— 77 — 
12. Sphagnum capillaceum (Weiss) Schrank, Baier. (S. acutifolium Ehrh.). 
Thuya-Larix-Picea bog, along outlet of depression, Silver Islet, Thunder 
Cape, June 23, 1912 ( 348 ) 0 . E. Jennings & R. H. Daily; Wooded talus slope 
of mountain south of Nipigon, July 2, 1912, O. E. Jennings & R. H. Daily; In 
hollow on rounded bare rock knob near Lake Helen Mission, Nipigon, July 8, 
1912. O. E. Jennings & R. H. Daily ( 818 )'; Dense spruce-sphagnum muskeg 
at Pays Plat, July 15, 1912 ( 1981 ) O. E. Jennings & R. H. Daily; Steep granite 
slope, side south Jackfish Island, Lake Superior, July 19, 1912 ( 1264 ) O. E. 
Jennings & R. H. Daily; Dense spruce-sphagnum muskeg around Ruby Lake, 
four miles southeast of Nipigon, Aug. 25, 1912 (. 2269 ) O. E. & G. K. Jennings & 
R. H. Daily; Boggy woods towards top of Porphyry Island, Lake Superior, 
July 23, 1913 ( 3634 ); Edwards Island, forming a large part of ground cover 
together with black spruce, July 25, 1913 (, 3741 ); Spruce woods on top of knob, 
Little Fluor Island, Aug. 3, 1913 ( 3840 ); Under spruce-birch cover on islet near 
Fluor Island, Aug. 4, 1913 (, 3924 ); Forms mounds on bare bluff above Fluor 
Island channel, Aug. 10, 1913 ( 4043 , 4043a); Forming mounds in spruce muskeg 
east of Loon Lake, Sept. 9, 1913 {5238, 5239, 5240 ); Boggy woods east of R. R., 
Loon Lake, Sept. 9, 1913 (5249); Wet meadow at edge of muskeg in old lake 
basin, two miles east of Loon, Sept. 14, 1913 (338/); Muskeg on glacial till north 
of Ombabika Post, Aug. 9, 1914 {6726) and Aug. 10 (6790, 6793, 6796b, 6799 ); 
Alder thicket along stream in burn, Ombabika Post, Aug. 11, 1913 ( 6801 ), near 
shore of Ombabika. Bay, Aug. 13 (6898b); Floor of great spruce muskeg at head 
of Ombabika Bay, Lake Nipigon, Aug. 14, 1914 (6911, 6914); Floor of spruce 
woods along portage on North Ombabika Peninsula, Aug. 19, 1914 (7184, 7184b); 
Open bog at west edge of Graham, Sept. 7, 1914 (7372, 7373, 7579); Along lake 
shore at Sioux Lookout, Sept. 3, 1914 ( 7315 )• 
Recorded from Europe, Asia, and South America, this species occurs in 
North America from Greenland and Labrador to Virginia and central Penn- 
sylvania; also Wisconsin and Minnesota; Colorado; and from Washington to 
Alaska. This was collected more often than any other species during our expe- 
ditions and can safely be said to be the most common sphagnum in that part of 
Ontario, at least. In many of the mature black spruce-sphagnum muskegs 
this species really forms the floor, often nearly pure over considerable patches, 
and sometimes forming also rather distinct mounds. In the extensive and 
beautiful example of a well-developed black spruce muskeg covering the gentle 
slope at the head of Ombabika Bay, at the north end of Lake Nipigon, the spruces 
reach a fair size, forming a dense and rather dark forest cover, while the floor 
for acres and acres is a deep bed of billowy sphagnum into which one sinks nearly 
to the knees, or, perhaps, breaks through a twiggy mat to “bark his shins” on 
some buried tree trunk. The real floor of this forest consists of Sphagnum 
capillaceum, but there is more or less of a mixture of S. Girgensohnii and S. 
magellanicum, while the highest mounds are composed of S. Wulfianum. See 
Pl. XXVII, fig. 4. 
Carnegie Museum, Pittsburgh, Pennsylvania 
