195 
OBSERVATIONS ann EXPERIMENTS 
ON 
THE ORIGIN OF THE PLANTULA OF MOULD. 
"Tus mould, which I have examined, and in- 
tend fimply and briefly to defcribe, fprings on 
moiftened bread, apples, pears, melons, or gourds, 
beginning to fpoil. It may be divided into twé 
kinds, the one very fimple and eafy to be obfery- 
ed: the other complex and intricate, which can 
only be underftood by a generic defcription. Let 
us begin with the former. 
One fpecies is without branches, and each fila- 
ment bears a globule at the fummit, pl. 5. fig. 3. 
another is ramofe, but with this difference, that 
fome plants have a globule at the vertex, while 
others have none, fig. 2. Thefe globules thal! 
always be termed the minute heads of mould; 
N 2 but 
