ARTHUR AND JOHNSTON: UREDINALES OF CUBA 143 
was first undertaken by the junior author in March, 1916, by sowing 
them on the surface of hardened beef agar in a Petri dish. Spores 
from the small groups of aecia on the leaves germinated readily 
over night, producing long hyphal tubes, characteristic of aecio- 
spores. The spores from aecia on the greatly hypertrophied 
shoots, however, could not be made to germinate. Repeated 
attempts again in 1917 resulted in the same way. Specimens were 
sent to Lafayette, Ind., which gave no better results. A collection 
on hypertrophied shoots, made at Santiago de las Vegas on June 
14, 1917, and received in Lafayette one week later and quite dry, 
was sown on the surface of water. The next day, June 22, long 
unseptated and unbranched germ tubes appeared sparingly. 6:55 
proven, therefore, that the hypertrophied form, long known as En- 
dophyllum Rivinae, is an aecial form belonging to Puccinia Rivinae. 
75. PUCCINIA ZorNIAE (Diet.) McAlpine, Rusts of Australia 172. 
1906. 
Uredo Zorniae Diet. Hedwigia 38:257. 1899. 
ON FABACEAE: 
Zornia diphylla (L.) Pers., Herradura (Prov. Pinar del 
Rio), Sept. 30, 1904, II, III, Baker 2143. 
This imperfectly known rust, usually collected in the uredinial 
form, occurs also in Florida and Mississippi, as well as in Africa 
and Australia. This is the first record for the West Indies. 
Heretofore teliospores have been reported from Australia only, 
but both of the collections here listed show telia interspersed with 
the uredinia. The telia are small and inconspicuous, and were 
first found when sectioning to ascertain if pycnia might be present. 
Some of the sori contained only teliospores, по: urediniospores 
being intermixed. The spores are somewhat more slender than 
those described by McAlpine, and seemingly paler. They appear 
to be capable of germination upon maturity. 
The rust was detected also by Mr. Percy Wilson in the phan- 
erogamic herbarium of the N. Y. Bot. Garden, on the same host, 
collected at Pinar del Rio, April 23, 1903, J. A. Shafer 292. 
76. PucciNIA INFLATA Arth. Bull. Torrey Club 33: 516. 1906. 
ON MALPIGHIACEAE: 
Stigmaphyllon periplocifolium (Desf.) Juss., Baracoa (Prov. 
Oriente), March 13, 1903, II, III, Holway (Barth. N. Am. 
