| claviceps | A genus of ascomycetous fungi, family clavicipitaceae, order clavicipitales, parasitic on various grasses; the sclerotia contain several toxic alkaloids. Claviceps purpurea on rye causes ergotism. (12 Dec 1998) |
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| purpurea glycosides | The cardioactive precursor glycosides of Digitalis purpurea; they are structurally identical with desacetyl-lanatosides A and B, respectively. See: lanatosides A, B, and C. (05 Mar 2000) |