Ophioglossum reticulatum is the organism with the highest recorded chromosome number. A count from India found approximately 630 pairs. It has not been counted in the neotropics.

Ophioglossum reticulatum is the organism with the highest recorded chromosome number. A count from India found approximately 630 pairs. It has not been counted in the neotropics.
This is one of the most common lycophytes in Itatiaia National Park. Plants are usually terrestrial and hanging over the road banks. Be careful not to confuse it with P. comans, a Brazilian endemic that is more compact and shorter, but otherwise approximately twice as...
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