The cylindrical cells are attached with their head to the lowermost layer. The lowermost lateral scales often have an anterior yellow edge. It is the lowermost of two chaff-like bracts enclosing the grass floret. Lateral branches are alternate (the lowermost ones can be nearly opposite). The Clackamas River is not navigable, except for the lowermost portions. Most of these tremors occurred below the surface, indicating they originated within the lowermost crust. All dorsal scale rows have keels, although those on the lowermost scale rows are weak. The lowermost part of the basin is strongly marshy. The lowermost link of the parallelogram is fixed to two rigid supports. Burn is the lowermost tributary of the River Lyne. The lowermost Wye forms the boundary between England and Wales. The flowering begins from the lowermost buds and gradually moves upward, so-called acropetal flowering. Its sedimentation lasted probably into the lowermost Ordovician. Rhizoids occur branching from the lowermost cells. In the lowermost ~200 km of the mantle, bridgmanite isochemically transforms into post-perovskite.