204 
serrate, often nearly entire: dioicous; perichaetium 2 mm. 
long, loosely sheathing ; inner leaves oblong-lanceolate, long fili- 
form-acuminate, serrate with a few distant teeth, costa slender or 
lacking. Sporophyte 1-1.5 cm. high; seta blood red, very rough ; 
eapsule brown, 1.5-2 mm. long, 2: I, ovoid, unsymmetric, hori- 
zontal; operculum conic-apiculate; annulus large, compound; 
teeth of peristome red-brown below ; segments a little shorter than 
the teeth, from a broad basal membrane; cilia 2, as long as the seg- 
ments, nodose; spores nearly smooth, about 10p, maturing in April. 
Type locality, on shaded ground, Calif. (Bolander); also 
collected at Olema, Marin Co. (Howe). 
Exsiccati.—Sull. & Lesq. Musc. Bor. Am. (Ed. 2) 502. 
DOUBTFUL AND IMPERFECTLY KNOWN SPECIES. 
33. BRACHYTHECUM MIRABUNDUM C. M. & Kindb. Macoun, Cat. 
Can. Pl. 6: 1904... 1892: 
* Tufts large, very laxly cohering, nearly without rhizoids, 
silky or yellowish-green, faintly shining. Stem elongate, irregu- 
larly divided or prolonged into sciuroid-curved, obtuse branches. 
Leaves loosely imbricate, crowded, when dry subrugose, when 
moist patent, short decurrent, indistinctly auriculate, faintly plicate, 
from the concave, ovate and gradually acuminate base long-cuspi- 
date; borders broadly recurved at least at one side of the nearly 
entire base to the involute and distinctly denticulate acumen ; cells 
pale, elongate, and narrow, the alar subquadrate and not much 
wider than the other basal ones, all sparingly chlorophyllose ; 
costa vanishing in the acumen. Capsule small, at the base in- 
distinctly gibbous, narrow, cylindric, and curved; lid elongate- 
conic; pedicel very short, 0.5—0.8 cm., very faintly muriculate. 
Perichetial leaves nerveless, longer filiform-cuspidate, irregularly 
sinuolate, the point patent or arcuate ; basal cells larger, rectangu- 
lar ; archegonia numerous, about 20. Monoicous." . : 
“This species is allied to Brachythecium rutabulum, differs prin- 
cipally in the minutely muriculate and short pedicel of the small, 
narrow capsule, also in the leaves." 
“On old logs in woods, Canaan Forks, Queen's Co., and Elm- 
wood, King's Co., N. B., July, 1888 (J. Moser)." 
