AT8 Best: REVISION OF THE 
appears that so good an authority as Wilson had discovered that 
the moss in question was not Leskea catenulata (Brid.). Subse- 
quently Mrs. Britton gave me some specimens of Brandegee’s 70. 
38 which I named Heterocladium heteropterum fallax Milde?. A 
careful study of Drummond’s 279 and Brandegee’s 38 made it 
obvious that we had to deal with an attenuated form of some species 
which under more favorable conditions grew better developed. 
13. LeskEA TEcTORUM (A. Braun) Lindb. Bot. Notis. 1865: 73- 
1865. 
Pterogonium tectorum A. Braun; Brid. Bryol. Univ. 2: 582. 
1827. 
Leskea Wollet Austin, Bull. Torrey Club, 5: 28. 1874. 
Pseudoleskea malacoclada C. M. & K.; Macoun, Cat. Can. PI. 
62°482:" 1892. 
Plants small, in rather dense subshining tufts or mats, deep 
green passing to reddish brown or black; stems prostrate, 2-5 
cm. long, radiculose, pinnately branched; branches ascending, 
short, simple, sometimes with flagellate branchlets, sharply pointed 
when dry ; central strand small, distinct: paraphyllia few, lanceo- 
late, sometimes none: lower stem-leaves broadly ovate, abruptly 
and narrowly acuminate, acumen spreading or recurved ; upper 
stem-leaves subdecurrent, ovate, abruptly acuminate, acumen 
shorter than the concave scarcely plicate body ; margins entire, 
plane or recurved on one or both sides below ; branch-leaves 
ovate, abruptly or gradually acuminate, margins plane, entire, costa 
short, simple, sometimes forking, rarely none ; leaf-cells.somewhat 
uniform, smooth, clear, thin-walled; median cells oval-oblong to 
oblong-rhomboidal, rounded at both ends, 9-12 wide, 1%4-3 
_ times ds long; alar transversely compressed in 5-7 rows; upper 
rhombic-oval or roundish : dioicous : [perichetial bracts erect, long- 
acuminate, the inner shorter, blunt-pointed and coarsely serrate at 
point : pedicel purple, 1.5 cm. long, curved at base ; capsule cy lindric, 
somewhat curved, reddish brown; urn 2.7 mm. long, 0.75 ™m™. 
wide ; exothecial cells rectangular, somewhat elongated ; annulus 
of two rows of cubical cells, separating from the operculum ; teeth 
lanceolate, yellowish, thinly margined, divisural line straight, 
inner surface lamellose ; endostomial band yellowish, one sixth the 
length of the teeth ; segments about as long as the teeth, narrow, 
constricted at the joints, keeled, not hiant ; cilia none or rudimen- 
tary; spores 10-14 4, brownish, smooth, maturing in August. ]* 
(PLATE 16, FIGS. 69-76.) 
ee 
* Abstracted from Limpricht’s Die Laubmoose, 2: 271; described from fruiting 
specimens collected by E. Ryan in Norway, the only fruiting locality known. 
—— 
