92 Illinois State Laboratory of Natural History. 



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

 Mexico. (Eu.) 



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



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



Exsic. Muse. 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. 

 (Sphagncscetis Macouni Aust. ) 



Hob. On damp ground near Lake Superior, Can. (Macouri). 

 Bib Torrey Bull. Ill, p. 13. 



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

 ing, flagelliferous, the branches ascending; leaves subvertical, 

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

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



Hob. On rotten wood, Ala. to 0., N. Eng. and Canada. (Eu.) 



Sib. Hep. Europ. p. 108. 



Exsic. Hep. Bor.-Amer. No. 61 b. 



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 GT. 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 lacinise subequal, acute; 

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



