THE MOSSES OF ALASKA 319 



Mons. Philibert describes the lid of this species as " convexe, peu 

 saillant et obtus." We have seen it mamillate. 



Subgenus Eubryum Lindb. 

 Bryum bimum Schreb. Spic. flor. lips., p. S3. 



From Muir Glacier (Trelease, 2460). New to Alaska. 

 A short form. 



Bryum pallescens Schleich. Crypt, exsicc. helv., no. 2S. 



From Indian Camp in Yakutat Bay (Brewer and Coe, 650) ; Dis- 

 enchantment Bay (Brewer and Coe, 633) ; Hubbard Glacier (Coville 

 and Kearney, 1070) ; Egg Island (Coville and Kearney, 10S5) ; Muir 

 Glacier (Trelease, 1791, 2420, 2435, 2436, 2439, 2457) ; Port Wells 

 (Trelease, 2264) ; Douglas Island (Trelease, 239S) ; Agattu Island 

 (U. S. S. Albatross Exped., 28, 32) ; St. Matthew Island (Trelease, 

 2145) ; St. Paul island (Coville and Kearney, 1S35 ; Trelease, 206S) ; 

 Plover Bay, Siberia (Trelease, 2060, 2096, 2535). 



Several forms. Some specimens are rather doubtful because of the 

 bad state of the capsules. 



BRYUM CYLINDRICO-ARCUATUM Philib. sp. nov. 



(PI. XVIII, fig. i"-?.) 



Monoicum (fide Philibert), viride, densiuscule cespitosum, radiculis 

 numerosis intertextum. Caulis erectus, 1-2 centim. altus, superne 

 ramos graciles emittens. Folia ad basin caulis et ramorum minuta, 

 remota, superiora majora, in comam congesta, circa 2 millim. longa, 

 I — 1.2 lata, sicca erecta subflexuosa, madida patentia patulave, e basi 

 paululum decurrente ovato- vel oblongo-lanceolata, late breviterque acu- 

 minata, mucronata, marginibus integris hand limbatis parce revolutis, 

 costa basi 80 11 crassa superne attenuata breviter excui'rente, rete den- 

 siusculo, cellulis inferioribus laxioribus rectangulis, 55—85 // longis, 22 

 latis, mediis oblongo-hexagonis, long. 28-56^4, lat. 14, superioribus 

 minoribus brevioribusque. Flos masculus terminalis, 25-30 antheridiis. 

 Capsula in pedicello rubello flexuoso, 2 centim. longo, apice curvato, 

 nutans vel pendula, anguste cylindrica, arcuata, longicollis, operculo 

 obtuse conico. Peristomii dentes longissimi, basi rubri. Endosto- 

 mium valde perfectum, ciliis appendiculatis. Spone leves, diam. i3/i. 



From Kodiak (Trelease, 21S6). 



Bryum argenteum Linn. Sp. plant., p. ii3o. 



From Bogoslof volcano (Coville and Kearney, 2614 in part) ; St. 

 Paul Island (Trelease, 15 13, 2090; J. M. Macoun). 



Number 2090 is a form near var. inajus Br. eur. 



