Fungous Flora of the Soil 437 



J. May 15, 191 1. Botrytis terrestns n. sp., Fusarium, Hormodendrum 

 Hordei Bmhne, Mycogone nigra (Morgan), Penicillium expansum (Link) 

 Thorn. 



K. June 15, 191 1. Fusariiim, Penicillium expansum (Link) Thorn, 

 Penicillium terrestre n. sp. 



L. July 13, 191 1. Hormodendrum cladosporioides (Fres.) Sacc, Peni- 

 cillium expansum (Link) Thorn, Trichoderma Koningi Qud., Zygorrhynchus 

 Vuilleminii Namy. 



I M. August 15, 191 1. Aspergillus fumigatus Fres., Botrytis terrestris n. 

 sp., Hormodendrum cladosporioides (Fres.) Sacc, Penicillium expansum 

 (Link) Thorn, Zygorrhynchus Vuilleminii Namy. 



N. September 8, 191 1. Chaetomium olivaceum Cooke & Ellis, Fusa- 

 rium, Hormodendrum cladosporioides (Fres.) Sacc., Hormodendrum Hordei 

 Bruhne. 



O. Chaetomium olivaceum Cooke & Ellis, Monilia not determined, Peni- 

 cillium expansmn (Link) Thom, Stachybotrys cylindrospora n. sp., Stachy- 

 botrys aira Cda. 



Summary of species isolated from all samples. — Acrostalagmus albus 

 Preuss. var varius n. var., Alternaria fasciculata Cooke & Ellis, Asper- 

 gillus fumigatus Fres., Aspergillus globosus n. sp., Aspergillus Koningi 

 Oud., Botrytis terrestris n. sp., Chaetomium olivaceum Cooke & Ellis, 

 Hormodendrum cladosporioides (Fres.) Sacc, Hormodendrum Hordei 

 Bruhne, Mucor botryoides Lendner var. minor n. var., Mucor circinelloides 

 van Tiegh., Mucor hiemalis Wehm., Mucor mucedo (Linne) Bref., Mucor 

 plumbeus Bonord., Mucor racemosus Fres., Mycogone nigra (Morgan), 

 Penicillium chrysogenum Thom, Penicillium desciscens Oud., Penicillium 

 expansum (Link) Thom, Penicillium humicola Oud., Penicillium terrestre 

 n. sp., Pleurage verruculosis n. sp., Rhizopus nigricans Ehren., Rhizopus 

 nigricans Ehren. var. minor n. var., Sachsia albicans C. Bay, Spicaria 

 simplicissima Oud., Sporormia fascicidata n. sp., Stachybotrys atra Cda., 

 Stachybotrys cylindrospora n. sp., Thamnidiuin elegans Link, Trichoderma 

 Koningi Oud., Trichoderma lignorum (Tode) Harz, Trichothecium roseum 

 Link, Zygorrhynchus Moelleri Vuill., Zygorrhynchus Vuilleminii Namy. 



TAXONOMIC CONSIDERATION OF ALL FORMS RECORDED FROM SOIL 



In a consideration of the species of soil fungi, it has seemed advisable 

 to classify them under two heads : the facultative parasites and the obhgate 

 saprophytes. 



While facultative parasites are generally accepted as living in the soil, 

 much of the evidence to support this view is circumstantial. The specific 

 descriptions of the members of this group of organisms have not been 

 given. This has not seemed desirable because of the great amount of valu- 



