— 68 — 
Dr. Andrews 2 has recently described a new hybrid moss from material 
collected on the surface of fine silt that had been pumped upon a fresh marsh 
at Ithaca, N. Y., in the progress of reclamation work. The antheridial parent 
was Physcomitrium turbinatum, and the archegonial, Physcomitrella patens. 
Both parents, with various species of Physcomitrium and Aphanorrhegma, were 
abundant in the vicinity. Dr. Andrews gives a detailed description of the 
sporophyte, and mentions other cases of hybridism which have been described 
in mosses. 
Four new species of Lejeuneae are described by Dr. Evans 3 in a recent issue 
of the American Journal of Botany .' The four are: Cololejeunea contractiloba, 
Lejeunea cladogyna, Euosmolejeunea parvula, and Ptychocoleus heterophyllus, all 
from Florida. Besides detailed descriptions and figures of these species, there 
are extended critical notes upon the relationships and distribution of the plants 
described, a description (with figure) of Lejeunea longifissa Steph., and addi- 
tional descriptive note upon Rectolejeunea Maxonii Evans. 
E. B. C. 
EXCHANGE DEPARTMENT 
Offerings— To members only. Return postage should accompany the re- 
quest. It is better to send a stamp, rather than a stamped envelope; many 
of the latter do not fit specimen packets. 
Mr. Edward B. Chamberlain, 18 West 89th Street, New York City.— 
Breutelia arctuata Schimp., st. Coll. Mr. Rhodes, in Wales. Dicranoweisia 
cirrhata, Lindb., c. fr. Coll. Mr. Rhodes, in England. 
Dr. Wm. H. Wiegmann, 436 East 5th Street, New York City. — Dicranum 
rhabdocarpum Sulk, Coll. Dr. Jos. Bequaert, in Arizona. 
Mr. Frank E. MacDonald, 417 California Avenue, Peoria, 111 . — Dicranella 
heteromalla Schimp., Dicranella varia Schimp., and Catharinaea angustata Brid., 
all c. fr. from Illinois. 
2 A. LeRoy Andrews. Bryological Notes IV. — A New Hybrid in Physcomitrium. Torreya, 
18 : 52-54- (March, 1918.) 
3 Alexander W. Evans. Noteworthy Lejeuneae from Florida. Am. Journ. Bot. 5 : 131-150. 
figs. 1-5 • (March, 1918.) 
