Developmental patterns, developmental sequence, deposition of secondary wall material, and maturation of macrosclereids and osteosclereids were similar in Desmodium canadense and Cassia fasciculata. Both species apparently lack a well-defined strophiolar region. Two distinct differences were observed in the mature seed coat. One is the presence of a single row of macrosclereids in the hilar region of Cassia fasciculata and a double row of macrosclereids in the hilar region of Desmodium canadense. The second is the appearance of "spicule-like" structures, apparently enveloped laterally by a cellulosic matrix in the cuticularized layer of Cassia fasciculata.
Proceedings of the Iowa Academy of Science
©1969 Iowa Academy of Science, Inc.
Arnholt, Philip J.
"A Comparative Study of the Ontogeny of Macrosclereids and Osteosclereids in the Integument of Cassia Fasciculata and Desmodium Canadense,"
Proceedings of the Iowa Academy of Science, 76(1), 20-31.
Available at: https://scholarworks.uni.edu/pias/vol76/iss1/5