Calbovista

Calbovista is a fungal genus containing the single species Calbovista subsculpta, commonly known as the sculptured puffball, sculptured giant puffball, and warted giant puffball. Although originally described as new to science by Elizabeth Eaton Morse in 1935, the species was not published validly until 60 years later. The species is named for its resemblance to Calvatia sculpta.

Calbovista subsculpta is more or less round with a diameter of up to 15 cm (6 in), white becoming brownish in age, and covered with shallow pyramid-shaped plates or scales. As the puffball matures, its insides become dark brown and powdery from mature spores. It can be usually distinguished from Calvatia sculpta by its less prominent pyramidal warts and microscopically by the antler-like branches of its capillitium (threadlike matter among the spores).