136 
foliate, not radiculose above, without paraphyllia. _ Leaves’ pluri- 
seriate, imbricate, entire or slightly serrate at apex, smooth, con- 
cave, ecostate or with a very short double costa; leaf-cells linear, 
enlarged and quadrate at the basal angles. Male branches gem- 
miform, borne on the stem. Sporophyte with the seta long, smooth, 
twisted to the right. Calyptra cucullate. Capsule cylindric, erect 
and symmetric or sometimes slightly curved. Operculum conic 
to conic-rostrate. Columella persistent. Annulus large and con- 
spicuous (aborted and indistinct in E. Drummond), remaining at- 
tached after dehiscence and falling away in fragments with age. 
Peristome double, inserted below the moüth of the capsule; teeth 
subulate to linear-lanceolate, strongly articulate; segments nar- 
rowly linear, carinate, attached to a very narrow basal membrane 
(usually free in Æ. repens ; attached to teeth as a hyaline margin in 
E. brevisetum). Spores brown to brownish green, minutely rough- 
ened. 
The leaves of many species of this genus are much more 
variable than the peristome, consequently the distinctions are based 
upon peristome characters wherever possible. 
Leaves obtuse; quadrate alar cells in 2 or 3 layers. 7. £. orthocarpus. 
Leaves acute or acuminate ; quadrate alar cells in one layer. 
: gradually narrowly acuminate; segments of endostome peering to the 
8. 
eeth. 
aes acute to apiculate ; segments free. 
Teeth conspicuously hyaline margined. 6. 
E. repens. 
T sr not kam pe yas margined. 
one ; seta yellow. . E. Drummondit. 
Annulus BrE of ia cells ; seta red. 2. E. seductrix. 
Annulus large, of large cells. 
'Teeth uniformly papillose-roughened. . E. compressus. 
Teeth conspicuously striolate above ; leaves serrate. 
4. E. Sullivantii. 
Teeth not conspicuously striolate ; leaves nearly entire. 
E. cladorrhizans. 
. ENTODON CLADORRHIZANS (Hedw.) C. Muell. Linnaea, 18: 707. 
: 1844. Also Bot. Zeit. 1844. 
Neckera cladorrhizans Hedw. Sp. Musc. 207. pl. 47.- 1801. 
Cylindrothecium cladorrhizans Schimp. Syn. Ed. 1, 514. 1860. 
Entodon Transylvanicus Demet. Hedwigia, 23: 81. 1884. 
-  &ntodon minutipes Kindb. Can. Rec. Sci. 1894: 21. 1894. 
