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A. Barclay — List of the Uredinese occurring [N*o. 



XXI.— J Descriptive List of the Uredineae occurring in the Neighbourhood 

 of 8imla (Western Himalayas) .-^By A. Barclay, M. B., Bengal 

 Medical Service. 



[Received 7tli October ;— Read November 2nd, 1887.] 



(With Plates XII.— XV.). 



The neighbourhood of Simla is particularly rich in species of 

 Uredines; and, as I have paid much attention to them during the last 

 four years, it has been suggested to me that a descriptive list of them 

 might usefully be recorded for the use of future workers in this very 

 interesting field of cryptogamic botany. I have acted on the sugges- 

 tion after much hesitation, for, with the very limited leisure at my dis- 

 posal m the course of an active official life, I cannot hope to make the 

 list a complete one, nor, indeed, can the descriptions of many of those I 

 notice be as complete as might be desired. Nevertheless, so far as they 

 go, my statements may, I hope, be accepted as correct in every respect, 

 for every one of them has been made after careful and repeated observa- 

 tion. I may, therefore, be permitted to hope that the list may serve 

 some useful purpose, more especially as no such attempt has ever before 

 been made in India, so far as I am aware. 



With regard to the order in which such a list should be given, I 

 have determined, after some hesitation, to bind myself by no very strict 

 rule, but, in general, to enumerate, first, all those species which bear 

 aecidial fructification and, then, to go on to those which are at present 

 known to me only in the teleutosporic stages. With reference to the 

 aecidium-bearing species, I may note that I have described them ge- 

 nerally as they occur in seasonal sequence, beginning with those which 

 appear earliest in spring, and ending with those which disappear last 

 towards autumn. The only exception I have made in following out this 

 plan is to withdraw from the general list all those forms which occur 

 on the ConiferaB, as I thought it better to enumerate the characters of 

 these few well defined species together, rather than to disperse them 

 among the others, which occur on hosts having no special relationship 

 with one another. 



In the present contribution, I will confine myself to the gecidial 

 forms with which I am acquainted on hosts other than the Coniferge ; 

 but, before proceeding to a description of them, I may draw the atten- 

 tion of the reader to one or two points of special interest concerning 

 them. 



