92 Illinois State Laboratory of Natural History. 



Hah. — Among mosses; common from N. J. and O. to the Gulf of 

 Mexico. (Eu.) 



Bib. — Syn. Hep. p. 148 (sub Sphagntecetis) ; Hep. Europ. p. 108. 

 DeZm.— Brit. Jung. t. 33 ; Ekart t. VI f. 43-48. 

 Exsic.—M.\isc. Alleghan. No. 228; Hep. Bor.-Amer. No. 61. 



2. O. Macouni (Aust). Stems stoloniferous from be- 

 neath, or innovate-branching, sparingly radiculose; leaves im- 

 bricate, oval-rotund, concave, appressed or obliquely somewhat 

 spreading, narrowly hyaline-margined; amphigastria somewhat 

 obsolete, ovate-lanceolate; gemmiferous branches succulent, 

 subclavate, the leaves thin, appressed, more distinctly striolate- 

 areolate; gemmae pale, oval; sporogony phase unknown. 

 (Sphagnoecetis Macouni Aust.) 



Rah. — On damp ground near Lake Superior, Can. {Macoun). 

 Bih.—Torvey Bull. Ill, p. 13. 



3. O. denudata Dumort. Stem procumbent, branch- 

 ing, flagelliferous, the branches ascending; leaves subv6rtical, 

 connivent, orbicular, entire, decurrent toward the apex. (0. 

 Huheneriana Rabenh. Hepat. Exsic. Europ. n. 16.) 



Hah. — On rotten wood, Ala. to O., N. Eng. and Canada. (Eu.) 



£16.— Hep. Europ. p. 108. 



Exsic. — Hep. Bor.-Amer. No. 61b. 



XXV. HARPANTHUS Nees. 



Fructification on a short lateral branch. Involucral leaves 

 smaller than those of the stem. Inner involucre distant from 

 the outer, fusiform, thickened below, the mouth 3-4-fid, the 

 lacinise unequal, entire. Capsule quadrivalved to the base. 

 Elaters bispiral. Leaves succubous, somewhat semivertical, 

 bidentate at the apex. Amphigastria entire or nearly so. Name 

 from Gr. arpa^ a sickle, and anthos, flower, from the form of 

 the involucre. 



1. H. SCutatus Spruce. Stems loosely creeping, ascend- 

 ing at the apex; leaves semivertical, suborbicular, emarginate- 

 bidentate, the sinus semilunar, the laciniae subequal, acute; 

 amphigastria ovate-triangular, acute, entire or 1-2-toothed at 



