( 253 ) 
Apolo, on wet rock, July 13, 1902 (2118). Near Aten, 1700 
meters, on rock, Aug. 16, 1902 (2082). Consata, 1200 
meters, on rock, June 12, 1902 (2119). 
SEMATOPHYLLUM GALIPENSE (C. M.) Mitt. 
San José to Apolo trail, Feb. 12, 1902, on rock (2105). 
Near San José, 515 meters, on rock, Jan. 31, 1902 (2104), 
Tumupasa, 430 meters, on rock, Jan. 10, 1g02 (2098). 
Tumupasa, on rock, Jan. 4, 1902 (2114). Apolo, on rock, 
1500 meters, Feb. 14, 1902 (2106). Tumupasa, on rock, 
Dec. 8, 1901 (2075). 
SEMATOPHYLLUM CUCULATIFOLIUM (Hampe) Mitt. 
Lower Rio Cocos, g0o meters, March 25, 1902 (2101). 
Near Aten, 1100 meters, on wet rock, July 26, 1902 (2117). 
Apolo, 1500 meters, on tree, March 1, 1902 (2111). 
Sematophyllum tenuicarpum sp. nov. 
Monoicous: forming low, yellowish-green mats with creep- 
ing stems and rather short, more or less erect and curved 
branches; leaves somewhat spreading all around stem, either 
wet or dry; stem-leaves ovate-lanceolate, entire, somewhat 
recurved on the margin, 1.3 mm. long, with cells mostly 
narrowly linear, but becoming more or less rhomboidal in the 
apex and with 4 or § large, yellow, inflated cells at basal 
angles ; terminal branch-leaves a little shorter than stem-leaves 
with broader and minutely serrulate apex; inner eine ass 
leaves as long as stem-leaves, lanceolate, entire or minutely 
serrulate at the apex; seta 1 cm. high; capsule nearly 
straight and erect, cylindrical- oblong, without lid, 1mm. high 
by .25 mm. in diameter, with a slender beaked lid about 75 
mm.or more in length; exothecal cells with rather thin, 
somewhat sinuous walls, not greatly thickened at the angles 
and somewhat irregularly thickened at the sides, near middle 
of capsule about 15 » wide by 28y long; peristome double, 
outer teeth pale, finely papillose with rather broad apex and 
hyaline border; inner segments narrow, solid, papillose, 
slightly exceeding the teeth in length, with short or no cilia 
between ; smooth | spores up to 17 # in diameter. 
Tumupasa, 430 meters, on bark, Dec. 11, Igor (2066). 
This species is somewhat like both S. chrysostegum and 
agnatum, but chrysostegum has a much longer pointed leaf 
