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B. M. Spooner:

Helotiales of Australasia

Geoglossaceae, orbiliaceae, sclerontinaceae, hyaloscyphaceae

1987. 711 pages, 144 figures, 3 tables, 14x22cm, 1300 g
Language: English

(Bibliotheca Mycologica, Band 116)

ISBN 978-3-443-59017-8, paperback, price: 128.00 €

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Contents

Synopsis top ↑

A comprehensive taxonomic study of four families of Australasian Helotiales has been conducted. Details of the taxonomy of constituent species of Geoglossaceae, Orbiliaceae, Sclerotiniaceae and Hyaloscyphaceae from this region are presented, and a description of the type genus of the type family, Leotiaceae, is given for comparative purposes. In addition, an historical survey of the collection of Australasian discomycetes is included and notes on the principal collectors given in an appendix.
The presentation of the taxonomic account takes the form of a key to the families of Helotiales occurring in Australasia, keys to the accepted genera in each included family and to the species in each genus. A full description and discussion of the nomenclatural and taxonomic status of each genus is provided and all species are fully described and illustrated. The complete synonymy of each species is given, together with a detailed discussion and comparison of related taxa.
All material relevant to the Australasian region has been examined and a total of 38 genera, 124 species and 5 infra-specific taxa are recognized. Six extra-limital species, directly relevant to the investigation of these taxa, are described and illustrated. The main taxonomic conclusions are as follows: 8 new genera (+ 1 new name), 1 new sub-generic section, 22 new species (+ 2 new names), 1 new variety, 1 new form and 45 new combinations are proposed. Within the Geoglossaceae, the conservation of Geoglossum Pets. (1796) against Geoglossum Pers. (1794) is proposed. Geoglossum Zignicolum is placed as a synonym of G. australe, G. noumeanum as a synonym of G. pumilum and G. barlae tentatively as a synonym of G. umbratile. The genus Habrostictis is referred for the first time to Orbiliaceae and Patinella is shown to be better removed from this family and placed in Dermateaceae. Orbilia auricolor is shown to be the correct name for the species long known as O. curvatispora and O. delicatula to be the earliest name for the species long known to British authors as O. xanthostigma. Torrendiella is referred for the first time to Sclerotiniaceae and shown to be the correct genus for Australasian species previously placed in Zoellneria. Lanzia rufocornea is referred to a new genus, Dicephalospora. Mollisia nothofagi is placed as a synonym of Helotium berggrenii, and this species is transferred to the genus Lanzia in Sclerotiniaceae; Helotium metrosideri is reduced to a variety of it. A new section is proposed within the genus Ciboria to accommodate lignicolous species.
The family Hyaloscyphaceae is considered to include an heterogeneous assemblage of genera and, as currently circumscribed, to be an artificial taxon. The circumscription of the subfamily units commonly employed, based on hair and subiculum characters, also suggests these to be artificial, obscuring relationships between genera. Thus, they have not been employed here. Within the Hyaloscyphaceae, Belonidium is confirmed as a synonym of Lachnum, Peziza melanopus is placed as a synonym of Lachnum brasiliense and Trichopezizella as a synonym of Lasiobelonium. Erinella novae-zealandiae is placed as a synonym of Perrotia lutea and Trichopeziza sphaerula is shown to be an earlier name for Perrotia aurea.
The Australasian Helotiales exhibit a diversity of characters not previously represented in the order. Whilst many species can be referred to long-established genera known from the northern hemisphere and now shown to have a wider distribution, it has been necessary to recognize a considerable number of new genera. These amount to c. 20% of those studied. A similar Dronortion of the recognized species were previously undescribed. Some of these species are sufficiently distinctive to serve as the types of new genera, but in no case has there been difficulty in assigning a genus to its appropriate family. It has therefore not been necessary to redefine the families in question in order to accommodate the Australasian members of the order.

Contents top ↑

ABSTRACT 9
ACKNOWLEDGEMENTS 13
CHAPTER 1 GENERAL CONSIDERATIONS 15
1.1 Choice of Area and Subject of Study 15
1.2 Definition of Area 15
1.3 Historical Introduction 16
1.4 Historical Survey of the Collection of Australasian Helotiales to 1961 16
1.5 Recent Work and Present State of Knowledge 23
1.6 Scope and Value of Present Study 24
CHAPTER 2 MATERIAL AND METHODS 29
2.1 Preparation and Examination of Dried Herbarium Material 29
2.2 Reagents 30
2.2.1 10% aqueous NH3OH 30
2.2.2 5% aqueous KOR 30
2.2.3 Melzer's Reagent 30
2.2.4 Cotton Blue in Lactophenol 31
2.3 Drawings 31
2.4 Measurements 32
2.5 Abbreviations and Herbarium Citations 32
2.6 Taxonomic Analysis 32
CHAPTER 3 GENERAL ACCOUNT OF THE HELOTIALES 35
3.1 Taxonomy 35
3.2 Economic Importance 40
3.3 Morphology 40
3.3.1 External Morphology 40
3.3.2 Microanatomy 41
3.4 Taxonomic Criteria and their Application 44
3.5 Taxonomic Conclusions 71
3.6 Practical Difficulties with Helotiales 75
CHAPTER 4 FORMAL TAXONOMY 77
4.1 Key to Families of Helotiales Represented in Australasia 77
4.2 Leotiaceae Corda 78
4.3 Geoglossaceae Corda 80
4.3.1 Key to Australasian Genera of Geoglossaceae 81
4.3.2 Geoglossum Pers. 82
4.3.3 Trichoglossum Boud. 118
4.3.4 Microglossum Gillet 138
4.3.5 Thuemenidium O. Kuntze 150
4.4 Orbiliaceae Nannf. 157
4.4.1 Key to Genera of Orbiliaceae 159
4.4.2 Orbilia Fries 160
4.4.3 Hyatinia Boud. 186
4.4.4 Habrostictis Fuckel 192
4.5 Sclerotiniaceae Whetzel ex Whetzel 197
4.5.1 Key to Genera of Sclerotiniaceae known from Australasia 200
4.5.2 Sclerotinia Fuckel 202
4.5.3 Glocotinia Wilson, Noble & Gray 240
4.5.4 Mitrulinia Spooner, gen. novum 244
4.5.5 Monitinia Honey 256
4.5.6 Stromatinia (Boud.) Boud. 265
4.5.7 Dicephatospora Spooner, gen. novum 267
4.5.8 Poculinia Spooner, gen. novum 277
4.5.9 Asterocalyx Höhnel 280
4.5.10 Poculum Velen. 287
4.5.11 Ciboria Fuckel 296
4.5.12 Torrendiella Boud. 316
4.5.13 Lambertella Höhnel 334
4.5.14 Lanzia Sacc. 338
4.6 Hyaloscyphaceae Nannf. 379
4.6.1 Key to Genera of Hyaloscyphaceae known from Australasia 384
4.6.2 Arachnopeziza Fuckel emend Korf 387
4.6.3 Asperopilum Spooner, gen. novum 391
4.6.4 Austropezia Spooner, gen. novum 397
4.6.5 Cistella Quélet 402
4.6.6 Dasyseyphella Tranzschel 408
4.6.7 Dematioseypha Svrcek 412
4.6.8 Dimorphotricha Spooner, gen. novom 416
4.6.9 Hyaloseypha Boud. 420
4.6.10 Lachnellula P. Karsten 426
4.6.11 Lachnum Retz. 440
4.6.12 Lasiobelonium Ellis & Everhardt 570
4.6.13 Neodasyscypha Spooner, nom. novum 589
4.6.14 Proprioscypha Spooner, gen. novum 600
4.6.15 Perrotia Boud. 604
4.6.16 Polydesmia Boud. 626
4.6.17 Proliferodiscus Haines & Dumont 632
4.6.18 Rodwayella Spooner, gen. novum 651
4.6.19 Unguiculariopsis Rehm 654
REFERENCES 663
APPENDIX Alphabetical List of Principal Collectors of
Australasian Fungi to 1950 693