399 
I also have examined all the.American specimens in our 
herbarium and many European; and the latter always differ from 
the former in the abundance of the propagula, as well as in being 
less crisped. All the American specimens at Kew are without 
propagula. 
O. Sullivantii, Bauer, is referred to by Austin in the BULLETIN 
(I. c.) as “ growing on trees, having the peristome reflexed when 
dry and the leaves of a different texture from O. Hainesie,’ but I 
“can find no reference to it elsewhere. I have seen the specimens 
collected by Bauer, and they also have no filaments, and are 
probably O. papillosum, Hpe. 
Orthetrichum Pringlei, C. Miiller (1. c.) 
Pringle’s types were collected at Winchester Bay and Coos 
River, Oregon, and are remarkable for the light yellowish green 
color and flexuose branches, as well as for the curly leaves. 
Fine specimens have also been sent to us by Thomas Howell, 
from Yaquima Bay, in mats six inches across, unmixed with any 
other species. At first sight, it would not be referred to O. 
Lyellit, and without seeing the specimens growing and intergrad- 
ing I should incline to maintain this as a species. Ina letter from 
C. Miiller, to whom I sent a series of specimens, he says, July 13, 
1888, “Ich melde Ihnen, dass ich jetz damit einverstanden bin, 
mein Orthotrichum Pringlet ad forma longifolia crispata papillosa O. 
Lyellii zu bringen. Hampe nannte es einmal O. papillosum, ein 
anderer mal O. Pacificum.” 
I have seen all the types of Hampe’s species referred to, and 
he never had any specimens corresponding to O. Pringle. All 
his were dark green and rigid. The only other localities from 
which QO, Pringlei is represented in our herbarium are Vancouver 
Island, collected by Macoun, May 17, 1875 (203), and a few scraps 
collected by W. H, Shockley, at Candalaria, Nevada, and part of 
S. & L. Musci Bor. Am. number 185, which: also has flexuose ~ 
branches, though the color is darker green, collected by Bolander 
in California. All the other specimens collected in California by 
Bolander, Watson and M. A. Howe are dark and rigid. J. B. 
Leiberg’s specimens from near Lake Pend d’Oreille, Idaho, are 
bright green and stiff, and this is the easternmost locality repre- 
Sented in our herbarium. : 
