Among the more conservative species present in this unit, that were lacking elsewhere at Eagle Marsh, were Actaea pachypoda, Amphicarpaea
bracteata, Arisaema dracontium, Carex conjuncta, Dryopteris carthusiana, Galium triflorum, Lindera benzoin, and Persicaria arifolia.
petiolata, with other common herbs being Amphicarpaea
bracteata, Geranium maculatum, Circaea lutetiana, Ageratina altissima, and Parthenocissus spp.
Moreover, genera such as Amicia, Amphicarpaea
, Canavalia, Clitoria, Lathyrus, Lotus, Lupinus, Myrospermum, and Orbexilum were restricted to these communities.
Under the light levels typically inhabited by Amphicarpaea
, Apios, Lathyrus, and Vicia (30-50% direct PFD), a plant would spend a substantial fraction of each day, and would conduct most of its photosynthesis, under high levels of irradiance (including side lighting), where leaf N content is limiting (Bjorkman 1981).
Parker (1992), for example, presents evidence for the coadaptation of alleles found in two "biotypes" of a selfing annual, Amphicarpaea
bractea, that are spatially segregated over a 100-m transect.
Individual variation in pathogen attack and differential reproductive success in the annual legume Amphicarpaea
Allium canadense, Amaranthus tuberculatus, Amphicarpaea
bracteata, Angelica atropurpurea, Arenaria serpyllifolia, Artemisia annua, A.
system in the hog peanut, Amphicarpaea
In this study, we provide experimental evidence for both of these predictions in the mutualism between the legume Amphicarpaea
bracteata and its nitrogen-fixing root nodule bacteria (Bradyrhizobium sp.
sugar maple Adiantum maidenhair fern Amaranthus amaranth Ambrosia ragweed Amphicarpaea
The current study used the annual legume Amphicarpaea
bracteata and its associated root nodule bacteria (genus Bradyrhizobium) to investigate this issue.
1 Muhlenberegia sobolifera -- -- -- Desmodium glutinosum -- -- -- Aster anomalus -- -- -- Phlox divaricata -- -- -- Bromus pubescens -- -- -- Festuca subverticillata -- -- -- Sanicula canadensis -- -- -- Amphicarpaea
bracteata -- -- -- Ageratina altissima -- -- -- Tradescantia ohiensis -- -- -- Lactuca canadensis -- -- -- Geum canadense -- -- -- Lespedeza intermedia -- -- -- Others -- 0.