— 6o — - 
As previously stated in the Bryologist, specimens of Hypnum recur- 
vans have been found growing on wet cushions of Leucobryujn, where the 
leaves were scarcely recurved and distinctly “ squarroseR It is evident 
that Leskea squarrosa represents a form of Leskea recurvans with more 
spreading leaves, just as Hypnum laxepatulum is a similar form of Semato 
phyllum delicatulum. These differences are not of specific importance, for 
the leaves may be flat and spreading on the younger branches and strongly 
recurved on the older ones of the same tuft, as seen in the type specimens. 
The leaves are long-pointed and sharply serrate at apex and the alar cells 
yellow and vesicular as in all the forms and varieties of this species. 
Sematophyllum recurvans (Rich.) E. G. B. Bryologist 5:65. 1902. 
Leskea recurvans (Rich.) Mx. FI. Bor. Am. 2:311. 1803. 
Hypnum recurvans Beauv. Prod. Aetheog. 73. 1803. 
Raphidostegium recurvans Jaeg. & Sauerb. Adumb. 400. 1877. 
Plants in glossy yellowish-green mats, pulvinate, with irregularly pin- 
nate, creeping stems on the circumference, branches simple or divided, up to 
10 or 15 mm. long, erect or decumbent, crowded with circinate leaves, 
recurved on both sides of the stem, with few small paraphyllia, leaves 1 mm. 
long, acuminate, serrate above the middle, the margins slightly revolute, 
basal cells yellow, porose, alar cells larger, rounded and inflated, upper 
linear-vermicular, perichaetial leaves longer, more acuminate and more 
sharply serrate at apex. Dioicous, the antheridia in small, leafy axillary 
buds, antheridia with few paraphyses. Seta glossy, red-brown. 10-30 mm. 
long, capsule contracted below the mouth when dry; lid conic-rostrate, the 
beak varying from once to twice the length of the conical part of the lid ; 
walls much thickened and brown, neck stomatose; peristome double, yellow, 
pajer than the walls ; teeth striate at base, papillose at apex, the inner face 
deeply lamellate; endostome shorter with one or two slender papillose cilia; 
spores smooth, .010-015 mm. maturing in summer and autumn. 
Type locality: Mts. of Carolina on wet rotten logs, Michaux. 
Type specimen preserved in Herb. Richard, the property of M. 
Ferdinand Camus, at Paris. 
Exsiccatae: Drummond N. Am. Mosses No. 196 in part 1828. Sull. 
Musci All. No. 18. 1848. Sull. & Lesqx. Musci Bor. Am. No. 30i-30ib. 
1856. Nos. 446 and 447 in part 1865. Austin Musci App. Nos. 340-341. 
1870-7. Macoun Canadian Mosses No. 229; Small Mosses S. U. S. No. 14. 
Grout N. Am. Musci Pleu. No. 1, agrees very well with the type of 
Leska recurvans. 
Distribution: N. B., Nfd., Quebec, Ont., to Manitoba. Eastern U. S. 
from Maine to N. C. Central States from Minnesota to Missouri. 
Var. squarrosa (Brid. ) Britton, n. var. 
Leskea squarrosa Rich. Michx. Flor. Bor. Am. 2:312. 1803. 
Plants in thin mats. Stems creeping, bright yellow and glossy or darker 
green, the leaves crowded, more flattened and spreading on the stems and 
less strongly recurved, though variable on the same plant; pedicels shorter 
often only 10 mm. long: capsule smaller, 1 mm. 
