MUSHROOMING A GUIDE for FORAGERS Alison Pouliot Tom May ‘We may read over, with the most sedulous attention, Batarra, Micheli, Gleditsch, and Haller, or turn over the multitudinous plates of Schaeffer to little purpose: to know the Fungi well we must watch them daily and yearly; in short we must live with them’. William Curtis (1777) Flora Londinensis, vol. 5. William Curtis, London. Text accompanying plate [70], Agaricus aeruginosus. Alison Pouliot MUSHROOMING A GUIDE for FORAGERS Alison Pouliot Tom May © Alison Pouliot and Tom May 2021 All rights reserved. Except under the conditions described in the Australian Copyright Act 1968 and subsequent amendments, no part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, duplicating or otherwise, without the prior permission of the copyright owner. Contact CSIRO Publishing for all permission requests. The authors assert their moral rights, including the right to be identified as an author. A catalogue record for this book is available from the National Library of Australia. ISBN: 9781486311736 (pbk) ISBN: 9781486311743 (epdf) ISBN: 9781486311750 (epub) How to cite: Pouliot A, May T (2021) Wild Mushrooming: A Guide for Foragers. CSIRO Publishing, Melbourne. Published by: CSIRO Publishing Locked Bag 10 Clayton South VIC 3169 Australia Telephone: +61 3 9545 8400 Email: [email protected] Website: www.publish.csiro.au Front cover: A selection of edible fungi (photo by Alison Pouliot). Back cover: Mixed mushrooms frying in the pan (photo by Alison Pouliot). All images © Alison Pouliot, except © Wayne Boatwright (Chlorophyllum molybdites p. 111 top middle, top right), © Fran Guard (C. molybdites p. 111 middle left, middle right), © Taylor Lockwood (Trichoderma cornu-damae p. 133), © Tom May (Amanita xanthocephala p. 132), © Ray Palmer (Leucoagaricus leucothites p. 189) and © Vanessa Ryan (C. molybdites p. 111 top left, middle middle, bottom middle, bottom right). Edited by Joy Window (Living Language) Cover design and typeset by Cath Pirret Design Printed in China by Leo Paper Products Ltd CSIRO Publishing publishes and distributes scientific, technical and health science books, magazines and journals from Australia to a worldwide audience and conducts these activities autonomously from the research activities of the Commonwealth Scientific and Industrial Research Organisation (CSIRO). 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Nov20_01 Contents Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .viii Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ix Chapter 1 The rise of wild mushrooming in Australia 1 A fungal awakening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Slow mushrooming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Fungus, sporophore, mushroom or toadstool? . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Ecological foraging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Australian knowledge of edible fungi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Humans and fungi cross continents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Chapter 2 What fungi are 9 What are fungi made of? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 How fungi feed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Mutually beneficial relationships . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Chapter 3 Fungi in Australian biodiversity conservation 13 An Australian approach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Foraging in the UK and the USA – learning from elsewhere . . . . . . . . . . . . . . 14 Potential effects of foraging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Conservation considerations for Australian foragers . . . . . . . . . . . . . . . . . . . . . 18 Chapter 4 Major groups of fungi 21 Morphogroups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Basidiomycota . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Ascomycota . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 Major morphogroups of macrofungi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 Chapter 5 Features of fungi 29 Morphological features – finding one’s way around a mushroom . . . . . . . . . . 29 Colour . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Texture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Smell and taste . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Spore prints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Chemical tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 v Wild Mushrooming Chapter 6 Names and identification 45 Naming fungi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 DNA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Citation of names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46 Field guides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Chapter 7 Finding fungi 49 The desire to forage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Managing risk and setting expectations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 How to find fungi – what to look for and what to ask. . . . . . . . . . . . . . . . . . . . 51 When to find fungi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Where to find fungi – fungus habitats and distribution . . . . . . . . . . . . . . . . . . 53 Where can you forage? The legalities of collecting fungi . . . . . . . . . . . . . . . . . 55 Collecting fungi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Chapter 8 Poisonous fungi 61 Causes of fungus poisoning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Fungus toxins, syndromes and symptoms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 Building knowledge about toxic fungi in Australia . . . . . . . . . . . . . . . . . . . . . . 72 Overview of toxic and potentially toxic mushrooms . . . . . . . . . . . . . . . . . . . . .73 Responding to suspected mushroom poisoning . . . . . . . . . . . . . . . . . . . . . . . . . 81 How to read a profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82 Amanita phalloides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 Amanita muscaria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 Agaricus xanthodermus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97 Chlorophyllum brunneum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 Chlorophyllum molybdites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 Coprinopsis atramentaria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 Omphalotus nidiformis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121 Paxillus involutus group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .127 vi Contents Chapter 9 Edible fungi and their lookalikes 135 Profile selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135 Lookalikes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .136 Typical environments where profiled fungi are found . . . . . . . . . . . . . . . . . . . 136 Lactarius deliciosus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139 Coprinus comatus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147 Lepista nuda . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155 Macrolepiota clelandii . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .163 Marasmius oreades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171 Agaricus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179 Suillus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193 Hydnum crocidens group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201 Tremella fuciformis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207 Lycoperdon pratense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215 Emerging knowledge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .222 Cultivated fungi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .225 Chapter 10 Fungi in the kitchen and on the table 229 Storage and preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230 Preserving mushrooms – drying, freezing and pickling . . . . . . . . . . . . . . . . .233 Cooking mushrooms – frying, roasting and grilling . . . . . . . . . . . . . . . . . . . . 235 Nutritional value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237 Recipe selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238 Recipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .241 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300 Further reading and resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306 vii Acknowledgements This book was 5 years in the making and many people have helped inform and shape it along the way. It represents a new concept for a field guide and we are grateful for the flexibility and commitment of CSIRO Publishing in taking on the project. We thank the publishing team, especially Briana Melideo, Melinda Chandler, Lauren Webb and editor Joy Window. We have benefitted from the expert knowledge of mycologists Grace Boxshall, Pam Catcheside, Nigel Fechner, Teresa Lebel, Heino Lepp, Steve Trudell, Sallie Tucker Jones and Rytas Vilgalys. Chapter 8 draws on the novel classification of mushroom poisoning published by Julian White (Women’s & Children’s Hospital, North Adelaide, South Australia) and colleagues, and we thank Julian, Christine McKenzie and Dawson MacLeod for reviewing this chapter. Several people helped us improve the readability of the book by reviewing chapters, testing recipes and proofing drafts. We thank Pat Connor, Alison Cowan, Jill de Vos, Lesley and Terry Evans, Meredith Jelbart, Anna King, Iona Maroske, Sara Maroske, Michael Pouliot, Michael Prideaux, Kay Rae, Rachel Tham and Jan Waddington. The final chapter brings together the foraging finds and pops them on the plate. We are grateful to Fofi Christou, Sasha Gora and Trish Veitch for advice and editing. From curious cooks to accomplished chefs, many people generously contributed their favourite mushroom recipes and also allowed us to sample the fungal fare. You can discover who they are through their delightful stories and delectable recipes in Chapter 10. The field component of the book took us to numerous locations. We thank those who provided local knowledge and hospitality and shared their anecdotes and experiences of the fungal realm. Valérie Chételat lent her astute and aesthetic photographic eye in assisting with image preparation. We also thank Katie Syme for her illustrations on pp. 30 and 33 and Wayne Boatwright, Fran Guard, Taylor Lockwood, Ray Palmer and Vanessa Ryan for helping us out with additional images. viii Disclaimer Information in this book regarding the edibility and toxicity of fungi is believed by the authors to be true and accurate at the time of writing. Readers are advised that taxonomy, nomenclature and toxicology are constantly developing and species names and knowledge about edibility and toxicity change accordingly. Although the book includes known common toxic lookalike species, further toxic species are likely to exist. Consuming wild fungi carries risk and readers are advised to read the section on pp. 49–51. In particular, readers’ attention is drawn to the warning that the consumption of even a small portion of some toxic fungi can cause organ damage or death. Hence, every forager should first learn the toxic species, especially those that are potentially fatal, before foraging for fungi. No simple rules exist for distinguishing edible mushrooms from poisonous mushrooms. To minimise poisoning risk, always assume a mushroom is toxic, unless an authoritative source definitively states it is edible. While the edibility/toxicity of many Northern Hemisphere species is reasonably well established, less is known about Australian fungi, and it is not possible to directly extrapolate this knowledge to Australian fungi. Accordingly, neither the authors nor the publisher accepts any legal responsibility or liability for any loss, damage or injury arising from any error in or omission from the information contained in this book or from the failure of the reader to understand or accurately interpret information. Wild mushrooms are the focus of this book but information is also presented on some cultivated mushrooms. Cultivated species provide the benefit of availability and certainty about identity. The recipes included in Chapter 10 utilise a variety of wild and cultivated species. Where recipes include wild foraged species, they can often be replaced by cultivated species. Note: Tom May is a Principal Research Scientist at Royal Botanic Gardens Victoria and an Honorary Associate of the Victorian Poisons Information Centre, but his contributions to Wild Mushrooming have been made in his own time, and the views expressed in this work do not necessarily represent the views of these organisations. ix