Anti-GFP antibodies and MBP-lectin fusions showed Jonah(1) lectin and glycopolymers to which it binds are accessible in the ectocyst layer of mature cyst walls, while Luke(2) and Leo lectins and the glycopolymers to which they bind are, for the most part, inaccessible in the endocyst layer and ostioles. This evidence concerns the gene MBP and cyst.