198 
branches 5-8 mm. long; branch leaves often somewhat secund, 
loosely erect-spreading, decurrent, lanceolate, 1—1.2 X 0.4—0.6 
mm., smaller toward the end of the branches, narrowly acute to 
acuminate, serrate, faintly or not at all plicate; costa extending 
nearly or quite to apex, often toothed on the back above and end- 
ing in a spine; median leaf-cells linear-oblong, 8—10: 1; quad- 
rate alar cells very numerous ; stem leaves ovate, long-acuminate 
monoicous ; perigonial leaves ovate, acuminate, serrulate at apex ; 
antheridia short oblong: perichaetium sheathing, about 2 mm. 
long; inner leaves oblong-lanceolate, rather abruptly filiform 
acuminate with acumination erect or spreading, serrulate at apex, 
nearly or quite ecostate. Sporophyte 2-3 cm. high; seta red- 
brown, rough; capsule horizontal, unsymmetric, short-ovoid to 
subglobose, about 2.5 mm. long, 2: 1; operculum conic-apicu- 
late; annulus of two rows of cells, persistent ; segments a little 
shorter than the teeth; cilia 2 or 3, long appendiculate in the 
American specimens ; spores nearly smooth, about 12, maturing 
in winter. 
Type locality European. 
ILLUSTRATIONS.—Br. & Sch. 1. c; Husnot, Musc. Gall. gl. 
94; Rab. Krypt. Fl. 4’: f. 372. 
Collected at Middle Arm, Bay of omm Newfoundland, 
February 11, 1896, by Rev. A. C. Waghorn 
Possesses characters intermediate between y Starkii and P. 
reflexum. From B. reflexum it is easily distinguished by its more 
robust habit, and from Z. Starki by the usually percurrent costa. 
The length of the costa varies considerably even in the same plant. 
Through the kindness of Professor Eug. Warming, of Copen- 
hagen, specimens of the Greenland moss referred to Brachythecium 
glaciale Br. & Sch. (Fl. Gr. p. 337) have been seen. They 
are sterile and are certainly not B. g/aciale. They resemble slender 
specimens of B. rutabulum more closely than they do any other 
American species. 
23. BRACHYTHECIUM STARKEI (Brid.) Br. & Sch. Bryol. Eur. fasc. 
52-54. pl. 547. 1853. 
Hypnum Starkei Brid. Musc. Rec. 27: 107. 1801. 
Eurhynchium Starkei Kindb. Can. Rec. Sci. 1894: 23. 1894. 
