246 
]\Iycologia 
characteristic urediniospores. A portion of the type material of 
Urcdo cancerina and U. leonoticola has been examined. The 
species as here indicated seems consistent with other species on 
related hosts in its morphology, and with tropical forms gen- 
erally in rarely producing other than repeating spores. 
62. PucciNiA MEDELLINENSIS Mayor, Mem. Soc. Neuch. Sci. 
5:497- 1913- 
Aecidiurn Hyptidis P. Henn. Hedwigia 34:337. 1895. 
Eriosporangium tucumanense Arth. (in part) N. Am. Flora 
7:212. 1912. 
On Lamiaceae (Labiatae) : 
Mesosphaerum atrorubcns (Poir.) Kuntze (Hyptis atro- 
rubens Poir.), Santurce, Jan. 22, 255. 
Mesosphaerum pectinatum (Poir.) Kuntze (Hyptis pec- 
tinata Poir.) Villa Alba, Jan. 3, III, 49; Coamo Springs, 
Jan. I, I, J52; Corozal, Feb. 21, II, 4/3; Mayagiiez, 
April 30, II, p^8, May i, II, 1063; Rosario, Oct. 27, II, 
38^4; Lares, Nov. 22, I, II, II, 4921 ; Cabo Rojo, Dec. 
27, II, 6486. 
Mesosphaerum suaveolens (L.) Kuntze (Hyptis suave- 
olens Poir.), Mayagiiez, April 15, 882, Oct. 31, 3892; 
Ponce, Nov. ii, 4275; Aguada, Nov. 22, 4913; Guay- 
ama, Dec. 4, 5397 ; Guayanilla, Nov. 13, 5867. 
Other West Indian collections of this species on M. pectinatum 
are from La Carmelita, P. R., April, 1904, O, I, II, III, G. P. 
Clinton, 128, Aibonito, P. R., Feb. 1911, II, III, E. W. D. Hol- 
way, Mandeville and Kingston, Jamaica, Feb., 1915, E. W. D. 
Holway, 224, 232. 
Collections of urediniospores on M. suaveolens have also been 
made at Constance Springs, Jamaica, Dec., 1910, by A. S. Hitch- 
cock, and at Santiago, Cuba, March, 1903, by E. W. D. Holway. 
The form on M. pectinatum reported in the North American 
Flora was confused with the South American form on M. spica- 
tum, which until the present time has only been described under 
the name of Aecidiurn tucumanense Speg. Type material of the 
latter, however, shows uredinia and telia sparingly among the 
aecia. The spore-forms are all somewhat larger than those of 
