CoRNE: STATION FOR DRYOPTERIS FILIX-MAS 95 
while the even rows of sporangia were so near the edges 
as to deceive me at first sight into thinking the plant a 
marginalis. Closer inspection, however, showed that 
they were not quite close to the margin and on some of 
the pinnules were halfway between margin and midvein. 
I would have returned to that field for further investi- 
gation, but my stay at Barnard was drawing to a close 
and time failed me. Fortunately I recollected having 
seen other similar ferns scattered about, so my con- 
science was clear of having even inadvertently robbed 
the spot of a rare plant. About fifteen feet from where 
it grew I gathered some fronds of D. filiz-mas. 
On returning to Cambridge I took a frond of my find 
to the Gray Herbarium rooms at the Botanical Gardens, | 
and Professor B. L. Robinson kindly looked into es 
matter for me and identified the fern as the new hybrid 
D. filiz-mas * marginalis. The new station is only a_ 
few miles from the first one at North Bridgewater. The — 
hybrid proved not to be an evergreen but turned brown — 
and withered at the first touch of frost. 
ie: Pe sigies the great round heads of the croziers, 
Jin April, allthickly 
covered. with silky bright brown scales. Now at the 
end of May, six of these are well up and uncoiling rapidly, 
the tallest measuring already twenty-nine inches. _ Their 
stipes can scarcely be seen through the dense covering _ 
_ of scales, their color is a bright green and all of the Se fronds 
are fertile. Tw more fronds are just starting on : 
