150 
THE UROMYCES OF EUPHORBIA. 
of the difference of the Teleutospores, it is very essentially dis- 
tinguished by its whole biological condition and growth. While 
Uromyces excavatus (DC.) and also Uromyces scutellatus , L6v., 
bring forth only one generation of Teleutospores yearly, Uromyces 
Pisi, Str., forms several successive generations of Uredo stroma, 
which are finally followed by the Teleutospore pustules ; further, 
the latter grows only in separate little heaps, and is never accom- 
panied by Spermogonia These parallel species of Uromyces 
belong, therefore, to very different sections of the genus. On the 
contrary, Uromyces Pisi, Str., as already shown above, stands very 
near to a species on closely allied Host plants. 
Note. — The reference in “ Grevillea,” of the Uromyces upon 
E. exigua to U. excavata has since been found to be an error. With 
the above observations on the two species of Uromyces we mainly 
concur. — Editor . 
BERKELEY HERBARIUM. 
The unique Herbarium of Fungi which the Rev. M. J. 
Berkeley has presented to the nation is in course of removal to 
Kew. As an evidence of the immense value of this collection, we 
may instance the Order Agaricini , which is represented by the 
following number of species : — 
Agaricus 
1,286 
species. 
Hiatula . 
10 
>> 
Montagnites 
1 
>> 
Coprinus 
49 
tt 
Bolbitius 
8 
ft 
Cortinarius 
90 
tt 
Gomphidius 
4 
tt 
Paxillus 
23 
tt 
Hygrophorus . 
85 
tt 
Lactarius 
49 
tt 
Russula . 
34 
tt 
Cautharellus 
35 
tt 
Nyctalis . 
3 
it 
Heliomyces 
6 
tt 
Marasmius 
231 
it 
Leutinus 
110 
a 
Panus 
33 
it 
Xerotus 
15 
11 
Trogia 
4 
it 
Schizophyllum 
5 
it 
Racophyllus 
1 
ft 
Lenzites . 
35 
if 
22 genera 
. 2,087 
species 
