330 Williams: Peruvian mosses 



A few stems with one capsule were found mixed in with 

 Breiitelia tomentosa. This is evidently the same species as that 

 collected by Weddell in Peru and named, apparently in manu- 

 script only, Bartramia nutans by Montagne. It is also the same 

 as my Bolivian collection. No. 2825, referred to Breutelia nutans 

 (Mont.). 

 Breutelia tomentosa (Sw.) Schimp. 



San Miguel, Urubamba Valley, about 1,800 m.. May, 1915, 

 Cook & Gilbert g88; Lucumayo Valley, 1,800-3,600 m., June, 

 1 91 5, Cook ef Gilbert 1320. 

 Pogonatum campylocarpum C. Miill. 



Lucumayo Valley, 1,800-3,600 m., June, 1915, Cook & Gil- 

 bert 1322. 

 Pogonatum polycarpum (Schimp.) Broth. 



Araranca, south side of La Roya Pass, about 4,100 m., April, 

 1915, Cook & Gilbert lyy and 182. 

 Polytrichum antillarum Rich. 



Torontoy, Urubamba Valley, about 2,400 m., June, 1915, 

 Cook &" Gilbert 1194; Lucumayo Valley, 1,800-3,600 m., on wet 

 earth, June, 1915, Cook & Gilbert 1318. 

 Hedwigia albicans (Web.) Lindb. 



Temple of Viracocha, near Tinta, about 3,500 m., April, 1915, 

 Cook Gf Gilbert 204; Ollantaytambo, about 3,000 m., May, 1915, 

 Cook & Gilbert 501. 



Hedwigidium imberbe (Sm.) B.S.G. 



Urubamba, on rocks, 2,900 m., July, 191 1, Foote 18; Ollantay- 

 tambo, 2,750 m., July, 191 1, Foote 19; Temple of Viracocha, near 

 Tinta, about 3,500 m., April, 1915, Cook & Gilbert 204a. 



Braunia canescens Schimp. 



Near Galea, on rock, April, 1915, Cook & Gilbert 245; Ollan- 

 taytambo, about 3,000 m., April and May, 191 5, Cook & Gilbert 

 473 y 502, and 503. This species has been considered scarcely 

 distinct from B. cirrifolia (Wils.) Jaeg., but it seems to me to be a 

 rather smaller species with more closely imbricate leaves. The 

 leaves also, below the apex of the stem, are broader in the upper 

 part, often slightly obovate, and more abruptly narrowed to the 

 pale apex of blade and hair point. B. cirrifolia kas leaves rather 



