Overview
The Delicate Lattice Stinkhorn (Clathrus delicatus) is an astonishingly intricate clathroid basidiomycete fungus native to the humid subtropical rainforest understories of South America’s Atlantic Forest and Southern Cone. Resembling a miniature, hollow soccer ball woven from delicate white-to-pale-salmon lace, this ephemeral fungal wonder emerges from a subterranean ‘egg’ to expand into a geometric lattice structure, utilizing intense olfactory mimicry to attract insect spore vectors.
Biology and Physical Characteristics
Clathrus delicatus begins development as a partially submerged, gelatinous white-to-grayish subterranean egg (volva). When environmental moisture peaks following warm subtropical rains, internal hydraulic turgor pressure ruptures the peridium, allowing the compressed receptacle to expand rapidly in less than two hours. The mature fruiting body is a hollow, subglobose cage composed of 10 to 20 polygonally arranged, slender tubular arms interconnected in a breathtaking geodesic latticework. Coated on the inner surface of the lattice bars is an olive-brown, mucilaginous spore-bearing gleba that emits a fetid, rotting-meat odor packed with volatile dimethyl sulfides.
Behavior and Ecology
Operating as a primary saprotrophic decomposer, the extensive subterranean mycelium of Clathrus delicatus breaks down tough cellulose and lignin polymers in decaying forest litter and woody mulch, recycling vital organic carbon and minerals back into rainforest soils. The vile stench emitted by the gleba mimics animal carrion, attracting necrophagous calliphorid blowflies, dung beetles, and flesh flies from across the forest understory. As the insects walk across the sticky gleba to feed on sweet sugars, microscopic basidiospores adhere to their bristly tarsi and mouths, ensuring widespread aerial dispersal when the insects fly to new feeding grounds.
Conservation and Human Impact
Assessed as Least Concern, Clathrus delicatus is widely distributed across protected national reserves within the subtropical Atlantic Forest biome of southern Brazil and northern Argentina. Although its individual fruiting bodies are ephemeral—collapsing into a delicate puddle of mulch within 24 to 48 hours—its subterranean mycelial network persists indefinitely in damp organic soils. Fungal conservation initiatives celebrate this species as an ambassador for the immense, often overlooked biodiversity of Neotropical macrofungi.
Interesting Factoid
This incredible fungus pops out of a squishy underground ‘egg’ and inflates in two hours into a hollow white cage that looks like an intricate 3D-printed lace soccer ball, smelling like rotting meat to trick flies into carrying its spores!
Last updated: October 2026