Mosses of Eastern Massachusetts. 179 
shade of woods, Danvers! Hingham! Plymouth! On garden 
paths, Salem ! 3 
$ Orrnorricuum. (Obs. Sometimes the inner peristome is 
wanting. 
| 1 Species with single peristome. 
O. saxatile. Brid. Sp. Musc. II. p. 9. — Meth. p. 110. 
— Bry. Univ. I. p. 274. . Vicinity of Salem! 
tt Species with double peristome. 
O. affine. (Schrad.) Muscol. Brit. p. 197. Br. Fl. II. p. 
94. A small species on bark of trees. Common. , 
O. Hutchinsic. (Smith.) Muscol. Brit. p. 131. tab. 21. 
Schwaégr. Suppl. II. p. 145. tab. 138. Br. Fl. II. p. 56. 
rocks, among ‘Anictangium ciliatum. Chelmsford ! 
O. strictum. Brid. Bry. Univ. I. p. 289. On rocks ; Ips- 
Wich, Oakes ! also Chelmsford ! 
— $$ Leaves or foliage crisped : Urota, Mohr. 
O. (Ulota) crispum. Hedw. Sp. Musc. p. 162. Brid. 
Meth. EI, = Bry. Univ. I. p. 299. Muscol. Brit. p. 133. 
hs 21. On trunks of white maple (Acer eriocarpum, M’x.) 
Hingham | also Ipswich, Oakes ! x : : 
DnvswoxprA, Hooker, in Drummondi Musci Americani. 
D. clavellata. (Dill) Drummondi Musci Am. No. 62. 
Jnonyms. Orthotrichum clavellatum. Hooker & Gre- 
ville, in Brewster's Edinburgh Journal of Science, Vol. I. p. 
114, tab. 4. Dill Musc. tab. 85, fig. 17. — Gymnostomum 
Prorepens. Hedw, Sp. Musc. p. 35, tab. 3. — Leiotheca 
a. Brid. Bry. Univ. I. p. 728. On trees, Waltham: 
also Ipswich, Oakes ! 
$ Brrum. With a single fruitstalk. 
B. androgynum, Hedw. Sp. Musc, p. 178. Dill. Musc. 
