254 TRANSACTIONS AND PROCEEDINGS OF THE [Szss. ixxt. 
Mr. R. L. Harrow exhibited the following plants in flower 
from the Royal Botanic Garden :— Saitek 
Acacz Drummondii, Brunfelsia  calyeina, — Cotyledon 
Sulgens, Eriostemon Hillebrandii, Grevillea sericea, Lycaste 
Skinnert, Maytenus ilicifolia, Platyclinis glumacea, Semper- 
vium Youngianum, Skimmia Veitchii, Styphelia viridis, 
Mr. L. Stewart showed Aloe variegata, Laportea moroides, 
Kalo-rochea langleyensis, and Crassula lycopodioides. 
Mr. H. F. Tace, F.LS., exhibited an apple attacked by the 
fruit-rot fungus, Monilia fructigena, Pers., which showed in a 
very characteristic manner the remarkable jet-black colour 
which the fungus sometimes imparts to affected apples. The 
fungus is said to be unable to attack perfectly sound apples, 
but as a wound-parasite gains a lodging in the fruit through 
injuries to the epidermis caused by insects, ete. Asa result 
of the activity of the fungus-mycelium within the tissues, 
the flesh of the apple ultimately turns brown, and, as a rule, 
patches of the gonidial spores very soon make their appear- 
ance on the surface. More rarely, as in the specimen 
exhibited, black sclerotia form within the tissues, accom- 
panied by the formation of a dark coloured mycelium which 
fills the tissues of the rind. It was stated that it is the 
presence of this dark mycelium under the skin which gives 
apples so affected their peculiar jet-black colour. 
Mr. Tacc showed also a series of sections of American 
woods. 
