Heimticw of North America. 115 



Hah. — Wet rocks, Mts. of N. Eng. to N. J. and soutlnvard ; also 

 Greenland. (Eu.) 



Bib. — Syn. Hep. p. 7 ; Hep. Europ. p. 127 (sub Marmpella). 



Delin.—Ekait, t. XI, I 91. 



Exsic— 'Muse. AUeghan. No. 216; Hep. Bor.-Amer. No. 3b. 



** Ampltiijastria trianf/ular-subulate. 



5. N. Lescurii (Aust.) Stems prostrate, copiously ra- 

 diciilose beneath as well as the usually emarginate-bilobed 

 leaves; areolation lax; aniphigastria entire or the uppermost 

 subdentate. ( Ah'cularia Leacurii Aust.) 



Hah. — Wet rocks, Tallulah Falls, Ga. (Lesquereux, 1850). 

 ^i6.— Torrey Bull. VI, IS. 

 Exsic. — Hep. Bor.-Amer. No. 5. 



XXXII. CESIA B. Gr. 



Involucral leaves numerous, imbricate. Inner involucre 

 wanting. Calyptra immersed in the involucral leaves. Cap- 

 sule quadrivalved, coriaceous. Elaters bispiral, deciduous. 

 Leaves closely imbricate. Aniphigastria wanting. (Acolea 

 Dumort.) 



1. C. concinnata B. Gr. Stems intricately branching, 

 thickened at the apex; leaves closely imbricate, ovate, the apex 

 bifid. Avith a narrow scarious margin. (Jinigerinanla roncin- 

 >i<tf(( Lightf., (ri/ninoi)iitriinn coticinnatmn Corda, Acolea coticui- 

 nata Dumort.) 



Ifa6.— Alpine regions of White Mts., N. H. (Oakes). (Eu.) 

 Bib.—^ya. Hep. p. 3 (sub Gipnnomitrium) ; Hep. Europ. p. 122 (sub 

 Acolea). 



Deliri.— Brit. Jung. t. 3 ; Ekart, t. VIII, f. (J3. 

 E.csic. — Hop. Bor.-Amer. No. 1. 



