143 
enlarged, rhomboidal, quadrate at the angles; stem leaves 
shorter and broader with more enlarged and hyaline basal cells : 
monoicous ; male branches borne on stem or branches; anther- 
idia oblong; paraphyses numerous and large; perigonial leaves 
oval to short-obleng, concave, the inner with a short, broad acu- 
mination : perichaetium about 2.5 mm. long; outer leaves sheath- 
ing at base with tips more or less spreading ; inner nearly erect, 
oblong, long acuminate with a few long spreading teeth at apex; 
leaf-cells linear above, gradually enlarged to rhomboidal or quad- 
rate at base. Sporophyte 10-25 mm. high; seta yellow; capsule 
brown, cylindric, 2—2.5 mm. long, 4:1; operculum long-conic, 
apiculate; mouth of capsule bordered by two or three rows of 
horizontally compressed cells, above these a row of enlarged cells 
without a cavity, closely simulating non-vesicular annulus cells; 
peristome about 2.5 mm. long; teeth linear-lanceolate, smooth 
and hyaline above, striolate and often thicker, brown and perforate 
below ; segments linear, nearly or quite as long as teeth; spores 
minutely roughened, 13-15 4, apparently maturing in spring, but 
data insufficient. 
Type locality, Louisiana (Drummond). 
On trees, rocks and logs, in woods. Southern United States 
east of the Mississippi, north to Tennessee and North Carolina; 
northern Mexico (Pringle). 
ILLUSTRATIONS.—Sull. Icon. Musc., AX. 94. 
ExsiccATI.—Drumm. Musc. Am. (S. States) 96 type; Sull. 
& Lesq. (Ed. 1) 264, (Ed. 2) 390. Aust. Musc. Appal. Suppl. 
538; Ren. & Card. Musc. Am. Sept. Exsic. gi. Macoun's Can. 
Musc. 436 is not this species. 
Distinguished at sight from Æ. cladorrjizans and E. compressus 
by its very wide flattened branches and yellow seta. 
6. ENTODON REPENS (Brid.) Grout, Bull. Torr. Club, 23: 227. 
1896. 
Bounties repens Brid. Musc. Recent. Suppl. 1: 131. 
1806. 
Platygyrium repens Br. & Sch. Bryol. Eur. fasc. 46-47. pl. 
458. 1851. 
