6 
Dr. Venturi says in a recent letter: 
« Apropos of the confusion in nomenclature, it is sufficient te 
note that O. strangulatum, which originally was of the group of 
Orth. cupulatum, is in Lesq. and James’ Manual identical with O. 
Brauni. In Austin’s Musci Appalachiani I am certain that the 
specimens distributed as O. strangulatum are precisely O. Braunit, 
which should maintain its name, though more recent, because the 
original O. strangulatum of P. de Beauvois is a confused species.” 
As we have already shown, it is not proven that the original 
specimen of P. de Beauvois did belong to the group of O. cupu- 
latum. That the plants figured by Schwaegrichen are O. Porteri, 
there can be no doubt, but the original description throws a 
doubt on these specimens. We admit that O. Brauni would 
antedate O. strangulatum Sull. by nineteen years, but O. strangu- 
latum Beauv. if proven to be the same would antedate them both. 
That it can be proven seems more than probable, and as the her- 
barium of Palisot de Beauvois is preserved in the Delessert Herbar- 
ium at Geneva, I have sent specimens of both species to which 
the name has been applied, and asked to have them compared 
with the original specimens sent to Beauvois by Muhlenberg. I 
have also asked M. Eugene Autran to compare the specimen from 
the Boissier Herbarium figured by Schwegrichen with the originals. 
ORTHOTRICHUM STRANGULATUM, var. Sull. Icon. Suppl. 65, ¢ 47 
(1874). 
This variety is not referred to in the Manual. It is described 
by Sullivant as smaller and more rigid than the normal form, the 
leaves shorter and acute, the margin revolute almost to the apex, 
capsule oval, broader and less strangulate when dry, sub-exserted, 
on a long pedicel. 
Hab. on trees, Put-in-Bay, Lake Erie. 
ORTHOTRICHUM CUuPULATUM Hoffm. Deutsch. Fl. 2: 26 (1796). 
This species seems to be more rare in North America than 
has been supposed. After separating out O. Porteri and O. Les- 
curt Austin, placing Drummond’s No. 152 under O. nudum, 
though the calyptras are lacking in our specimens, and splitting 
up No. 176 of S. & L. Musci Bor. Am. Ed. 2 into O. nudum and 
O. Porteri, there remain only three specimens in our herbarium _ 
_ which agree with O.cupulatum. Leiberg’s from calcareous ledges — 
around Lake Pend d’Oreille, Idaho, which agree exactly with — 
