124 SEMI-CENTENNIAL OF TORREY BOTANICAL CLUB 
Puccinia exitiosa Syd. & Holw.; Sydow, Monog. Ured. 1: 245. 
1902. 
ON BIGNONIACEAE: . 
Stenolobium stans (L. D. Don (Tecoma stans Juss.), 
Havana, March 24, 1903, Holway; Santiago de las Vegas, 
May 3, 1905, Horne, Feb. 28, 1916, II, ІП, Johnston 
460; Cojimar (Prov. Habana), Мау, 1905, Baker 2605; 
Villa Real near Guanabacoa (Prov. Habana), May 20, 
1912, Bro. León 2943; Cienfuegos (Prov. Santa Clara), 
Nov. 3, 1915, П, Johnston 219; San Antonio de los Вайоз 
(Prov. Habana), June 11, 1916, Johnston 781. 
The species is a short-cycle rust possessing pycnia and telia, as 
proven by cultures (Arthur, Jour. Myc. 12: 22. 1906; 13: 198. 
1907), made in 1905 and 1906. The teliospores for the cultures 
came from the material sent by Mr. Horne, as listed above. The 
plants were from seed received from the Bahama islands and sown . 
in the greenhouse the year previous. The greenhouse plants thus 
infected continued to produce the rust from the same galls for a 
number of years, under greenhouse conditions. Material fixed 
from the cultures was utilized by Dr. E. W. Olive in his cytological 
studies (Sexual cell fusions and vegetative nuclear divisions in the 
rusts. Ann. Bot. 22: 331-360. pl. 22. 1908). The same author 
has further studied this material and reported it under the title 
“Тһе nuclear conditions in certain short-cycled rusts," but only 
an abstract of the paper (Science 11. 33: 194. 1911) has yet been 
printed. 
The species is known from various parts of Mexico, from New 
Providence in the Bahama Islands, and from Cuba.  Puccinia 
elegans Schrót. of Argentina is a similar short-cycle rust, but with 
larger and more coarsely sculptured spores, and has not yet been 
found in North America. Type material for all the names cited 
has been examined by the senior author. 'The names and de- 
scriptions of the two species involved are unfortunately confused 
in Sydow's Monographia Uredinearum 1: 244-245. 
33. SPHAEROPHRAGMIUM DALBERGIAE Diet. Hedwigia 32: 30. 
1893. | i 
Uredo Sissoo Syd, & Butl. Ann. Myc. 4:442. 1906. 
