38 SELIGERIA CALCICOLA. 
It would seem, then, that the two sets of anthers had different 
powers either on their own stigma or on that of the flower of another 
plant, for we dare not presume to say that the pollen of the sagittate 
anthers was wasted; but further experiments are needed to establish 
these points, and it is with the view and hope that persons who have 
inclination and opportunity will institute such experiments, and decide 
this interesting question, that these crude notes are here inserted. 
Shrewsbury, January 4, 1866. 
SELIGERIA CALCICOLA, Mitten. 
By W. Caxrrvtuers, Eso., F.L.S. 
This inconspicuous Moss, noticed by the Rev. M. J. Berkeley in his 
* Handbook of British Mosses’ (1863), p. 289, as a new species in 
the possession of Mr. Mitten which he had not seen, and described 
and figured by Mr. Mitten in the July number of the ‘Journal of 
Botany’ for 1864, was ‘published in the same year by Dr. Schimper 
in his first Supplement to ‘Bryologia Europea,’ SELIGERIA, p. 1. 
t. i, under the name of Seligeria subcernua. Although acquainted 
with Mitten’s name, and aware that Berkeley had noticed it, he pro- 
posed this new trivial designation as characteristic of this, the only 
species of Seligeria which has an inclined and unsymmetrical capsule, 
and rejected the name calcicola, as it was equally applicable to all the 
species of the genus, inasmuch as they all grow on calcareous rocks. 
The species, however, had already been published as British by Sir 
J. E. Smith, in * English Botany,’ pl. 2506, and both names must 
give place to his older designation. When arranging, some years ago, 
the collection of Mosses in the British Herbarium of the British Mu- 
seum, I noticed that Smith's Gymnostomum paucifolium was a different 
plant from G. tenue, Hedw., to which it had been referred by Hooker, 
in ‘ English Flora,’ vol. v. pt. 1. p. 10, and with a query by Wilson in 
his * Bryologia Britannica,’ p.41. Unable to refer it to any of Wil- 
son's species of Gymnostomum, I placed it at the time as an additional 
species, writing a short distinguishing character in my copy of the 
‘ Bryologia Britannica.’ When showing our collection to Dr. Schimper, 
on the occasion of his recent visit to Britain, I drew his attention to 
