168 JOURNAL OF THE WASHINGTON ACADEMY OF SCIENCES VOL. 13, No. 9 
A set of Raddi’s Brazilian grasses appears to have been given to 
the Museum at Florence but his own set is preserved in the University 
in Pisa. 
In May, 1922, I visited the Museo e Laboratorio di .Botanica, 
Florence, and the Instituto ed Orto Botanico della R. Universita in 
Pisa, for the purpose of studying these grasses. I took photographs 
of all Raddi’s own species which I found in Pisa. Six I was not able 
to find. In the Pisa herbarium (and in Florence also) the visitor does 
not search the herbarium himself, he asks for the genera wanted and 
the packages are brought by an attendant. The Raddi grasses are 
distributed in the herbarium and it is possible that the missing speci- 
mens were distributed in genera I failed to guess. 
The Raddi grasses in Pisa are unusually ample and well-prepared. 
They are mounted on the third page of a folder of rather heavy paper. 
The name is written on the outside of the folder (which could not be 
made to show in the photograph), and in most of the specimens there 
is a ticket bearing the name, usually in Raddi’s hand, on the page 
with the specimen. There are no data on the tickets or on the folder, 
except that on the tickets that are not in Raddi’s hand is written 
“Brasile.”’ 
In the Florence Herbarium I found several specimens of Paspalum 
with data on the labels. Among some undetermined grasses that 
Dr. Pampanini asked me to name were sixteen specimens without 
names or data other than “In Brasilia legit Cl. Raddi.’’ Later I 
found a few Raddi specimens in the Delessert Herbarium and in the 
herbarium of the British Museum. 
The following list is based on the Pisa specimens, those in the other 
herbaria are referred to only when they add some information, or 
when they differ from the Pisa specimens. 
The species (beginning with the sedges) are numbered consecutively 
throughout the book. These numbers are used in the following list. 
Except in a few cases, only Raddi’s own species are given. 
ANNOTATED LIST OF RADDI’S SPECIES 
RETTBERGIA, a new genus including one species 
27. RETTBERGIA BAMBUSIOIDES. pl. 1.f.1. ‘Circa verticem Mon- 
tis Corcovado.”’ The specimen is a single leafy branch with a small 
rather dense panicle. This is Chusquea bambustoides (Raddi) Hack. 
Hackel? refers C. gaudichaudii Kunth to this species. Kunth’s plate 
2 Denkschr. Akad. Wiss. Math. Naturw. (Wien) 79: 81. 1908. 
