574 WILLIAMS: MOSSES FROM- TROPICAL AMERICA 
Cyclodictyon cubense sp. nov. 
Synoicous : plants forming low dull-green mats, the stems with 
complanate leaves 3 mm. wide; lateral leaves broadly ovate- 
oblong, up to 1.75 mm. long and 0.8 mm, wide, entire, acutely 
short-pointed with a pale border of one row of cells ; median and 
upper leaf-cells hexagonal, slightly elongated, up to 504 long 
and about 40 wide, toward base becoming somewhat narrower 
and longer ; costa forking at base, extending two thirds up, smooth 
on the back, apices not projecting ; perichaetial leaves entire, short 
and ovate or ovate-lanceolate, with erect, acute apex, the longer 
about 1 mm. long; seta smooth, 12 mm. high; capsule nodding 
or pendant, about 1 mm. long, with a conical rostrate lid a little 
shorter ; outer peristome-teeth red, cross-striate below, 65 4 wide 
at base, with median furrow 8 » wide and reaching to near base 
from about two thirds up; inner segments solid, nearly as-long as 
teeth, from a basilar membrane about one third height of teeth ; 
spores smooth, 12 # in diameter ; calyptra smooth. 
Finca’ Las Gracias, Yateras, Oriente, 500 meters, on decayed 
log, May 5, 1907, W. R. Maxon (4495). This species is near 
C. limbatum and C, Regnellii, but differs in the pale, entire border 
of leaf of only one row of cells and in the costa smooth on the 
back. : 
HAPLOCLADIUM MICROPHYLLUM (Sw.) Broth. (Leskea microphylla 
(Sw.) Mitt.) 
Jaguey, Yateras, Oriente, at base of trees, 420 meters, May, 
1907 (4353). | 
SEMATOPHYLLUM ADMIsTuM (Sull.) Mitt. 
Jaguey, Yateras, Oriente, 420 meters, May, 1907 (4344): 
MICROTHAMNIUM THELISTEGUM (C. M.) Mitt. 
Jaguey, Yateras, Oriente, 420 meters, May, 1907, (4355). 
