1918] ARTHUR—UREDINALES 467 
and give only a powdery appearance to the surface, the teliospores 
being small, thin-walled, very pale, and germinating freely upon 
maturity. 
9. Uromyces Hower Peck (on Asclepiadaceae).—Asclepias 
curassavica L., vicinity of Lima, Peru, July 24, II, no. 18770. 
A very common species of rust throughout North and South 
America. Only uredinia are collected, except in the north tem- 
perate part of the range. 
10. URomyces Crestrt Mont. (on Solanaceae).—Cestrum sp., 
Illapel, Chile, October 7, I, no. 19275. 
The species was first described from the island of Juan 
Fernandez, Chile, in 1835, and is now known as a common tropical 
rust of both North and South America. 
11, Puccinia Bambusarum (P. Henn.), comb. nov. (on 
Poaceae).—Arundinaria sp. 
An ample portion of the type collection of Uredo Olyrae P. Henn. 
(Hedwigia 43: 164. 1904) recently became available for study. On 
this material there were found not only uredinia, but also telia. 
The latter are so small and inconspicuous as to easily escape notice. 
The collection, only one having been recorded so far under this 
name, was made in the northeastern part of Peru and in the plain 
region some distance from the high mountains, but for convenience 
the discovery of the teliospores may be recorded here. 
Uredo Olyrae was reported to be on Olyra sp., a genus belonging 
to the tribe Paniceae, but upon examining the material now in the 
Arthur herbarium, Mrs. AGNES CHASE, agrostologist of the Depart- 
ment of Agriculture, Washington, says “‘there is no known species 
of Olyra with bristles at the summit of the sheath as in this speci- 
men. These bristles are found in several genera of bamboos. I 
think this specimen is a species of Arundinaria.”’ The specimen 
examined was distributed as “‘E. Ule, Appendix Mycothecae 
Brasiliensis, no. 5, Peru, Iquitos, 1902.’ A part of the same type 
collection, kindly sent to me in 1913 from the Berlin Museum, gives 
the collector’s no. 3161 and the date July 1902. 
In a similar way examination of type material of Uredo Bam- 
busarum P. Henn. (Hedwigia 35:255- 1896) discloses both uredinia 
