 Within the genus Inocybe , I. praetervisa has been placed in the subgenus Inocybe . Mycologist Rolf Singer places the species in the section <unk> ; mycologist Thom <unk> considers <unk> a <unk> , and includes I. praetervisa along with I. <unk> , I. calospora and I. <unk> . <unk> has shown that , in addition to the large clade of subgenus Inocybe , I. praetervisa forms a clade with I. calospora , I. <unk> and I. leptophylla . The species are similar in that all four have <unk> with small <unk> ; it was this feature that defined the genus Astrosporina , with then A. praetervisa as its type species . However , when phylogenetic analysis later concluded that <unk> @-@ spored Inocybe species do not form a monophyletic group , the name Astrosporina was deemed inappropriate at a generic level . But it may be considered useful at a lower level to refer to the clade of the four Inocybe species . Of those four , I. praetervisa is most closely related to I. calospora , with which it forms a smaller and closer clade . A different study also found the close relationship between I. praetervisa and I. calospora ; it also named I. <unk> as a part of the clade containing I. praetervisa , I. calospora , I. <unk> and I. leptophylla . 
