Rhodora 
JOURNAL OF 
THE NEW ENGLAND BOTANICAL CLUB 
Vol. 14, January, 1912. No. 157. 
NOTES ON NEW ENGLAND HEPATICAE,— IX. 
ALEXANDER W. EVANS. 
Except in New Jersey and California the species of Riccia (in its 
restricted sense) have not been very diligently collected in North 
America. This has been true even in New England, where the dis- 
tribution of the Hepaticae has been studied more thoroughly than in 
most other parts of the United States. Until about a year ago, 
when R. sorocarpa was reported from several localities,! R. arvensis 
was the only member of the genus definitely known to occur within 
our limits. During the past season, however, four additional species. 
have been detected in Connecticut. Three of these, R. Austini,. 
R. dictyospora, and R. Lescuriana, were found in or near New Haven, 
while the fourth, R. hirta, was found near Hartford. These four 
species, together with R. arvensis, are discussed in the present paper. 
Three other additions to the New England flora are likewise included. 
The first is Nardia scalaris, a species common in Europe but rare in 
America; the second is an Odontoschisma which European writers 
consider a variety of O. denudatum but which seems worthy of recog- 
nition as a distinct species; the third is Anthoceros crispulus, a species 
recently segregated from A. punctatus. At the close of the paper 
several additions to local state floras are enumerated. 
]. RiccrA ARVENSIS Aust., Proc. Acad. Philadelphia for 1869: 
232. Muddy shores of ponds and rivers, more rarely in fields. Rhode 
Island: listed in Bennett's Catalogue but without definite stations. 
Connecticut: Hartford (E. B. Harger); Wethersfield and West 
Hartford (Miss Lorenz); Orange and Middlefield (4. W. E.); East 
18ee Sheldon, Bryologist 13: 64. 1910. Also Evans, RHopoma 12: 193. 1910. 
