208 YORKSHIRE NATURALISTS' UNION. 



J ILLETIE^ Tjil. 

 TILLETIA Tul. 



1416. Tiiletia tritici Wint. [7'. curies Tul.j. 

 S.W. — Doncaster (Tr. iv.). 



]\Iii) \V. — Healaugh and Wetherby (Lees' F].). 



N.E. — Scarboro'. On cultivated wheat, 



A destructive parasite converting the infected grain into a 

 black mass, having a strong fishy odour when rubbed (Mass. 

 Text-book of Plant Diseases). Too common in wheat 

 growing districts. 



1417. Tiiletia Rauwenhofi Waldh. 



S.W. — Doncaster (F.F., '91). (Gard. Chron., 1892, p. 302). 

 N.E. — Castle Howard (F.F., '92). Terrington Carr, "92. 

 S.E. — Everingham (F.F., '93). 

 On Holciis mollis. 



1418. Tiiletia striseformis (Westd.). JJstilago salveil 

 B. & Br. I . 



S.W.- Shipley (' Nat.', Aug. '81). Bolton, near Bradford, 

 on leaves of Triticum vepens (Lees' PT). Storthes Hall, near 

 Huddersfield (F.F., '95). Elland and Hebden Bridge, on 

 Hole us I a not us (Fl. Hx.). 



UROCYSTIS Rabenh. 



1419. Urocystls occulta (Walk.). 



S.\\\ — Saltaire, on leaves of Triticuui yepens (Lees' FL). 



This smut is most abundant on rye, but also occurs less 

 fre(]uently on oats and barley, and has been met with on wheat 

 in Australia, according to Wolff (Mass. Text-book of Plant 

 Diseases). 



1420. Urocystis agropyri (Preuss.). [U . Fischeri 

 Kurn.j . 



S.W. — Eccleshill, near Bradford (Grev. xiii., p. 52). Saltaire 

 (' Nat.', Mar. '85). Hebden Bridge (Fl. Hx.). Cullingworth. 

 Mm W. — Hawksworth (Lees' Fl.). 

 On Caiex glaiica. 



Trans. Y.N.I'., iyo.j (pub. 1904). Bot. Series, Vol. 6. 



