TY - JOUR
T1 - Endemism in rock outcrop plant communities of unglaciated eastern United States
T2 - an evaluation of the roles of the edaphic, genetic and light factors
AU - Baskin, J. M.
AU - Baskin, C. C.
PY - 1988
Y1 - 1988
N2 - Within the unglaciated E USA edaphically-controlled herbaceous plant communities occur on unshaded rock outcrops in shallow soil developed from a variety of rock types. The most distinctive features of the flora of these communities are their endemic taxa. Many endemics are not restricted to a single geological substratum, and they grow equally well, or better, in non-outcrop as in outcrop soil. Several endemics exhibit intraspecific variability in breeding system, flower colour and/or enzyme pattern, so it is unlikely that lack of genetic variation is the cause of endemism. A requirement that the endemics have in common for growth and survival is a high photosynthetic photon flux density. -from Authors
AB - Within the unglaciated E USA edaphically-controlled herbaceous plant communities occur on unshaded rock outcrops in shallow soil developed from a variety of rock types. The most distinctive features of the flora of these communities are their endemic taxa. Many endemics are not restricted to a single geological substratum, and they grow equally well, or better, in non-outcrop as in outcrop soil. Several endemics exhibit intraspecific variability in breeding system, flower colour and/or enzyme pattern, so it is unlikely that lack of genetic variation is the cause of endemism. A requirement that the endemics have in common for growth and survival is a high photosynthetic photon flux density. -from Authors
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U2 - 10.2307/2845343
DO - 10.2307/2845343
M3 - Article
AN - SCOPUS:0024198483
SN - 0305-0270
VL - 15
SP - 829
EP - 840
JO - Journal of Biogeography
JF - Journal of Biogeography
IS - 5-6
ER -