BRYOLOGICAL NOTES. 7 
previously been seen in the present species, is cucullate in shape, 
and slightly scabrous towards the apex; it measures 4 mill. long. 
The synonymy and distribution of D. rugosus are as follows :— 
Leucodon rugosus Hook. Muse. Exot. i. tab. xx. (1818). 
Dicnemon rugosum Schwaegr. Sp. Muse. Suppl. 1. i. 127 (1828); 
ce. m1. ii. 72, tab. elxxiv (1827); Brid. Bry. Univ. ii, 216 
(1827) ; C. Miill. Syn. Muse. Frond. i. 847 (1849). 
D. Banksit C. Mill. in Bot. Zeit. xvi. 161 (1858); Besch. in 
Ann. Sci. Nat. vii. sér. xx. 18 (1895). 
Eucamptodon Banksii C. Mill. Gen. Muse. Frond. 248 (1901). 
Dicranum densifolium Web. & Mohr MSS. (fide C. Mill.). 
Di i : 
. in herb. 
Disrrisution :—? Australia, c. fr. ! Polynesia; Tahiti (Wilkes, 
U.S. Explor. Exped. 1838-42), c. fr.!; (Banks)!; (Moseley, ‘‘Chal- 
lenger” Exped.), ¢. fr.!; (Ribourt, 1850, no. 161)!; “ Vallées 
séches de la région N. O. de l’ile, vers 800 métres, au Pinai, sur les 
trones du Meryta lanceolata (Nadeaud, no. 55). 
(24). Hypnum entum Mitt. 
In Journ. Linn. Soe. viii. 86 (1865) Mitten published a species 
under the name of Hypnum (Isothecium) lentum, with the following 
. 
description :—* Dioicum, foliis patentibus laxe imbricatis, in apici- 
singulis subequilongis in membrana ad dentium tertiam longitu- 
dinis exserta. .- coast of America (Dou Of ¢ 
moss only a few fragments have been seen. It appears to be 
about the size of the common forms of H. myurum, but of a loose 
spreading habit. At first it was supposed that this was only a 
genus Homalothecium (not to Hurhynchium, as Paris (Index Bryolog., 
Actes Soc. Li 
(Macoun) in Macoun, Canadian Musci, no. 292, in part” to Isothe- 
cium lentum Mitt. 
rout, in his Revision of the North American Eurhynchia (Bull. 
Torr. Bot. Club, xxv, 256 (1898) ), remarked, ‘‘ Hypnum lentum 
Mitt. appears to be a Scleropodium, S. lentum (Mitt.) ?” Subse- 
* 
