About Suillus granulatus (L.) Roussel
Suillus granulatus (L.) Roussel has an orange-brown to brown-yellow cap that is sticky when wet and shiny when dry. Cap diameter is typically 4 to 12 centimetres (1+1⁄2 to 4+3⁄4 inches). Its pale yellow stem is around 4–8 cm (1+1⁄2–3+1⁄4 inches) tall and 1–2 cm (3⁄8–3⁄4 inch) wide, with uniform thickness. The stem apex has tiny brownish granules, and the stem has no ring. Small pale yellow tubes and pores release pale milky droplets when young. The flesh of the fungus is also pale yellow. Suillus granulatus grows in association with pine trees (Pinus) on both calcareous and acidic soils, and sometimes grows in large populations. It is the most widely distributed pine-associated Suillus species in warm climates. This species is native to the Northern Hemisphere, and in South Korea it associates with Japanese red pine (Pinus densiflora). It has been introduced to South Africa, Hawaii, Australia, New Zealand, Argentina, Chile, and the Falkland Islands. This fungus sometimes causes contact dermatitis in people who handle it.
