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.
There is good evidence that many of the seeds belonged to Cordaitales, especially those seeds which had a flattened form, such as Cardiocarpus, Cycadinocarpus, Samaropsis, &c. Seeds of this kind have been found in connexion with the Cordaianthus inflorescences; the winged seeds'of Samaropsis, borne on long pedicels, are attributed by Grand' Eury to the genus Dorycordaites.
15, 4 and 7), as investigated in English, French, Italian, and American specimens, may be briefly described as a short lateral shoot or peduncle, arising in a leaf-axil and terminating in a bluntly rounded apex, bearing numerous linear bracts enclosing a central group of appendages, some of which consist of slender pedicels traversed by a vascular strand and bearing a single terminal ovule enclosed in an integument, which forms a distal canal or micropyle.
Pedicels occur sterile appendages consisting of slender stalks, terminating in distal expansions, which form a fleshy covering over the surface of the flower, leaving small apertures immediately above the micropyles for the entrance of the pollen-grains.
7, Bennettites, female flower in longitudinal section; f, apex of peduncle; g, bracts (shown in surface view in 4); h, seeds and seminiferous pedicels; i, interseminal scales.
In Eryngium the shortening of the pedicels changes an umbel into a capitulum.