36 WILLIAMS: PANAMA MOSSES 
ovate-lanceolate, up to 1 mm. long, serrulate often for three fourths 
their length, faintly costate in lower half: seta 10 to I2 mm. 
long; capsule oval, scarcely 1 mm. long, the lid highly conical 
with short beak rather over one half capsule in length: annulus 
evidently wanting; outer teeth of peristome with highly projecting 
lamellae on inner side above the middle, the inner peristome a 
little shorter than outer, punctate, with lanceolate, keeled, solid 
segments and stout, solitary cilia; spores smooth, about I6u in 
diameter. 
Type Locaity: Taboga Island, Panama Bay. 
Collected on a shaded rock by M. A. Howe, Dec. 13, 1909. 
This species evidently belongs to the group under G of section 
2 of the genus as given by Brotherus in the Engler & Prantl, Natiir- 
liche Pflanzenfamilien. : 
CyCLODICTYON LIEBMANNI Schpr. Williams 1070 and 10735, 
Cana, 1200 to 1800 m., April, 1908. 
CALLICOSTELLA PALLIDA (C. M.) Jaeg. Williams 1064, Cana, 
1200 to 1800 m. 
LEPIDOPILUM BREVIPES Mitt. Walliams 1057, Cana, on trees 
at goo m., in fine fruit, April 20, 1908. This seems to be the only 
other collection of this species since the type was collected by 
Spruce on the Amazon at about the same altitude. 
LEPIDOPILUM POLYTRICHOIDES (Hedw.) Brid. Williams 1056, 
Cana at 200 m., in fine fruit, April 20, 1908. Growing in spray of © 
waterfall. 
LEPIDOPILUM SEMILAEVE Mitt. Williams 1054, Cana, on trees 
at 1200 to 1500 m. alt.; collected also above Penonomé, 10065, 
on branches; in fine fruit, March and April, 1908. 
HyporreryGium TaAmarisci (Sw.) Brid. Williams 1053, 
Cana, at 1800 m. 
TAXITHELIUM PLANUM (Brid.) Mitt. Howe,Gatun and Mt. 
Hope, Jan. 1910, 
TRICHOSTELIUM FLUVIALE (Mitt.) Jaeg. Howe, Mt. Hope. 
SEMATOPHYLLUM PUNGENS (Sw.) Mitt. Walhams 1071, 
above Penonomé at about 600 m. ele., and 1072, Cana at 1200 
to 1800 m. 
RHYNCHOSTEGIUM SCARIOSUM (Tayl.) Jaeg. Williams 1074, 
Cana, on bark at 1200 to 1800 m. 
New York BoTANICAL GARDEN, 
Bronx Park, New York CIty 
