Sweet grass (_Hierochloe odorata_, L.), to be distinguished from sweet vernal grass, was encountered only once in a bag made by the Michigan Ottawa Indians (MAIHF 19-7125). Canebrake (_Arundinaria tecta_, Muhl.) was a common source of fiber for moccasins and rope. It seems to have been utilized by most of the prehistoric cave and rock-shelter peoples within its range (OSHAM 332-27). TYPHACEAE, J. St. Hil. (Cat-tail Family) The cat-tail (_Typha latifolia_, L.) was observed in a mat found in the caves of Tennessee (USNM 132252). ZEA MAYS, L. (Indian Corn) Indian corn occurred only once. This single occurrence has no real significance as to the frequency of its use, for all specimens in which it was obvious that corn was the material used were not sampled. The sample noted here was found in a knife made by the Micmac Indians (McGU H76). The material was a cornstalk which had been subjected to considerable pressure to force out the juice and pith to bring the hardy flinty layers into juxtaposition. It was then used as a wedge to fasten the knife handle. It was extremely hard and durable. The above are the monocotyledons encountered in this survey, in all some twenty-four objects using this material. It should be noted that these materials are readily adaptable to use since they need very little preparation and are frequently used entire. Sometimes the fiber is removed from the surrounding materials by simply letting them ret. Yucca and _Tillandsia_ are ordinarily used entire. The grasses were used as they were gathered, simply twisted or braided. _Tillandsia_ is the only plant of this group which was used for the manufacture of fabrics as in the blanket above noted (p. 7). The specimen of cornstalk was an exception and its preparation was evidently for a specific purpose. Palmetto fiber is especially adaptable. At the base of the leaves, where they join the main stem is a large mass of more or less loose or loosely interwoven fibrous material which needs only straightening to be ready for use. DIOCOTYLEDONOUS SPECIES ANONACEAE, D. C. (Custard-Apple Family)