383 
Of the above genera, Hygrobiella is represented by three north 
European species one of which H. laxifolia (Hook.) Spruce has 
recently been sent in from Idaho collected by Sandberg ; it is also 
found in Greenland; Pleuroclada, a monotypic genus of boreal 
regions, has been found by Macoun in the Rocky Mts. of British 
America ; Odontoschisma has three American species as known at © 
Present; Aantia is represented by four American species, one of 
them, X. arguta (N. & M.) Lindb., introduced in greenhouses ;* 
Bazannia, so abundantly represented in tropical and south Tem- 
perate regions, has with us the two northern species that are like- 
wise common in Europe; and Lefidozia, likewise a large genus of 
universal distribution, has with us only three species.} 
The remaining genus, Cephalozia, is the largest and the most 
widely distributed genus of the tribe on our continent. The Euro- 
Pean species were somewhat increased in number by the researches 
of Lindberg in Scandanavia, and the greater part of the tangled 
synonomy, to which Lindberg also contributed, was worked out 
by Spruce in 1882, athough he added to the tangle by knowingly 
giving to one species the same name that Lindberg had already 
given (unwittingly) to another species! The latest curiosity in 
the nomenclature of the genus is that expressed by Schiffner,t 
who, after establishing all of Spruce’s subgenera as genera, rejected 
the old generic name, Czphalozia, which has been in use for over a 
half century, and adopted the subgeneric name Eucephalozia, first 
used by Spruce in 1882 to designate the typical members of the 
§enus, as a generic name! 
Cephalozia was proposed as a section of /ungermania by Du- 
mortier in 1831 and was erected into a distinct genus by the same 
*Kantia aquatica Underw. in Hep. Amer. (exsic.) no. 107, is a curious sub, 
merged form of Lejeunea (probably L. serpyllifolia) which has lost its basal lobes, 
*Pparently a case of reversion resulting from its abnormal habitat. Herr Stephani dis- 
_ Covered rudiments of a perianth in one specimen which led to the determination of the 
true relations of this curious form. 
Th chaetophylla tenuis Pears, cited by Evans (Bull. Torr. Bot. Club, 20: 308 
1893), is a true Biepharostoma and must be known as &. nematodes (Aust.). It is 
Cephalozia nematodes Aust. Bull. Torr. Bot. Club, 6: 302. 1879. L. Californica 
Aust, Bull Torr. Bot. Club, 6: 19, 1875, is of course Prilidium Californicum. : 
Loc. cit, 97. A few such anarchistic movements in nomenclature, exceeding 
anything produced in this country with all its objectionable « Freiheit,” and entirely 
without reason or warrant, mar this otherwise excellent work. 
