131 
In 1902 or mca Ce capo a remarkable account of the on 
morphism of a species of Botrytis attacking Salvia Hor 
mmum, L. His cualales eke be summarised as follows: —The 
senate: which the author designates Botrytis hormini, gives rise 
(i.) a sterile mycelium maieplyeg by fragmentation and 
producing the forms vi., and vil. 
(ii.) the type Polyactis na reproduces by conidia 
(ui.) the type Cristularia with microconidia, which never 
reproduce the Cristularia form, but the type ii. (Poly- 
re and the type vii. (Gamocladocephalo-merizo- 
a ) ak e sclerotia, 
(Eyre sonidisl ‘form of the type Alternaria which gives rise 
to simi ores. 
_(vii.) an andi conidial ape Gamocladocephalo-merizo- 
sporica having two kinds of microconidia. The first 
correspond to those of the form ii. (Polyactis) ibe give 
rise either to a similar type (Colyact) or to the form 
vii. (abnormal). The second of the type iii. (Crate. 
laria) ee ped a io Rie type ili. (Cristularia) or the 
type ii. (Polyactis). 
It is very unfortunate — peace” all experimental details 
are omitted from this a 
his polymorphism is so Peatnané and of so unusual an order 
that until some degree of confirmation is forthcoming the author’s 
interpretation of his results must ne accepted with much reserve. 
n examination of the many fi ee ites ying the memoire 
makes it appear very probable that ch es i. (fragmenting sterile 
mycelium i. (Polyactis), lii. (Cristularia), iv. “acne vii. 
mer rious phases of the 
common fungus Botrytis cinerea: whilst v. aha vi., the Macros- 
portum-Alternaria types, were merely different growth phases of 
the common contaminating fungus Macrosporiwm sp. The latter 
supposition receives strong confirmation from the fact that on ne 
rm 
represented in plate xx. of his work. 
erhaps no single fungus has baat so thoroughly aig 
by so so Many competent observers as Botrytis ct a, OF is 
centre of such an extensive literature; and yet only in the six or 
= Parneti, R.: Atti, del. R. Ist. Bot. d’Univ. di Pavia, vii. 1902. 
a2 
