324 THE BOTANICAL EXCHANGE CLUB OF THE BRITISH ISLES. 
L. perenne x mnltiflorimi. We observed this combination 
in Kevv Gardens and also near Oxford, and probably it occurs in 
other localities where the parents are associated. This hybrid 
appears to be sterile, and the different forms it assumes may con- 
veniently be divided into two groups as follows : — 
L. perenne x multiflorum. In vegetative characters more like 
Z. perenne^ but much stouter, with leaves nearly or quite glabrous, 
bright green, spikelets smaller ; some of the flowering glumes 
shortly awned, others without awns, rachis scabrid. Barren. The 
specimens now distributed apparently belong here. 
Z. niultijlonim X perenne. More like the first-named plant 
[i.e, multifloruin\ but the spikelets have less numerous flowers, and 
glumes longer than is usual in Z. multiflorum. — A. B. Jackson and 
K. Domin. The labels give Z. italicum x perenne. — H. J. R. 
Z. perenne X multiflorum (Z. hybridum, Hackel ). Near God- 
stow, Berks. Dr. Domin pointed this out to me in Sept. 1907, 
and it is similar to specimens given me by Mr. A. B. Jackson 
which Dr. Domin showed him near Kew. — G. Claridge Druce. 
Z. multiflorum.^ Lam. — E. Hackel. 
Jgropyron, sp. jRef. Alo., 3226. Banks of the Barret, towards 
its mouth, between Stert and Combwich, v.-c. 5, S. Somerset. 
22nd Aug. 1907. I suppose that this is only a glaucous, maritime 
form of A. repens, though it looked very peculiar when growing. — 
Edward S. Marshall. A. repens, var. maritimum, Hack. nov. 
comb. = Triticum repens, var. maritimum, Koch. & Ziz., ‘ El. Pal.’ 
(1815). Agropyron 7 -epens, var. littorale, Lange, ‘Handb.,’47 (1850). 
— E. Hackel. 
Lastraa Filix-mas, Presl., var. abbreviata, Bab. Clifden, 
Connemara, Ireland: i6th Aug. 1907. A curious variety that 
attracts notice in many spots near Clifden, growing out of rubble 
stone walls in exposed places. The crowded overlapping pinnre 
and pinnules, due to a general shortening of the internodes; and 
the dense clothing of the stipe, are such as might be expected on 
plants fully exposed to weather on the verge of the Atlantic. Here 
and there one sees an approach to \2s. paleacea, Moore. — James W. 
White. These specimens, although I think correctly named, differ 
from the description in ‘ FI. Franc.’ and in Newm. ‘Brit. Ferns,’ as 
also from authentic Ingleboro’ specimens, in having more numerous 
sori at the base of each pinnule. In the typical plant there are 
I or 2, very rarely three on the lower pinnules, and they are 
arranged nearer the midrib of the pinna. In my example of Mr. 
White’s gathering the sori are quite often 5 or 6 and sometimes 
7 on each pinnule, the lowest pair being further from the rachis, 
