140 26^ Mycologia 



lister and Mr. Tharp, of the University of Texas, made in No- 

 vember, 1914, soon placed in my possession resting telia on Hor- 

 deum pusillum and dormant bulbs of the Nothoscordium, which 

 were made to yield the above results. 



In the meantime it was remembered that Mr. W. H. Long had 

 reported this connection several years before. In a letter dated 

 Feb. 28, 1904, he says : " I have successfully grown Uromyces 

 Hordei urediniospores from sowings of aeciospores that I find on 

 Nothoscordium striatum [N. bivalve]." Again on March 24, 

 1910, Mr. Long wrote: "Since writing you last I have cross-in- 

 oculated teliospores on Nothoscordium striatum, and aeciospores 

 from it upon Hordeum nodosum [error for H. pusillum], and 

 got successful cultures in both instances." Mr. Long kindly sent 

 material to illustrate his work and also material with which to 

 verify his conclusions. Unfortunately it was not possible to 

 bring about conditions for the cultures, and as Mr. Long's work 

 was done in the open, and not verified by others, the results were 

 omitted from the North American Flora when this species was 

 reached. 25 



In this connection it may be well to say that the statement in 

 the North American Flora that the species occurs in California 

 on Hordeum nodosum is erroneous. The species ranges from 

 Nebraska to Mississippi and Texas, which also includes the range 

 of the aecial host, although the aecia have only been taken in 

 Texas. 



Summary 



The following is a complete list of the successful cultures made 

 during the year 191 5. It is divided into two series, species that 

 have previously been grown in cultures and reported by the writer 

 or other investigators, and species whose culture is now reported 

 for the first time. 



A. Species Previously Reported 



1. Puccinia extensicola Plowr. (P. DulichU Syd.). Telio- 

 spores from Dulichium arundinaceum (L.) Britt., sown on Soli- 

 dago canadensis L. 



25 N. Amer. Flora 7: 228. 1912. 



