22 Journal of Mycology [Vol. 12 



at Boulder, Colo., March 27, 1905, on weathered stems. Mr. 

 Bethel also kindly sent growing plants of the host and of Chryso- 

 thamnus nauseolus. The latter is not a recorded host for P. 

 Grindeliae, but for a similar species, P. tuber culans E. & E. A 

 sowing was made on G. Sarothrae April 12, which showed yellow 

 dots April 21, and numerous open teleutosori May 2. Another 

 sowing was made on both hosts April 26, with no infection on 

 C. nauseolus, but most abundant infection on G. Sarothrae, 

 showing yellow dots May 4, and open teleutosori May 15. The 

 yellow dots were investigated, as in the other instances, and 

 found to be the early stages of teleutosori, with no trace of 

 spermogonia. 



3. Puccinia Solidaginis Pk. Teleutosporic material 

 was sent by Mr. Garrett, collected at Salt Lake City, Utah, on 

 Solidago trinervata, April 8, 1905. It was sown on 5*. Canadensis 

 May 17, showing yellow dots June 2, and an abundance of open 

 teleutosori June 7, with considerable hypertrophy of the tissues. 

 Although the yellow dots were not specially investigated, they 

 gave the same appearance of being young sori, as in the above- 

 species of leptopucciniae. 



4. Puccinia transformans E. & E. Remarkably fine 

 teleutosporic material, forming considerable excrescences on 

 leaves and stems of Stenolobium Stans {Tecoma Stans), was 

 sent by Mr. Home, who collected it at Santiago de las Vegas, 

 Cuba, May 3, 1905. It was sown on two young plants of 6". 

 Stans May 13, and in both cases gave abundance of spermogonia 

 May 29, and of teleutospores June 5. 



Fine material gathered by Mr. J. B. Rorer on the pods of 

 S. Stans in the Bahama Ids., at Nassau, New Providence, March, 

 1904, was sent for identification. The pods contained many seeds, 

 which were planted in the greenhouse, and provided the host 

 plants for the above inoculations. The teleutospores of this col- 

 lection were in good germinating condition. As there were no 

 growing plants of S. Stans at hand, they were sown May 20 

 (1904) on vigorous young plants of Campsis radicans {Tecoma 

 radicans), but gave no infection, although the conditions seemed' 

 particularly favorable. 



Since the cultures were made a study of the characters of 

 the species has been undertaken, and the conclusion reached that 

 all North American collections, so far as known, belong to P.. 

 transformans (P. exitiosa Syd. & Holw.). An original specimen 

 of P. transformans, collected in Baja California by K. Brandegee 

 in 1893 on Tecoma Stans, has been examined, and found to agree 

 with other specimens on the same host from the West Indies, 

 and also with the type material of P. exitiosa on Tecoma mollis, 

 that is Stenolobium mollis, from Mexico. The species possesses 

 considerably smaller spores, with thinner walls and finer sculp- 



