Terminal flowers, male sterile, leaves medium, light green very crisp. Strain is highly seed sterile. odor weak spearmint. backcrosses of this with the German strain show that the f1s were highly variable in morphology. Some had weak pepermint odor, others were high alcohol and ester carvone.M. aquatica L. var. crispa (L.) Benth., from Tucker who obtained it from Mrs. J. Jones, Bethlehem, PA. Originally from a private source in Bethlehen, PA. (MJM - appears to be a hybrid between M. aquatica and M. crispa. Flowers terminal and male sterile. Leaves medium, light green, very crisp. Odor weak spearmint. Strain highly seed sterile but a few hybrids with the German strain of aquatica (10176) were sufficint to show that the hybrids were highly variable in morphological appearance. Some were flat-leaved, some were crisp-leaved. Six had a weak peppermint odor with high menthofuran, while 18 were high alcohol and ester carvone types having a very unusual oil constituent).