In connection with investigations of the legumes of the northcentral United States, seeds of the subject species were studied. This paper is concerned with the identification of seeds of the individual species; the seed characters of subfamilies herein treated are discussed in another report. Superficial characters are employed in the keys, and dissection of the seeds is not required. Outline diagrams are presented to facilitate interpretation of shape and size. These are all drawn to the same scale except Gymnocladus dioica and Gleditsia aquatica which are one-half the size of the others. Two terms require definition. Face line: A horseshoe shaped line on each lateral face of the seed, the open end, towards the base (hilum end). Face area: An obovate or enclosed area on each lateral face of the seed. This area is lighter colored than the remainder of the seed surface. These markings are appropriately illustrated in the diagrams.
Proceedings of the Iowa Academy of Science
©1955 Iowa Academy of Science, Inc.
"Key to Seeds of Caesalpinioideae and Mimosoideae of North-Central States,"
Proceedings of the Iowa Academy of Science, 62(1), 146-149.
Available at: https://scholarworks.uni.edu/pias/vol62/iss1/17