114 Illinois State Laboratory of Natural History. 



all round-ovate, obscurely margined, emarginate-bilobed at the 

 apex \ \ their length, the sinus acute or somewhat obtuse, 

 the lobes strongly obtuse. (Sarcoscyplius Bolanderi Aust.) 



Hob. Exposed rocks, Mts, of Cal. (Bolander). 

 Bib.Torrey Bull. Ill, 9. 

 Exsic. Hep. Bor.-Amer. No. 4b. 



JJ Ar eolation moderate. 



2. N. adusta Aust. Stems very short, creeping at their 

 base; branches ascending, subclavate, terete, straight; leaves 

 ovate, closely imbricate, bifid at the apex, the margins pellucid 

 punctate. (Gymnomitrium adustum Nees, Acolea brevissima 

 Dumort., Sarcoscyphus adustus Aust.) 



Hub Alpine regions of White Mts., N. H. (Oakes, Austin). (Eu.) 

 Bib. Syn. Hep. p. 3 (sub Gymnomitrium) ; Hep. Europ. p. 123 (sub 

 Acolea). 



Exsic. Hep. Bor.-Amer. No. 4. 



3. N. emarginata B. Gr. ( ? ) Stems somewhat erect, 

 mostly dichotomous; leaves erect, approximate, embracing the 

 stem by their broad base, somewhat quadrate; lobes obtuse, the 

 foliage dark green or brownish purple. (Jungermania ennir- 

 ginata Ehrh., Marsupella emarginata Durnort., Sarcoscyplius 

 Ehrhartii Corda, S. emarginatus Boul.) 



// Leaves distant. 



Var. aquatica (Nees). Stems elongate somewhat float- 

 ing; leaves spreading, more scattered. 



Hob. On wet rocks chiefly in high mountain rivulets, N. Y., N. 

 Eng. (Eu.) 



Bib. Syn. Hep. p. 6 (sub Sarcoscypkus Ehrhartii) ; Hep. Europ. p. 126 

 (sub MarsupeUa). 



Delin.'Brit. Jung. t. 27; Ekart, t. VII, f. 56. 



Exsic. Hep. Bor.-Amer. No. 2, 3. 



4. N. sphacelata B. (jr. (?) Stems erect, somewhat 

 branched; leaves obovate-rotund, narrower at the base, embrac- 

 ing the stem, the apical sinus somewhat obtuse, the laciniae 

 rounded, sphacelate at the apex. (Jungermania sphacelata 

 Gieseke, Sarcoscyphus sphacelatus Nees ; Marsupella sphacelata 

 Dumort.) 



