368 BOTANICAL GAZETTE - [May 
carinata, marginibus integris e basi usque apicem versus valde 
revolutis, costa percurrente, basi 60 crassa, rete laevi vel vix 
papilloso, cellulis subuniformibus, quadrato-rotundatis, 6p latis, 
nonnullis ad basin folii juxta costam breviter rectangulis, 94 
longis. Folia perichaetialia caulinis subsimilia, tamen paululum, 
longius acuminata. Capsula in pedicello rubello, circa 10™™ 
longo, erecta, oblonga 'subcylindricave, unacum operculo conico- 
rostrato 2.5-3™" longa. Calyptra dimidiam partem capsulae 
obtegens. Annulus distinctus, persistens. Peristomium pur- 
pureum, 0.6™" altum, dentibus semicontortis. Sporae laeves, 
pallidae, diam. 8-gp. Plate XVIII. 
California: Stanford University, on stones bordering flower beds (C.F 
Baker, 1901); foothills near Palo Alto, on ground (C. F. Baker, 1902); Alma, 
Santa Clara county, on bowlder (C. F. Baker, 1902); Soldier’s Home, Los 
Angeles county (Dr. Hasse, 1902; herb. C. F. Baker). 
A species belonging to the perplexing group of B. fallax Hedw., differ- 
ing from this species by its smooth or very slightly papillose leaves with mar- 
gins more broadly revolute, and by its shorter, slightly twisted peristome. 
From B. virescens Lesq. it is distinguishable by its shorter leaves, broader at 
base, its almost uniform areolation, and its lower cells small, quadrate, 
chlorophyllose, with thinner walls. 
BARBULA HUMILIS Hedw., Sp. Musc. 116, tab. xxv, figs. 1-4. 
Missouri: Swan, on rocks (B. F. Bush, 1899). 
A reduced form of B. caesfitosa Schw, (See: Cardot, Revision des types 
d’ Hedwig et de Schwaegrichen, in Bull. Herb. Boiss. 7: 304. 1899). 
Grimmia cognata Card. & Thér., sp. nova.—Verisimiliter 
dioica, densiuscules cespitosa, superne lutescenti-viridis, inferne 
fusca. Caulis pro more basi longe denudatus, ascendens arcua- 
tusve, parce ramosus, 2-5 longus. Folia sicca erecto-flexuosa, 
madida erecto-patentia, 2.5~3.5"” longa, 0.7™™ lata, lanceolata, 
sensim et longe acuminata, carinata, pilo hyalino integro prae- 
dita, marginibus uno latere parce revolutis, rete opaco, cellulis 
inferioribus linearibus, 30-40 longis, 6-84 latis, parietibus 
valde incrassatis et sinuosis, caeteris quadrato-rotundatis vel 
breviter rectangulis, in dimidio superiore bistratosis. Caetera 
ignota. Plate XIX. 
Colorado: along the Cogwheel Railway to Pike’s Peak, alt, 2100-3000" 
(J. M. Holzinger, 1896). 
