Lactarius repraesentaneus namely repraesentins B and C. These compounds were shown to promote the radicle elongation of lettuce seedlings by 136%, 118% and 184% at 67 ppm, respectively. Other compounds reported in 2006 are repraesentins D, E, and F. Repraesentin E showed the strongest growth promotion activity, 164% at 3.6 µm, of the three compounds toward the radicle elongation of lettuce seedlings. Lactarius repraesentaneus Lactarius repraesentaneus, commonly known as the northern bearded milkcap, the northern milkcap, or the purple-staining milkcap, is a species of fungus in the Russulaceae family. It has a northerly distribution, and is found in temperate regions of North
Shank (sewing) Shank (sewing) A shank is a device for providing a small amount of space in between a garment and a button. Shanks are necessary to provide space for fabric to sit in between the button and the garment when the garment is buttoned. Shanks also allow a garment to hang and drape nicely. There are two types of shanks: Shank buttons have a hollow protrusion on the back through which thread is sewn to attach the button. Button shanks may be a separate piece added to the back of a button, or be carved or moulded directly onto the back