Part 2, 1913] DICRANACEAE 147 
of not very large cells with thick stereid-bands above and below, the lower band enclosing one 
row of larger cells near the dorsal surface; alar cells usually forming large, red, inflated auricles, 
the cells just aboye thick-walled, pitted toward the costa, much smaller, narrower, not pitted 
toward the margin, higher up becoming more or less obliquely oval, not in straight rows, with 
thickened not pitted walls; inner perichaetial leaves a little longer than the stem-leaves, con- 
volute about one third up and narrowed to a slender denticulate subula: seta 12-16 mm. long, 
flexuous, nearly smooth above: capsule without lid slightly less than 2 mm. long, curved, 
furrowed when dry, not quite smooth at the base; lid obliquely rostrate, slightly more than 
one half as long as the capsule; peristome-teeth 50-60 » wide at the base: calyptra with base 
ciliate: spores rough, up to 14 » in diameter, 
TYPE LOCALITY: Cuba. 
DisTRiBuTIon: Cuba. 
30. Campylopus Harrisi (C. Miill.) Paris, Index Bryol. 
Suppl. 92. 1900. 
Dicranum Harrisi C. Miill. Bull. Herb. Boiss. 5: 553. 1897. 
Plants in loose tufts, green above, dark-brown or blackish within; stems simple or divided, 
somewhat tomentose below, rather uniformly leafy with the leaves at the apex more or less 
curved-secund: stem-leaves rather spreading, 7-10 mm. long, narrowly lanceolate, with usually 
a long-excurrent, terete, rough costa, the leaf blade, for some distance below its termination, 
only 1 or 2 cells wide either side of the costa and serrulate about one half down; costa about 
225 » wide just above the alar cells, ribbed and serrulate toward the apex, in cross-section show- 
ing stereid-bands above and below the median row of cells, the dorsal band enclosing in the leaf 
near the base a single row of larger cells, near the apex a double row; alar cells forming large, 
inflated, red to hyaline clusters, the cells just above mostly narrow, rectangular, with thickened, 
pitted walls except toward the margin of the leaf, upward becoming shorter, mostly rhomboidal 
and angular, in rows with somewhat equally thickened not pitted walls; inner perichaetial 
leaves narrowed to a slender stibula longer than the convolute base: seta about 12 mm. long, 
flexuous, distinctly roughened near the capsule: capsule obovate, curved, roughened at the 
base and slightly strumose, with an obliquely rostrate lid a little more than one half as long; 
peristome-teeth 60—70 » wide at the base: calyptra ciliate: spores rough, up to 14 w in diameter. 
‘TYPH LocALITy: Jamaica. . 
DistTRIBUTION: Blue Mountains, Jamaica. 
31. Campylopus tortuosus (Hampe) Paris, Index Byrol. 
Suppl. 98. 1900. 
Dicranum tortuosum Hampe, Linnaea 25: 361. 1853. 
Campylopus giganteus Sull. Proc. Am. Acad. 5: 278. 1861. 
Plants in deep, soft, loosely cohering tufts; stems robust, simple or dichotomous, up to 12 
em. high, somewhat tomentose to near the apex, rather equally foliate; leaves spreading- 
recurved below the apex, 12-18 mm. long, ovate-lanceolate, gradually long-subulate, the narrow 
leaf-blade extending to near the apex and serrulate in the upper half; costa about 400 » wide 
just above the alar cells, from about one fourth up covered on the back with numerous serrulate 
lamellae mostly two cells high, in cross-section near the middle of the leaf showing a median 
row of large cells, a stereid-band on the ventral side, and one row of medium-sized cells enclosed 
in a stereid-band on the dorsal side; alar cells forming a large, auriculate, hyaline or reddish 
group; lower leaf-cells in the margin very narrow, elongate, with much thickened walls not 
pitted, gradually larger toward the costa with thickened, pitted walls, higher up somewhat 
obliquely elongate, not in distinct rows, gradually merging into the small oval or oblong, not 
pitted or angular upper leaf-cells, the cell-walls somewhat thickened to the apex of the leaf. 
“ y'TypH LOCALITY: Porto Rico. 
DisTRIBUTION: Cuba; Haiti; Porto Rico. 
Exsicc.: Sull. Musci Cub. Wright. 38. 
C. lamellinervis (C. Miill:) Mitt. is very similar to the above, but seems always to have cell- 
walls thinner, the upper leaf-cells paler, shorter and more angular, and those just above the rec- 
tangular basal cells in more distinct rows. 
