116 Disease of Olive and Orange Trees. By W. G. Farlow. 
the publication by Montagne of his genus Capnodium, Berkeley 
and Desmazieres published, in the 'Journal 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 oranoe fungus briefly referred to 
by Persoon and Montagne : " Capnodium Citri, Berk, and Desm. 
Sparsum, setosum ; peridiis elongatis ; myceho ramoso moniliformi 
pulcherrime reticulato ; sporidiis oblongis minutis. Fumago Citri, 
Pers., ' Myc. Eur.' vol. i. p. 10; Turpin, 1. c. On leaves of 
different Sjoecies of Citrus. France : Persoon, Leveille." 
Of fungi occurring on olive trees we have an early account by 
Montagne, in the 'Annales des Sciences Naturelles,' 3 serie, 
tome 12, 1849, of a fungus mentioned in the 'Bull. Soc. Centr. 
d'Agric' 2 serie, iv. p. 267, under the name of Antennaria 
elwophila, which had been found at Perpignan in 1829, which 
caused ravages somewhat the same as the California fungus, 
and which had previously been referred by him to Cladosporium 
Fumago. It was probably the same plant as the Torula Olese 
of Castagne. Tulasne, however, in the ' Carpologia Fungorum,' 
vol. ii. p. 279, showed that the Freiesian genus Antennaria was 
the pycnidial state of species of fungi of which Capnodium was the 
ascigerous state. He restored the old name, Fumago, and gave a 
detailed account of Fumago salicina, which was illustrated in his 
unrivalled manner. 
The fungus from California is evidently the same as that which 
has been known in Europe since 1829. We have examined two 
authentic specimens of Antennaria eldeojphila, Mont. — one from 
the Duby Herbarium, the other from that of De Notaris — and the 
structure is precisely that of the pycnidial-bearing portion of the 
California fungus. The stylospore-bearing portion of our fungus is 
the Capnodium Citri of Berkeley and Desmazieres, to which they 
refer the Fumago Citri of Persoon and Turpin. Montagne had 
observed only the pycnidial form — his Antennaria elasophila — on 
olives ; whereas, on the orange, he found only the stylospore form, 
his Capnodium Citri. Berkeley and Desmazieres make mention 
only of stylospores on species of Citrus. We have been so 
fortunate as to find, on the specimens from California, both pycnidia 
and stylospores, and on both olives and oranges, — which proves 
the identity of Antennaria eldeophila (Mont.) and Capnodium Citri 
(Berk, and Desm.). The perfect ascigerous state of the fungus we 
have not found ; nor do Berkeley and Desmazieres seem to have 
met with it, for they add to their description " asci have not been 
observed." We have not been able to find any recorded instance 
of asci having been found in Capnodium Citri. Tulasne remarks, 
— quite pertinently, as it seems to us — that, until better known, 
Cap)nodium Citri and Antennaria elseopliila can scarcely be con- 
