— 277 — 
known. -— Stony places r. Eur. r: »Francé, 2000 metr. a. s.»: 
Husnot 1. c. i pasti 8x 
: IV. Desmatodon (Bridel) Schimper, in part. 
À. Leaves with not excurrent costa, papillose. Tier 
20.D.arenaceus Sullivant et Lesquereux. — Desmatodon ‘S. L.; 
Sulliv. icon. m.; Didymodon Kindb. 
Leaves suboblong or oblong-lanceolate gen. obtuse, reflexed 
nearly all around. Capsule long cylindric; teeth short whitish 
. Gleft to middle; lid short thick. Stem 1— 2 c. m. high. Mon- 
. oecious or pseudo. monoecious. — Sandstone rocks r. Amer. 
. U. S.: Sullivant, com. C. Mueller; Demetrio, com. Cardot. Eur. 
»Norway»: Hagen. 
. B. Leaves with long-excurrent costa. 
. 22.D.plinthobius Sullivant et Lesquereux. — Desmatodon S. L.; 
Didymodon Kindb. 
Differs otherwise from tbe last: Lid of capsule narrower 
somewhat longer. Dioecious. — Limestone rocks r. Amer, 
U. 8: Ravenel, com. €. Mueller; Langlois, com. Cardot. 
. 22.D.neomexicanus Sull. et Lesq. — Desmatodon S. L.; Didy- 
modon Kindb. a8 
-= »Differs from the last in nearly entire peristomial teeth. 
. Monoecious. — Amer. r. U. S. Texas: Wright»: Lesq. et Jam. 
28 D.systylius Schimper. — Desmatodon Sch.; Didymodon 
Kindb. Í 
. "Leaves oblong-ingulate acute gen. short-acuminate, subpellu- . 
cid and nearly smooth, flat or near base indistinctly reflexed. 
Capsule cylindrie; teeth irregularly cleft yellowish or reddish; 
lid systylie; pedicel yellow or finally pale red. — Rocks r. 
_ Eur. in higher alp. region. Eur. Norway. Amer. N. Foundl.: 
 Waghorne (>D; systylioides» Ren. et Card.) Can. Manitoba: 
un. 
V. Eu-Didymodon. 1 
A. Leaves broadly acuminate or obtuse. Tufts not high. 
. A. Leaves papillose; costa not excurrent. Peristome well- 
evolute. 
24.D.tophaceus Bridel. —  Trichostomum Brid; Didymodon 
 Juratzka; D. Hendersoni Ren. et Card.; Barbula brevifolia Lindb. 
Leaves ovate-oblong or ovate, obtuse or acute us. concave 
_ With thick borders, more or less crisped. Capsule ovate-oblong 
or subeylindrie; pedicel red. Tufts olivaceous reddish-brown 
low us. very compact r. loose. — Rocks princ. calcareous 
and stonewalls. Eur. prine. in warmer districts, not r. 
