CONTENTS. 
CHAPTER 
I 
II. 
III. 
IV. 
Vv. 
VI. 
VII. 
VIII. 
IX, 
Xx. 
XI. 
XII. 
XIII. 
BIOLOGY OF THE UREDINE#-—INTRODUCTORY REMARKS 
MYCELIUM OF THE UREDINEE or as 
SPERMOGONIA AND THE SO-CALLED SPERMATIA 
ALCIDIOSPORES Kets vad ssi 
UREDOSPORES .., oe Aon 
TELEUTOSPORES iat er als oe 
HETERGCISM 
MYCELIUM OF THE USTILAGINEA ... 
FORMATION OF THE TELEUTOSPORES OF THE USTILAGINES 
GERMINATION OF THE TELEUTOSPORES OF THE USTILAGINEZ 
INFECTION OF THE HosT-PLANTS BY THE USTILAGINEE 
SPORE CULTURE es fae sis ass 
THE ARTIFICIAL INFECTION OF PLANTS ee 
DESCRIPTIONS OF THE BRITISH UREDINEE 
APPENDIX—IMPERFECT FORMS, OF WHICH THE FULL Lirr-History 
Is UNKNOWN ane aoe vee ane ave 
DESCRIPTIONS OF THE BRITISH USTILAGINEE wee oats 
SUPPLEMENT—ALLIED AND ASSOCIATED SPECIES 
THE BARBERRY LAW OF MASSACHUSETTS 
GLOSSARY site 6 ae a wat 
AUTHORS QUOTED zi i 
DESCRIPTION OF PLATES 
InpEXx OF HosT-PLANTS ... was ote oe sit 
BIOLOGICAL INDEX sles ae vie ss an 
INDEX OF SPECIES oan ba sit sit wig 
PAGE 
105 
114 
254 
272 
297 
302 
305 
309 
317 
325 
331 
339 
