304 CARDOT AND THERIOT [344] 



erecta, aplce tantum paululum patentia, circa 1.4 millim. longa, 0.6 

 lata, diversiformia, inferiora ovato-oblonga vel subdeltoidea, acumi- 

 nata, subobtusa, superiora elliptica, acumine latiore et obtusiore, 

 ramea ovata, rotundato-obtusa, omnia plicatula, marginibus planis 

 sinuolatis, costa tenui, ad ^ vel ultra producta, basi 40-50 /jt crassa, 

 cellulis alaribus magnis, laxis, hyalinis, auriculas inflatas pulchre dis- 

 tinctas efformantibus, mediis anguste llnearibus, flexuosis, extremitati- 

 bus obtusis, 40-60 /i longis, 5-6 latis, apicalibus brevibus, ovatis vel 

 subhexagonis. Ca^tera ignota. 



From Yukon River (W. H. Dall, in 1867). 



This species resembles both H. stramineum Dicks. anJ H. fseudo- 

 stramineum C. Miill. ; but it is w^ith the latter that it has the closest 

 affinity. It differs from it by its leaves being shorter, subdeltoid, vv^ith 

 a costa thicker (40—50^1 instead of 30-40), longer, usually exceeding 

 the ^, and finally by the firm areolation, formed of flexuous cells, 

 rather obtuse (not truncate) at the ends, v^ith thick w^alls, and re- 

 sembling those of Hygrohypnum. 



The comparative figures of H. pseudo-stramineutn given on Plate 

 XXIII, w^ere supplied to us by Mons. Renauld, who drew them from an 

 original collected by C. Miiller at Halle-am-Saale. 



Mr. Kindberg has described a H. pseudo-cotnplexum Kindb. from Alaska, of 

 which we have not seen anj specimen. H. alaskanum Lesq. & Jam. is also 

 unknown to us. 



Hylocomium splendens Br. eur. fasc, 49-52, p. 5, pi. i. 



From Alaska, sine loco (W. H. Evans, in 1897) ; Orca (Setchell, 

 1 21 2; Trelease, 2050); Muir Glacier (Coville and Kearney, 673); 

 Yakutat Bay (Trelease, 2049) ; Disenchantment Bay (Trelease, 

 2047) ; Head of Russell Fiord (Coville and Kearney, 957) ; New Met- 

 lakatla (Trelease, 2041); Farragut Bay (Trelease, 2042); Wrangell 

 (Canby, 450) ; Karluk (Brewer and Coe, 6^6) ; Koyukuk River (F. 

 C. Schrader, in 1899); Sitka (Setchell, 1260; Trelease, 2045, 2046; 

 W. G. Wright, 1605); Kodiak (L. J. Cole; Trelease, 2029, 2052, 

 2053) ; Wood Island (Brewer and Coe, 663). 



Hylocomium splendens gracilius Boul. Muse, de la France, p. 10. 

 H. alaskanum Kindb. in Mac. Cat. Can. pi., vi, Musci, p. 248. 



From Muir Glacier (Trelease, 2043, 2044) ; Kodiak (Trelease, 

 2051); Unalaska (J. M. Macoun) ; Popof Island (Saunders, 2038); 

 Hall Island (Trelease, 1989 in part, 2055, 2056). 



This variety is Hylocomium alaskanum of Kindberg, but we 

 much doubt whether it is the true Hypnum alaskanum of Lesquereux 



