42 = W. G. Farlow—Disease of Olive and Orange Trees. 
ublished in the Annales des Sciences Naturelles, 3 série, tome | 
, 1840. Montagne seems to have had doubts as to the identity — 
of the Fumago Citri of Persoon with that of Turpin. Almost — 
simultaneously with the publication by Montagne of his genus 
Capnodium, Berkeley and Desmaziéres published, in the Jour- | 
nal of the Horticultural Society of London, vol. iv, p. 252, an 
article “On some Moulds referred by Authors to Fumago.” In | 
this communication, there is the following description of the — 
orange fungus briefly referred to by Persoon and Montagne: — 
“Capnodium Citri, Berk. and Desm. Sparsum, setosum; peri- — 
diis elongatis; mycelio ramoso moniliformi pulcherrime reticu- 
lato; sporidiis oblongis minutis. Fumago Citri, Pers., Myc. Hur, 
vol. i, p. 10; Turpin, 1. ¢. On leaves of different species of — 
itrus. France: Persoon, Léveillé.” a 
Of fungi occurring on olive trees, we have an early account — 
by Montagne in the Annales des Sciences Naturelles, 3 série, | 
The fungus from California is evidently the same as that which — 
has been known in Europe since 1829. We have examined — 
two authentic specimens fg sowie eleophila Mont.,—one 
from the Duby Herbarium, the other from that of De Notaris, 
and the structure is precisely that of the pyenidial-bearing pot 
tion of the California fungus. The stylospore-bearin portion — 
of our fungus is the Capnodium Citri of Berkeley and Desmazi- — 
éres, to which they refer the Fumago Citri of Persoon and Tur — 
pin. Montagne had observed only the pyenidial form—his — 
