Take-all and White-heads in Wheat. 425 



11. Portion of Fig. 1) more highly magnified ... ... x 15 



12, lo. Ferithecia taken from the sheath of take-all plants^ 



and showing the hairy mycelium attached ... x 30 



14. Four spore-sacs or asci containing spores, with filiform 



paraphyses between some (stained with carbol-fuchsin) x400 



15. Several spores not yet separated from each other (stained 



with carbol-fuchsin) .. ... ... ... x 400 



16. Several spores of varying sizes (stained with carbol-fuchsin) x 400 



17. Spore germinating after 48 hours in boiled tap water 



(stained with carbol-fuchsin) ... ... . . . x 400 



18. Bunch of spores germinating as before. 



Hender.sonia graniinis n.sp. 



19. Perithecium of the Hendersouia ... ... ... x 30 



20. „ ,. ... ... ... X 100 



21. Spores of the Hendersonia ... ... ... ... x400 



Note. — All figures, except the last, original photographs and photo-micrographs 

 by G. H. Robinson. 



Literature. 



1. Report of Commission on Diseases in Cereals ; Government 



Printer, Adelaide, 1868. 



2. The Take-all (Xenodochus cerealium) ; Prize Essay^ published 



under the authority of the ' Board of Agriculture of Victoria, 

 1870, (Mason, Firth and Co., Melbourne). 



3. Fungi Veneti novi vel critici; Saccardo, Nnov. Giorn. Bot., Ital. 



VII, No. 4 (1875). 



4. Bulletin des seances de la Societe centrale d'agriculture de 



France, XXXVIII, 368 (1878). 



5. Straw Blight; W. G. Smith, Diseases of Field and Garden 



Crops, 69 (1884), (Macmillan and Co., London.). 



6. Blight in AVheat ; A. N. Pearson, Bull. No. 1, Department of 



Agriculture, Victoria, 38 (1888). 



7. La Maladie du pied du Ble, causee par Ophioholus graminis, 



Sacc. ; Prillieux and Delacroix, Bull. Soc. Mvc. France, VII, 

 Fasc. 2, p. 110, (1890). 



8. Le pietin ou maladie du pied des cereals ; E. Schribaux, Joiir. 



d'Agric. pratique, II, 317. (1892). 



9. Take-all and its Remedies; J. G. 0. Tepper, Ag. Gaz., N.S.W., 



III, 69, (1892). 



10. Take-all and Dry Blight ; N. A. Cobb, Ag. Gaz., N.S.W., III, 



991, (1892). 



11. Take-all and Dry Blight in Oats ; N. A. Cobb, Ag. Gaz., N.S.W.; 



III, p. 1000, (1892). 



