sentences:  The leaves are arranged alternately in one plane along a flattened, unbranched pseudobulb which can grow up to 1 m in length but which is generally shorter.As in most Monocotyledons the base of each leaf is extended into a leaf sheath which completely encircles the stem, in this species they are greatly elongated and extend the full length of the internode.The sheaths are 2 or 3 mm wide and in contrast to those of "E. autumnalis" they are difficult to pull off.