61 
has been known only from literature and from Beyrich’s original 
material, most, if not all, of which appears to have been preserved 
in the Lindenberg herbarium of the Naturhistorisches Hof- 
museum at Vienna. From what is known of Beyrich’s travels 
and of North American eae it is evident that the Jefferson 
a Gainesville in question are in northern Georgia, where these 
o towns are county-seats about twenty miles apart. owever, 
oe who prepared the treatment of the Hepaticae for the 
second edition of Gray’s Manual, in some unaccountable way, 
attributed the species to Tennessee and to Tennessee only. The 
late Professor Underwood, in some critical notes on the American 
species of Riccia, published in the Botanical Gazette in 1894, 
omitted Riccia Beyrichiana on the ground that there was no 
recent evidence that it was a member of the North American 
n 1901, for the sake of comparison with a peculiar Riccia 
collected at Athens, Georgia, by Dr. Roland M. Harper, which I 
at first thought might prove to be the long lost species, I secured, 
through the courtesy of the officials of the ee aia 
Hofmuseum at Vienna a loan of Lindenberg’s authentic speci- 
men of Riccia Beyrichiana. As described in a previous paper* 
n the subject, an examination of this indicated that it dif- 
ered amply from Dr. Harper’s plant, which was then described 
as new under the name R. dictyospora. The opinion was ex- 
pressed that Riccia Beyrichiana was a valid species and that it 
was still, to all appearances, unknown except from the specimens 
collected by Beyrich, August 13, 1833, between Jefferson and 
Gainesville, North America. The hope was expressed that 
botanists resident in the south or those traveling in that region 
would consider its rediscovery a problem worthy of their atten- 
tion. The possibility of finding thissmall Riccia was the motive 
that led to my visit to Gainesville and to Jeffe 
During the day that I spent at Gainesv ile, Ge ground was 
covered with two inches of snow, which interfered with the 
finding of such plants as the small terrestrial Riccias. Beside a 
shaded rocky stream several well-known northern Hepaticae 
were met with, such as Conocephalum conicum and Pellia epi- 
* Bull. Torrey Club, 28: 161-165. 27 Mr rgo1. 
