Mycorrhizae were characterized in roots of young and adult plants of Masdevallia coccinea, determining mycorrhization frequency, intensity and peloton abundance. Roots were taken from five young and five adult individuals grown in a private orchid nursery located in Guatavita, Cundinamarca, Colombia. Mycosimbiont viability was evidenced by the accumulation of formazan inside the roots but no significant differences (p>0.05) in mycorrhization frequency, intensity, peloton abundance or mycosymbiont viability were found between the two plant ages. These results reveal that mycorrhizae were present in the evaluated ages. Colonization percentages did not differ significantly between the two plant ages. Fungus morphology was tolypophagy in all roots of young and adult plants.