274 MOSSES FROM THE 
19. M. involutifolium, var. capsula breviore, siccitate lævi.—On 
rocks and on trunks of trees, &c., Chusan. 
20. Ptychomitrium, Br. and Schimp. (?) (vel Nofarisia ?) allied to 
Pt. polyphyllum, but the sete and the leaves are considerably 
shorter. Capsule ovate, erect. Peristome composed of six- 
teen broad cribrose teeth, scarcely cloven. Calyptra absent, 
but said to be dimidiate and hirsute. On wet stones in a glen, 
Sam-Sa Bay. 
21. Bryum argenteum. 
22. B. capillare, var. (P) Specimen imperfect. Leaves less twisted 
when dry than is proper to this species. Moist rocks in the 
mountains, Pih-quan. 
23. B. truncorum, Bridel. B. Aubert, Montagne, in * Musci 
Nilgherienses.” Moist places in the mountains, Chusan. Of 
this Moss there is no published figure, and Brywm Auberti of 
Schwaegrichen has, by himself, and by Hornsch. in Fl. Bra- 
siliensis, been confounded with a Brasilian Moss more nearly 
allied to B. erythrocaulon, Schwaegr. but distinct from it in the 
spinoso-serrate leaves. The true B. Auberti has the stem 
densely covered with radicles, and the leaves when dry are 
widely-spreading, opaque and coriaceous. 
24. Mnium affine, var. y. rugieum, Br. and Schimp. (?) foliis sic- 
citate vix crispatis perichætialibus longioribus angustis.— This 
is not much unlike M. cuspidatum, but the inflorescence is 
dioicous. Moist shaded bank in a glen, Pih-quan Island. 
. 95. Mnium radiatum, (n. sp.)  Dioicum: caule gracili apice 
ramoso, ramis verticillatis patentibus, foliis lanceolatis denticu- 
latis, margine recurvis submarginatis solidinerviis (dorso spinu- 
losis) patulo-incurvis siccitate intortis, perichætialibus con- 
formibus, capsula pendula, operculo hemisphærico-conico. 
(Tab. X. A.) 
Has. Moist shaded bank in a glen, Pih-quan Island. 
Stems an inch and more in height, slender, with a single whorl 
of slender, spreading branches just below the flowering apex, as 
in the Bridelian genus Pdilonotis. Leaves narrow, dark green, 
scattered, incurved, especially when dry, in which state the Moss 
