336 BULLETIN OF THE UNIVERSITY OF WISCONSIN. 



membrane; lid short apiculate: monoicous. Mac. Cat. 274. On rocks: 

 Vancouver Island. 



423. Cjlindrothecium Macounii (C. M. & Kindb.) Ren. & Card. Tufts 

 loose: stem sparingly divided, translucent; branches much compressed, 

 elongate, not attenuate, shining green above: leaves patent, concave, short, 

 ovate-lanceolate, attenuate to short subulate point, basal angles rounded; 

 margins scarcely recurved below, faintly denticulate all around; cells faintly 

 chlorophyllose, long sub-linear, lowest basal dilated, oblong, or the alar 

 often sub-quadrate; costa none or very short and double; perichsetial 

 leaves small, convolute or connivent, longer acuminate, more distinctly 

 denticulate at apex: dioicous. Entodon Macounii C. M. & Kindb., Mac. 

 Cat. 177. On earth: Ontario. 



424. Cylindrothecium aciculare (C. M. & Kindb.) Ren. & Card. 

 Tufts compact, brown-yellow or variegated with green: stem much di- 

 vided, very radiculose; branches very short, turgid, not attenuate: leaves 

 imbricate, with difficulty loosed from stem, scarcely open when moist, 

 finally golden yellow, from ovate oblong base suddenly narrowed to fine 

 aciculiform or subulate point, denticulate nearly all around; cells not 

 cholorophyllose, linear lanceolate or fusiform, alar not well defined; costa 

 generally wanting: barren. Entodon acicularis C. M. & Kindb., Mac. 

 Cat. 176.-Ottawa. 



425. Cylindrothecium expallens (C. M. & Kindb.) Ren. & Card. 

 Tufts loose, pale yellow: stems sparingly divided, radiculose at the base; 

 branches elongate, much compressed, not attenuate: leaves sub-distichous, 

 patent, short ovate -lanceolate, acute, concave, nearly entire, denticulate 

 only at apex, distinctly auriculate, not recurved at margins; cells not 

 chlorophyllose, long sub-linear, inner basal dilated sub-oblong; auricles 

 excavate, well defined, with large oval or roundish finally golden yellow 

 cells; costa none or double, sometimes reaching to middle: barren. En- 

 todon expallens C. M. & Kindb., Mac. Cat. 177. In boggy soil in woods: 

 Rocky Mountains. 



426. Climacinm dendroides Oregonense R. & C. Leaves narrower at 

 base: less serrate at apex, sometimes sub-entire. Bot. Gaz. 15: 59. 1890. 

 On ground and old logs: Oregon. 



427. Climacium Americanum Kindbergii Ren. & Card. A remark- 

 able form, distinct by shorter, more distant, loosely intricate leaves; cells 

 nearly equal, short, ovate, scarcely 1-2 times longer than broad. Bot. Gaz. 

 15: 59. 1890. Louisiana; Massachusetts. 



428. Orthothecium intricatnm Hartm. Stems 2-5 cm. long, delicate, 

 decumbent below, becoming erect, branching somewhat: tufts compact, 

 soft, olive or yellowish green: leaves erect, spreading, subsecund, narrowly 

 lanceolate, long-acuminate, entire, not plicate: capsule erect, oval or 



