|. —OENOTHERA HYBRID. Fasciations developed from a bifurcated rosette. 
2,.—OENOTHERA BIENNIS. Grooved stem with fasciation above. 
3.—OENOTHERA CRUCIATA. Ring fasciation. 
4.—OENOTHERA BIENNIS. Fasciated rosette. 
(See also text figure.) 
