
63%
with the admittedly low bootstrap, leave us unconvinced. recog-
still
C
nize the tree in question as arizonica, and most importantly, continue to en-
courage study unique
additional, careful, of this
tree.
REFERENCES
and 2002. A Cypress {Cupressus an 7on/ca,Cupressaceae)in
Griffith, ^.P. S.C. Bartel.
Davis County,Texas?Sida 20:585-592.
Mo
new
Karges, .and J.C.Zech. 2001. Cupressus or/zon/ca(Cupressac eae) to the Davis
J.