Marshall Ward. — On a lily-disease. 361 
secondly, the spores of the latter germ inate more rapidly, 
and at once — much more quickly than those of lily-fungus — 
proceed to the development of large organs of attachment of 
the complex tassel-shape, like those in Fig. 26. 
Some time ago I received from Kew a piece of moribund 
stem of an Amorphophallus , covered with a grey mould which 
turned out to be a Botrytis (. Polyactis ), very like P. vulgaris , 
if not identical with it : in the interior of the stem were nu- 
merous small black sclerotia, each about the size of a piece of 
mouse-dung, and exactly resembling it to the unaided eye. 
These sclerotia arose from the same mycelium as the Botrytis , 
and cultures of the conidia of the latter gave rise to mycelia, 
etc., exactly similar to those just described for Polyactis vul- 
garis. I mention this because it affords another indication of 
the kind of fungi we are here concerned with, and furnishes 
another confirmation, if one is needed, of the connection 
between Botrytis (. Polyactis ) and the sclerotium - bearing 
Pezizas. 
But there is abundance of evidence in addition to show 
that the fungus of the lily-disease is a Botrytis , of the Poly- 
actis group, from which I may select the following. 
In 1877-78 Eidam 1 published some interesting results. 
He cultivated the spores of Botrytis elegans , Lk., in nutritive 
solutions such as extract of plums, and obtained sclerotia 
developed from the mycelium. 
In 1 880 Frank 2 published an interesting account of a fungus 
parasitic on turnips, the mycelium of which developed both 
sclerotia and Botrytis-c onidia : the sclerotia produced a Peziza 
which Frank calls P. sclerotioides , Lib., but, as De Bary 3 
points out, this is a slip for P. Sclerotiorum , Lib. Frank also 
calls his Botrytis , B. cinerea , a name which De Bary rejects, 
because B. cinerea is the Botrytis- form of Peziza Fuckeliana. 
Be this as it may, Frank found that the conidia of his 
Botrytis , when sown in the turnip-plant, put forth germ-hyphae 
1 Ber. d. Schles. Gesellsch. 1878, p. 151. Bot. Zeit., 1878, p. 174. 
2 Die Krankheiten der Pflanzen, p. 530. 
3 Bot. Zeit., 1886, p. 457. 
B b 
