BOTANICAL INFORMATION. 397 
Florence, a report by Professor Amici was read on the disease of the 
Mulberry-leaf (Bonplandia, vol. i. p. 167), and on the fungus consi- 
dered to be the cause of it. This fungus was first described by Turpin 
in 1838, in the * Annals of the Society of Horticulture of Paris,’ vol. xxii. 
under the name of Fusarium lateritium, and a few years afterwards by 
Dr. Sandri. According to Professor Amici's observations, it is de- 
veloped on the very surface of the leaf, and does not, as is usually be- 
lieved, grow from under the epidermis. Whether it be the cause or 
the effect of the disease of the Mulberry-leaf, he does not pretend to 
decide, but he seems to be rather of the latter opinion; he also thinks 
the disease is not contagious. 
Bertoloni has published another number of his Flora, containing the 
description of Composite ; I shall proceed, as usual, to comment briefly 
on it. Genus Gnaphalium : it is made to comprise Gnaphalium, Hli- 
chrysum, Omalotheca, Antennaria, and Leontopodium of modern bo- 
tanists; G. citrinum, Lam., is the name adopted for the plant usually 
called G. Stechas, this denomination being transferred to the G. an- 
gustifolium, Auct.; several interesting species from the southern parts : 
of Italy are mentioned.—Filago: F. spathulata and eriocephala are 
united to F. Germanica; F. Lagopus, Parl., to F. arvensis.— Elichrysum, 
this genus being limited to F. frigidum.— Xeranthemum.— Carpesium.— 
Conyza, combining C. squarrosa and limonifolia, and the genus Phag- 
nalon ; P. Tenorei, Presl, is considered a synonym of C. rupestris, L.— 
Erigeron, of which Conyza ambigua, DC.(or E. linifolium, W.), forms part, 
with Æ. Drebachensis, Mill added as a synonym; the E. uniflorus of 
Central Europe is joined to Æ. alpinus, and considered different from the 
Linnean plant ; we further remark the absence of E. glabratus from the 
Italian flora.—Jasonia.—The new genus Cupularia of Grenier and Go- 
dron is adopted.-—Zomogyne.— Tussilago.— Petasites, comprising Nar- 
dosmia.— Senecio : S. leucanthemifolius, Poir., vernus, Biv., humilis, Desf., 
incrassatus, Guss., and pygmaeus, Guss., are all joined to S. crassifolius, 
W., as Moretti and Moris have it; S. chrysanthemifolius, DC., is made 
a synonym of 5. squalidus, L., to which is added S. Gallicus, Vill., as a 
variety ; 8. Nebrodensis, DC., Prodr., is a synonym of S. /aciniatus, Bert., 
the author thinking that the true. Nebrodensis of Linnzeus is the same 
as the S. Duriæi, Gay in Boiss. Voy. en Esp. ; the S. incanus, B. ita- 
licus, of Persoon, is the S. Persooni, De Notaris, and considered a good 
species ; S. erucifolius, Auct., is given under the name of S. tenuifolius, 
