MOSSES FROM CHINA AND JAPAN. 461 
hitherto been known only from India (Sikhim, Khasia, Manipur) 
and Lower Burma (Moulmein). Mitten (Journ. Linn. Soc. iii. 
(1859) Supp. p. 153) describes the stem-leaves as being without 
lamelle, but in many leaves, more especially in the case of the 
Chinese examples, there are a few low ridges on the ventral surface 
of the nerve, which evidently represent lamelle (see Pl. 17. fig. 19). 
POLYTRICHUM GRANDIFOLIUM, Lindb.—Japan: Nippon (leg. 
Savatier) (in Schimper’s Herbarium under the name P. fastigiatum, 
Mitt.). The specimen agrees perfectly with Lindberg's description 
of the species, and with the specimens recorded by Mitten (8), 
collected by Bisset in Japan. 
The species is evidently closely allied to P. fastigiatum, Mitt., 
from the Himalayas, but differs in the translucent narrower border 
of the lamina, the narrower longer cells of the base, aud 
the verruculose terminal cells of the lamelle. In P. fastigiatum 
the margin of the lamelle is sometimes formed of two cells, 
as in P. grandifolium (see Pl. 17. figs. 42-45), but the cells are 
quite smooth. In P. grandifolium the lamellæ have occasionally 
an unthickened margin (see figs. 43, 46), but this is much more 
frequently the case in P. fastigiatum, which, in fact, serves to 
connect the two divisions A and B of Lindberg's classifieation 
(Observat. de form. pres. europ. Polytrich. pp. 98, 99). 
P. contortuM, Lesq. 
In 1860 Sullivant and Lesquereux (5) described a moss under 
the name of Pogonatum japonicum from “mountains north-east 
of Hakodadi, Japan.” In the Kew Herbarium there are two speci- 
mens named “ P. japonicum ’’—one labelled “ Japonia (Textor)," 
the other * Yezo, Mt. Luwozen, Aug. 1893, leg. Miyabe, com. 
Brotherus." Both these specimens agree perfectly with P. con- 
tortum; and in the original diagnosis of P. japonicum the 
characters given are those of P. contortum. 
Brotherus (22) records the above-named plant from Yezo as 
P. japonicum, and refers to the same species examples from Fuji- 
no-yama (no. 47) and Chickibu (no. 24), collected by Mayr in 
1890. "These two latter specimens were sent to Kew in 1891 by 
Brotherus as P. contortum, so that it appears that this author 
has only lately regarded the Japanese plant as a distinct species. 
I feel convinced, however, that P. japonicum is identical with 
P. contortum ; and it may be observed that the characteristic bi- 
stratose margin of the lamina (see Sulliv. Ie. Musc. Supp. tab. 42. 
