Original Herbarium Label: Mucronella calva var. aggregata (Fr.) Pilát Sporocarps only about 0.5 mm long Typical variety, Mucronella calva (Alb. & Schwein.) Fr. var. calva has sporocarps up to 3 mm long Lit.: Corner, E. H. 1970. Supplement to "A Monograph of Clavaria and Allied Genera". Nova Hedwigia Beihefte 33: 1-299. On very rotten, damp coniferous wood, growing with Orbilia delicatula (P. Karst.) P. Karst.