- Lycoperdon? Parque Archeologico San Agustin DW Ms
- Lycoperdon or Morginella puffball seen in Chuarguayaco near Pitalito
- Looking and the snake skin stem, big ring and gills of Macrlepiota colombiana in Chauna
- Looking a lot like Ossicaulis sp. growing on on wood
- Lizard with blue cheek and orange head seen in Rio Claro, Antioquia
- Leucocoprinus brunneoluteus seen in Isla Escondida
- Leucocoprinus brunneoluteus cap
- Leratiomyces ceres - Chip cherry growing in the Botanical Garden in Bogota
- Lentinus concavus in Isla Escondida, Putumayo
- Lentinula aciculospora seen in Pauna, Boyaca
- Lentinula aciculospora - Colombian Shiitake seen in Chauna, Boyaca
- Lentinula aciculispora, Colombia's wild Shiitake growing on the wood of Trigonobalanus excelsa, a very rare and endangered oak relative, known in Colombia as roble negro, Charguayaco, near Pitalito, Huila
- Leaf mimicking katydid - Pterochrozinae in the shower of the Isla Escondida lodge
- Laetiporus sulpherus?, Sulfur shelf or Chicken of the woods growing in Charguayaco
- Laetiporus sulpherus? growing in Charguayaco
- Lactifluus deceptivus, formerly known as Lactarius deceptivus (Peck 1885), the Deceiving milkycap.
- Lactifluus deceptivus gills seen in Chauna's oak forest, Boyacá. Rather broad gills and a unpleasant bitter, spicy taste when fresh are typical. Cooking will neutralize the unpleasant taste and render this milkycap edible. However, my system was not happy
- Intriguing orange flower seen in Isla Escondida
- Intriguing orange flower seen in Isla Esacondida
- in spore dust covered fungus on galls