Mycosystema 2: 111-133, 1989


A REDELIMITATION OF THE SPECIES OF PILOBOLUS

HU FU-MEI, ZHENG RU-YONG and CHEN GUI-QING
Systematic Mycologh & Lichenology Laboratory, Institute of Microbiology, Academia Sinica, Beijing


ABSTRACT: Nine species of Pilobolus were accepted by Zheng & Hu (in Tai, 1979). All of these were collected and studied recently. Though they are distinguishable from each other, in this paper they are redelimitated as five species comprising nine varieties in order to achieve concordance with the other genera of the Mucorales where the existing species concept for classifying Pilobolus, including ours in the past, is too small and needs revising. The taxa new accepted are: Pilobolus crystallinus (Wigg.) Tode var. crystallinus; P. crystallinus var. hyalosporus (Boedijn) Hu & Zheng, comb. nov. ; P. crystallinus var. kleinii (van Tieghem) Zheng & G.-q. Chen, comb. nov.; P. lentiger Corda var. lentiger; P lentiger var. minutus (Speg.) Zheng & G.-q. Chen, comb. nov.; P. longipes van Tieghem; P. oedipus Mont.; P. roridus (Bolt.) Pers. Var. roridus; P. roridus var. umbonatus (Buller) Hu & Zheng, comb. nov. A study of the diagnoses given in the literature of some synonyms, which were referred to different taxa by different authors, was made to determine their correct placement. Twelve names are listed here as doubtful since no diagnoses could be found or no conclusion could be drawn from the diagnoses. These include: Mucor obliquus Scop., M. urceolatus Dicks., Pilobolus urceolatus Purt., P. pestis-bovinae Hallier (= P. hallierii Rivolta), P. nanus van Tieghem, P. intermedius (coem.) P. A. Karsten (= P. oedipus var. intermedius Coem.), P. pullus Massee, P. proliferens McVickar, P. lentiger forma minutus Reyn. & Laysa.