The most destructive is Botrytis cinerea which forms orangebrown or buff specks on the stems, pedicels, leaves and flower-buds, which increase in size and become covered with a delicate grey mould, completely destroying or disfiguring the parts attacked.
A Spikelets upon distinct pedicels and arranged in panicles or racemes.
8, is elongated, and gives off pedicels, ending in single flowers, a raceme is produced, as in currant, hyacinth and barberry.
If there are numerous flowers on a flattened, convex or slightly concave receptacle, having either very short pedicels or none, a a (From Strasburger's Lehrbuch der Botanik, by permission of Gustav Fischer.) FIG.
In Eryngium the shortening of the pedicels changes an umbel into a capitulum.