Itcpaticce of North America. 97 



10. C. albescens Dumort. Stems loosely creeping, 

 arcuate, fastigiately branching; leaves sub vertical, orbicular, 

 hemispheric-concave, bifid with a short sinus, the segments 

 equal, rather obtuse; involucral leaves uniform, mostly imbri- 

 cate; amphigastria ovate- or oblong-scutiform, obtuse, entire or 

 obtusely 1-2-toothed at the base; inner involucre oblong, 

 smooth, the mouth contracted, denticulate. (Jungermania 

 albescens Hook.) 



Hob. 111. (Wolf). Greenland (Vahl). (Eii.) 



Sib. Syn. Hep. p. 102 (sub Jungermania) ; Hep. Europ. p. 89. 



11. O. nematodes Gottsche. Texture lax ; leaves 

 rather long, distant; amphigastria small, 2-parted, the seg- 

 ments acute, their apices incurved; inner involucre on a short 

 ventral branch. 



Hab. Banks of ditches and in swamps, Fla., Southern Ga. (Austin). 

 BibTorrey Bull. VI, 302. 



XXVII. OOLEOCHILA DUMORT. 



Involucre oligophyllous, the leaves connate at the base. 

 Inner involucre terminal, elongate, cyljndric, longer than the 

 calyptra, the mouth compressed, bilabiate. Capsule quadri- 

 valved, coriaceous. Elaters deciduous, bispiral. Leaves entire. 

 Amphigastria present. Name from Gr. koleos, sheath, and 

 cheilos, lip, from the form of the inner involucre. 



1. C. Taylori Dumort. Stems erect, nearly simple, 

 radiculose; leaves convex, orbicular, entire, with large areolae; 

 amphigastria lanceolate-subulate, entire or subdentate; inner 

 involucre terminal, oval, the mouth compressed, bilabiate; 

 calyptra finally long exserted. (Jungermania Taylori Hook., 

 Leptoscyplms Taylori Mitt. ) 



Hob On wet rocks, high Mts. of N. Y. and N. Eng. (Sullivant, Aus- 

 tin), Greenland (Vahi). (Eu.) 



'JK&.Syn. Hep. p. 82 ; Hep. Europ. p. 106. 



Delin Brit. Jung. t. 57. 



Exsic Hep. Bor.-Amer. No. 24, 25 (?). 



