1900] BOTRYTIS AND SCLEROTINIA 407 
FIG. 30. Conidia of ora cinerea germinating onand entering epidermis 
of an onion leaf. 
Fig. 31. Mycelium of Sc/. Libertiana, with organs of attachment on 
surface of lettuce leaf. 
G. 32. Longitudinal section of Peziza fructification of Sc/. Libertiana. 
Fic. 33. Asci and paraphyses of same, more enlarged. 
Fig. 34. Commencement of formation of a sclerotium. 
FIG. 35. Peziza stalk arising from a sclerotium. 
Fic. 36. Mature Peziza form. 
Fic. 37. Peziza postuma B. & W. (Copied from Smith.) 
FIG. 38. Sclerotinia (Peziza) bulborum Wak. (Copied from Oudemans.) 
Fig. 39. Cross section of sclerotium. 
PLATE XXVIII, 
Fig. 40. Section of Botrytis sclerotium from linden. 
Fic. 41. Typical sclerotia of Sclerotinia Libertiana. 
FiG. 42. Small sclerotia from lettuce. 
Fig. 43. Sclerotial crust formed by lettuce fungus. 
FIG. 44. Sclerotia of Botrytts cinerea. 
Fig. 45. Formation of secondary scleroti 
FiG. 46. Cross section of rose twig, sowing Botrytis filaments in the bast. 
Fic, 47. Longitudinal section of sam 
Fig. 48. Botrytis filaments in onion 
. Botrytis (or Sclerotinia) filaments in turnip 
Fig. 50. Sclerotinia.(or Botrytis) filaments in lettuce leaf, advancing into 
sound tissue. 
Fie. 51. Sclerotinia (or Botrytis) filaments in badly affected lettuce stem. 
— 
_ 
@ 
> 
a) 
