332 LEPIDODENDRON VELTHEIMIANUM. [Sess. LxXxu, 
directions is also shown in that genus. Hence the occurrence 
of similar tissue in similar position in the megaspore of 
Lepidodendron Veltheimianum leads to the conclusion that 
the prothallus in that species was similar to that in 
Selaginella, As other Carboniferous Lepidodendra had 
probably a similar development, we may safely say that 
the gametophyte generation in some JLepidodendra was 
similar to that of Selaginella. 
EXPLANATION OF PLATE VII. 
Figure of megaspore containing prothallus. x48. Gordon collection, 
No. 158. a, a, ear-like lobes of spore wall; 6, cluster of knobbed 
spines all curled up together; c, small-celled archegonial tissue ; 
d, large-celled prothalloid tissue on the apex of which ¢ is 
situated. 
Dr. A. W. Borruwick showed some Disease-causing 
Micro-fungi. 
Dr. R. Stewart MacDouGAtLu showed a section of oak 
with galleries of Cossus ligniperda. 
Mr. J. Morrison, M.A., exhibited the fruit of Cariniana 
pyriformis. 
Mr. R. L. Harrow showed the following plants in flower 
from the Royal Botanic Garden:—Amasonia calycina, 
Bryophyllum crenatum, Caladenia carnea, var. alba, Corylopsis 
paveifiora, Crassula hemispherica, Dendrobium Cordelia rosea, 
Gomesia foliosa, Hakea acicularis, Hamamelis arborea, 
H. japonica, var. Zuccariniana, Iris alata, Lindenbergia 
grandiflora, Odontoglossum maculatum, Primula x digenea, 
P. Palinuri. 
