90 NORTH AMERICAN FLORA [Vorome 15 
18. Dicranella guadelupensis Mitt. Jour. Linn. Soc. 12: 37. 1869. 
Dicranella cespitans Besch. Ann. Sci. Nat. VI. 3: 183. 1876. 
Dicraneila homomalla Besch. Ann. Sci. Nat. VI. 3: ee 1876. 
Plants in compact yellowish-brown cushions; stems often branched, up to 4 cm. high, 
with the lower leaves erect-appressed, slightly curved when dry, the upper more or less curved- 
secund: stem-leaves about 2 mm. long, from a small, lanceolate base gradually narrowed to a 
nearly subulate, slightly grooved, mostly entire apex; costa 80-100 u wide at the base, about 
one third of the width of the leaf-base; blade gradually narrowed, extending two thirds up or 
sometimes almost to the apex but very narrow and indistinct above; leaf-cells throughout 
narrowly rectangular, with thickened colored walls; perichaetial leaves up to 4 mm. long, 
from a short, often obovate, clasping base abruptly narrowed to a slender, slightly grooved 
limb 3-4 times as long as the clasping base and denticulate at the apex; leaf-cells larger and 
less regularly rectangular than in the stem-leaves but not lax and hyaline toward the base: 
seta mostly erect, 10-12 mm. long: capsule short-oval, nodding, more or. less strumose; lid 
obliquely rostrate, a little shorter than the capsule, somewhat ribbed and blackish when dry: 
annulus broad; peristome-teeth irregular, scarcely 125 « high, vertically striate and papillose 
nearly throughout, unequally divided nearly to the base with the broader fork sometimes again 
divided: spores rough, up to 16 » in diameter. 
TYPE Locality: Guadeloupe. 
DistrrButrion: Guadeloupe and Martinique. 
19. Dicranella lagunaria (C. Miill.) Broth. in BE. & P. Nat. 
Pfl. 17: 309. 1901. 
Angstroemia lagunaria C. Mill. Bull. Herb. Boiss 5: 187. 1897. 
Microdus lagunarius Paris, Index Bryol. Suppl. 245. 1900. 
Plants in low, scarcely cohering, dark-green cushions; stems simple, 5-8 mm. high, with 
leaves rather crowded, nearly straight and erect-appressed or slightly spreading: stem-leaves 
from an ovate-lanceolate base gradually narrowed to a rather stout limb of about equal length 
with entire, recurved borders and a very narrowly obtuse or acutish, often slightly crenate 
apex; costa about 40 » wide and one fifth the width of the leaf-base, vanishing just below the 
apex of the leaf; leaf-cells with walls slightly thickened throughout, distinct above, rather 
broad and irregular, the median ones 6-8 » wide and 20—40 » long, the basal longer and more 
regularly rectangular; outer perichaetial leaves up to 3.5 mm. long with the base broader than 
in the-stem-leaves and more abruptly narrowed to a limb nearly twice the basal part in length, 
the inner leaves shorter with a clasping base rather more than one half the length of the leaf: 
seta yellow, erect, 5-6 mm. long: capsule 1.5 mm. long, oblong, erect, with exothecal cells 
narrow, irregular, and thick-walled; lid with a long-rostrate beak; annulus large; peristome-teeth 
red, striate below, about 1004 high and 35 u wide at base, not divided or irregularly cleft: 
spores coarsely papillose, (immature) more than 16 y in diameter. 
‘Tvps LOCALITY: Laguna del Pino, Guatemala. 
DistRIBUTION: Known only from the type locality. 
This species appears to differ from D. brachyblepharis chiefly in having the leaves closer together, 
shorter ‘and straighter, with perichaetial leaves with a relatively shorter point; better and more 
abundant material may show the two to be scarcely distinct. 
20. Dicranella brachyblepharis (C. Miill.) Mitt. Jour. Linn. 
Soc. 12: 34. 1869. 
Angstroemia brachyblepharis C. Miill. Syn. 1: 435.- 1848. 
Angstroemia microdonia C. Mill. Syn. 2: 606. 1851. 
Dicranella microdonta Mitt. Jour. Linn. Soc. 12: 34. 1869. 
Microdus Liebmanni Schimp.; Besch. Mém: Soc. Sci. Nat. Cherbourg 16: 162. 1872. 
Microdus ovatus Schimp.; Besch. Mém. Soc. Sci. Nat. Cherbourg 16: 162. 1872. 
Microdus Sartorii Schimp.; Besch. Mém. Soc. Sci. Nat. Cherbourg 16: 162. 1872. 
Plants in low, dark-green cushions; stems simple or somewhat branched, 5-10 mm. high, 
with leaves more or less curved-secund at the apex: stem-leaves often distant, ovate-lanceolate 
to lanceolate, not clasping, gradually narrowed to the entire apex, with the leaf-blade above 
very narrow, often indistinct; costa vanishing or percurrent, at the base well defined, 50-60 » 
