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NEW OR UNRECORDED MOSSES OF NORTH AMERICA. 
By J. Cardot and I. Theriot, 
Translated and condensed from The Botanical Gazette, May, 1904. 
DESCRIPTIONS OF NEW SPECIES GIVEN IN FULL. 
Barbula Bakeri Card. & Ther. 
Dioicous, loosely caespitose, olivaceous or lurid green, 3-8 mm. high. 
Leaves erect and contorted or crispate when dry, patulous-squarrose when 
moist, 1. 4-1. 5 mm. by o. 6-0.7 mm., rather long acuminate from an ovate 
base carinate, margins entire, strongly revolute from base to apex, smooth 
or scarcely papillose, costa percurrent, 60 /* thick at base, cells subuniform, 
quadrate-rotund, 6 /* wide, a few at base near costa short-rectangular, 9 /* 
long. Perichaetial leaves similar to the stem leaves, yet a little more longly 
acuminate. Seta reddish, about 10 mm. long. Capsule erect, oblong or 
subcylindric, 2.5-3 mm. long together with the conic-rostrate operculum. 
Calyptra covering the upper half of the capsule. Annulus distinct, persist- 
ant. Peristome purple, 0.6 mm. high, teeth semi-twisted. Spores smooth, 
pale, 8-9/* in diameter. 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 Co., on bowlder (C. F. Baker, 1902); Soldier’s Home, Los 
Angeles Co. (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 
margins more broadly revolute, and by its shorter, slightly twisted 
peristome. From B. viresce 7 is 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. 
Grimmia cognata Card. & Ther. 
Apparently dioicous, rather densely caespitose, yellowish green above, 
fuscous below. Stems usually denuded at base, ascending or arcuate, spar- 
ingly branched, 2-5 cm. long. Leaves erect-flexuous when dry, erect-open 
when moist, 2. 5-3. 5 mm. by 0.7 mm., lanceolate, gradually and longly 
acuminate, carinate, extending into an entire hyaline hair point, margins 
somewhat revolute on one side, areolation opaque, lower cells linear, 30-40/* 
by 6-8/* with walls strongly sinuate and incrassate, the other cells roundish- 
quadrate or short rectangular, bistratose in the upper portion. Other char- 
acters unknown. Plate XIX. 
Colorado: Along the Cogwheel Railway to Pike’s Peak, alt. 2100-3000121. 
(J. M. Holzinger, 1896). 
Closely allied to D. trichofthyllci Grev. , of which it may be considered 
as a subspecies; differing from it in its more robust size, recalling that of 
G. elatior Br. Eur. , its stems naked below, and the basal areolation with 
much thicker and more sinuate walls. 
To be continued. 
