Fatty acid composition ofClaviceps species. Occurrence of (+)-threo-9, 10-dihydroxystearic acid.

The fatty acids from sclerotia ofC. purpurea and of four otherClaviceps species have been examined chromatographically, and all contain greater or lesser amounts of various oxygenated fatty acids.C. sulcata was the most unusual in that it contained some 60% of (+)-threo-9, 10-dihydroxystearic acid.