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Stachybotrys Sansevieriicola Fungal Planet Description Sheets 175 174 Persoonia – Volume 34, 2015 Stachybotrys sansevieriicola Fungal Planet description sheets 175 Fungal Planet 320 – 10 June 2015 Stachybotrys sansevieriicola Crous & M.J. Wingf., sp. nov. Etymology. Name reflects the host genus Sansevieria, from which the Notes — Stachybotrys sansevieriicola is closely related to species was isolated. S. theobromae, a species easily differentiated by its black, Classification — Stachybotriaceae, Hypocreales, Sordario­ ovate to limoniform conidia (Hansford 1943). However, the mycetes. conidia of S. sansevieriicola are much smaller than those of S. theobromae (21–28 × 15–18 µm). Another species, S. san­ Conidiophores simple, macronematous, mononematous, single sevieriae, has been reported from decayed leaves of Sanse­ or in groups, mostly unbranched, erect, straight to slightly vieria roxburghiana in India, and is characterised by ellipsoid flexuous, 1–3-septate, smooth, hyaline, 40–70 × 3–5 µm, or boat-shaped, dark brown conidia (Ellis 1976), distinct from bearing a whorl of 3–8 phialides. Phialides terminal, clavate S. sansevieriicola. to broadly reniform or subcylindrical, hyaline, becoming pale brown, 10–15 × 4–5 µm, smooth with conspicuous collarettes. Conidia acrogenous, aggregated in slimy masses, aseptate, globose to ellipsoid with truncate hilum, 3 µm diam, smooth, 7–9 × 6–8 µm (av. 8 × 7 µm), containing one or two guttules. Culture characteristics — Colonies spreading, erumpent, with sparse aerial mycelium on OA and PDA, but with fluffy aerial mycelium on MEA, margin smooth, lobate, and surface folded. On MEA surface dirty white, reverse sienna in centre, orange in outer region. On PDA surface dirty white with luteous pigment, similar in reverse. On OA dirty white. Typus. TANZANIA, Olduvai Gorge, on leaves of Sansevieria ehrenbergii (Asparagaceae), Feb. 2014, M.J. Wingfield (holotype CBS H-22220, culture ex-type CPC 24316 = CBS 138872; ITS sequence GenBank KR476717, LSU sequence GenBank KR476752, TEF sequence GenBank KR476793, TUB sequence GenBank KR476794, MycoBank MB812416); CPC 24317. Stachybotrys albipes AF081478 98 Stachybotrys longispora AF081471 50 Stachybotrys theobromae AF081479 80 Stachybotrys sansevieriicola KR476717 Stachybotrys dichroa AF081472 99 Stachybotrys oenanthes AF081473 74 Stachybotrys longistipitata AF081471 92 Stachybotrys echinata KC305341 Stachybotrys microspora AF081475 Stachybotrys pallescens KC305345 99 Stachybotrys chartarum KC305260 63 Stachybotrys sansevieriae KC305267 100 Stachybotrys subreniformis KC305344 Single most parsimonious tree (TL = 523, CI = 0.704, RI = 0.635, Stachybotrys aloeticola KJ817888 RC = 0.447) obtained from a heuristic search with 1 000 ran- dom addition sequences of the internal transcribed spacer Stachybotrys eucylindrospora AF081474 100 and intervening 5.8S (ITS) gene regions. Scale bar shows 20 Stachybotrys oleronensis KF777192 changes and bootstrap support values (1 000 repetitions) are Fusarium sambucinum KM231813 shown at the nodes. The species described here is indicated 20.0 in bold face. The tree was rooted to Fusarium sambucinum. Colour illustrations. Olduvai Gorge in Tanzania; symptomatic leaf, colony, conidiophores and conidia. Scale bars = 10 µm. Pedro W. Crous, Johannes Z. Groenewald & Lorenzo Lombard, CBS-KNAW Fungal Biodiversity Centre, P.O. Box 85167, 3508 AD Utrecht, The Netherlands; e-mail: [email protected], [email protected] & [email protected] Michael J. Wingfield, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria 0002, South Africa; e-mail: [email protected] © 2015 Naturalis Biodiversity Center & Centraalbureau voor Schimmelcultures.
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