Md., N.J., N.C., Mass., S.C., Del., Ala., Fla., Va., Ga., N.Y.
Amphicarpum is a genus of two species, both endemic to the southeastern United States. It differs from all other North American grass genera in its production of subterranean, cleistogamous spikelets. The aerial spikelets occasionally have immature caryopses but, for some unknown reason, these never mature.
Amphicarpum differs from all other North American grass genera in its production of subterranean, cleistogamous spikelets. It has generally been reported that caryopses from the aerial spikelets fail to germinate, but McNamara and Quinn (1977) demonstrated that, at least in A. amphicarpon, this is not true. They found that the caryopses of aerial panicles and their seedlings were less robust than those of the subterranean spikelets. McNamara and Quinn concluded that the cleistogamous, subterranean spikelets usually contributed the largest number of plants to the populations, but that the chasmogamous aerial spikelets provided a potentially important source of genetic variability.
|Author||J.K. Wipff +|
|Distribution||Md. +, N.J. +, N.C. +, Mass. +, S.C. +, Del. +, Ala. +, Fla. +, Va. +, Ga. + and N.Y. +|
|Source xml||https://firstname.lastname@example.org/aafc-mbb/fna-data-curation.git/src/314eb390f968962f596ae85f506b4b3db8683b1b/coarse grained fna xml/V25/V25 1096.xml +|
|Taxon family||Poaceae +|
|Taxon name||Amphicarpum +|
|Taxon parent||Poaceae tribe Paniceae +|
|Taxon rank||genus +|
|Volume||Volume 25 +|