142 SEMI-CENTENNIAL OF TORREY BOTANICAL CLUB 
ducted both in America and Europe, showing the aecia to occur on 
species of Geranium. 
73. Puccinia striolata (Speg.) comb. nov. 
Uredo striolata Speg. An. Soc. Ci. Arg. 9: 173. 1880. 
Puccinia macropoda Speg. An. Soc. Ci. Arg. 10:8. 1880. 
On AMARANTHACEAE: 
Iresine angustifolia Euphr. (I. elatior Rich.), Cacocum 
(Prov. Oriente), April 6, 1916, II, Johnston 534. 
Iresine Celosia L. (I: paniculata Kuntze), Aguacate (Prov. 
Habana), March 23, 1903, Holway. 
This rust is probably autoecious, but the life cycle is not fully 
known. No pycnia or aecia have yet been found. Only one col- 
lection made by Spegazzini in April, 1880, at Chacarita, Argentina, 
on Iresine Celosia L. (I. celosioides L.), is so far known bearing 
telia. All other collections bear only uredinia. 
The species has also been reported from the islands of St. 
Thomas and Porto Rico, and from Ecuador and Argentina. 
74. Puccinia RIVINAE (Berk. & Curt.) Speg. An. Mus. Buenos 
Aires I9: 304. 1909. 
Aecidium Rivinae Berk. & Curt. Jour. Lin. Soc. 10: 358. 1869. 
Endophyllum Rivinae Arth. N. Am. Flora 7: 126. 1907. 
Puccinia Raunkiaerii Ferd. & Winge, Bot. Tiddskr. 29:8. 1908. 
ON PETIVERIACEAE (PHYTOLACCACEAE): 
Rivina humilis L., Managua near Havana, June 11, 1906, 
Cook; Sabanilla (Prov. Oriente), April 22, 1916, Johnston 
510. 
Rivina octandra L., San Antonio de los Вайоз (Prov. Haba- 
na), April 5, 1905, Baker & Van Hermann 4775; Cacocum 
(Prov. Oriente), April 6, 1916, Johnston 515; Santiago de 
las Vegas, Feb. 27, 1916, Johnston 477, May 28, 1916, 
I, Johnston 760, June 4, 1916, II, Johnston 771; Paso 
Estancia (Prov. Oriente), May 3, 1916, I, Johnston 689, 
705; Ceballos (Prov. Camagüey), March 24, 1916, I, 
Johnston 511; Antilla (Prov. Oriente), April 8, 1916, II, 
ПІ, Johnston 512. : 
An autoecious species with all spore forms, occurring also in 
Porto Rico and St. Thomas. The rust greatly distorts the young 
shoots, as shown in the cut (p. 97). Germination of the aeciospores 
