APPENDIX. 
projections, which, when laid down, showed no signs whatever 
of prothallic growth. 
In October I sent several specimens of these prothalli to 
Professor F. O. Bower, at Glasgow, and upon one of these he 
found numerous archegonia, both old and new, but no antheridia. 
The fact of these being true prothalli was, however, thus fully 
established. Later, in November, 1 found both antheridia and 
archegonia in abundance on one of the largest prothalli in my 
culture, an abnormal feature of which was the production of these 
organs in quantity on both upper and under surfaces in conjunction 
with root-hairs, which, however, predominated on the lower 
surface, as might have been expected. It remains, of course, an 
open question whether plants will be produced ; but, from general 
robustness of growth, I have little doubt on this point. 
I exhibit the plant under notice, upon which the fimbriate 
projections will be clearly seen, though, unless laid down as 
described, they have failed to develop more than quite incipient 
prothalli even in a close warm frame. I also exhibit the cultures, 
two in number, showing developed prothalli, and accompany my 
notes with a sketch of a portion of frond, natural size, and enlarged 
drawings of material after culture. 
This constitutes the fourth British species in which apospory 
has been shown to occur, viz., Athyrium Filix-foemina var. Claris- 
sima, Polystichum angulare var. pulcherrimum (several forms) 
Lastrea pseudo-mas var. cristata, and Scolopendrium vulgare var. 
crispum Drummondae. 
The second exhibit consists of cultures of a new aposporous 
find of Athyrium Filix-foemina by Mr. T. Bolton, who showed 
some pinnae at the meeting of the British Pteridological Society at 
Lancaster in August last. This had been found in the autumn of 
1892 in that district, and on examining the portions of frond 
submitted I was at once struck with its strong resemblance to 
that form of Athyrium Filix-foemina upon which apospory was 
first discovered, and was found in North Devon. The peculiar 
slenderness and attenuation of all subdivisions and the general 
make of the two Ferns were almost identical, though the second 
find is easily recognisable by most of the terminals being 
spiral. When the pinnae were handed to me they were accom- 
panied by the remark that “ the spores never seemed to ripen ; ” 
and upon turning them over, the reason was obvious, since I 
immediately recognised the peculiarly woolly appearance of the 
sori, indicative of apospory, the masses of incipient prothalli being 
in this case so large as to give in some places a suprasoriferous 
appearance to the frond. As Mr. Bolton very kindly provided 
me with material, I laid down several pinnae with the excrescences 
next the soil, and under close culture actual development 
