28 



"chief diagnostic signs will be found to be, that the spo- 

 "ridia are either wholly uncovered and seated on the surface 

 "of the leaves of the plants on which they grow, or that 

 "they quickly become so, by bursting through the cu- 

 bicle, by which at first they were concealed, Hence from 

 "this one portion of the group the common name "Ento- 

 "phytes" was derived which however, although, rightly 

 f 'descriptive of a part is not truly applicable to the whole/ 

 In fact when we come to deal with a type of a Section of an 

 order, classed as a group it must be allowed that a mycolo- 

 gist has no easy matter before him first to endeavour to de- 

 termine accurately a proper and s ystematic location of the 

 genera, and then to assign to each individual specimen be- 

 longing to such a complicated order, a sufficiently exact 

 appellation or cognomen to satisfy all critics. In fact in 

 Botany one of the fundamental principles in the name-giving 

 department is to endeavour to fix, upon a compound term 

 derived from the Greek, Latin or Sanscrit languages as will 

 in the smallest possible space give expression to the princi- 

 pal distinguishing characteristics of the in dividual plant and 

 its genus, or family. I maintain that Mr. Cooke has con- 

 ducted his investigation under peculiarly favourable cir- 

 cumstances, in having been supplied with abnormally fully 

 developed specimens from Mysore, where coffee is cultivated 

 under shade, and deserves the greatest credit for his matur- 

 ed opinion thereon. 



His observations as to sporidia of the Hemileia in my 

 humble opinion, leave not the ghost of a doubt as to the 

 class to which the fungus belongs. 



To the uninitiated like myself, section 511 of my old- 

 Botanical Book is at least somewhat startling to the nerves 

 of one, anxious for practical information, but it affects the 

 case, so fearing to trust myself single handed among so 

 many confusing technicalities, I again make another quo- 



