REVUE BRYOLOGIQUE 
= Bryum murale Wils. — In Jackdaw Cr. Quarry, in Mid-West 
Yorkshire, March 1900, and Whitfield Gill, Wensbydale, in N. W. 
Yorkshire, June 1905. 
 Fonlinalis antipyrelica var. gigantea Sul. — In Cock Beck, 
Saxton, Mid-West Yorkshire, May 1897. > 
 Eurhynchium abbreviatum Schp. — On stiff clay bank, Healaugh, 
Nov. 1899, and at Falling Foss, Sept. 1905, both in N. E. Yorks- 
hire. 
Plagiothecium elegans Sull. var. longinerve Spr. MS. — In wood 
at Ryhill, S. W. Yorkshire, Nov 1899. | 
_. Amblystegium Juratzkanum Schp. — Is widely distributed all 
_ over Yorkshire. É 
 Brachythecium salebrosum Br, and S. — At Kirkham, June 1904, 
in N.E. Yorkshire and at Buckden, Aug. 1904, in Mid-West 
Yorkshire. 
Hiypnum polygamum Schp. — An interesting polyandrous form 
growing up Z'ypha latifolia in small marsh, Naburn in East Yorks- 
hire, Nov. 1899. 
… Hypnum molluscum var. fastigiatum Bosw. — On slope of hill, 
Kilburn in N. E. Yorkshire, Apr. 1898. a 
 Hypnum lycopodioides Schw. — Is very fine, and covering 
many square yards of marshy ground on Skipwith common, in 
E. Yorkshire, May 1897. 
TERATOLOGY IN MOSSES 
This subject has received very scant attention from bryolo- 
gists, which is my reason for mentioning the following remar- 
kable case: — On 7th May 1900, I found the rare moss Parbula’ 
convoluta var. Sardoa B. et S. on the edge of a narrow cinder 
path between two high walls in what is called in Yorkshire 
à & ginnel ». This was at Barkstone, in Vice-county 64. The pel 
lucid apical cell of the nerve in this gathering bifurcates, with 
the two parts almost at right angles to each other. This gives à 
curious appearance to the leaf. On 22nd March 4903, I found the 
same moss of a very striking yellowish-green colour on a brick 
Wall in the open field at the new drainage works at Naburn, in 
. Vice-county 61. I was surprised to see the same bifurcation of the 
_ pellucid apical cell of the nerve in this specimen also. E think 
there could scarcely be à connection between the two casés, asthe 
two habitats are ten miles apart as the crow flies ; also the Barks- 
tone habitat is very much in shade, and sheltered from wind, 
 whereas the Naburn one is quite exposed in the open. I must say 
the Naburn specimen had the appearance of being a new arrival 
