114 Illinois State Laboratory of Natural History. 



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

 apex ;| — \ their length, the sinus acute or somewhat obtuse, 

 the lobes strongly obtuse. (Sarcoscyphus Bolanderi Aust.) 



Hah. — P^xposed rocks, Mts, of Cal. (Bolander). 

 Bib.— Torrej Bull. Ill, 9. 

 Exsic. — Hep. Bor.-Amer. No. 4b. 



XX Areolation 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 hrevissima 

 Duniort., Sarcoscyphus adnstus Aust.) 



Hah. — 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. {Jungennania emar- 

 ginata Ehrh., Marsapella emarginata Dumort., Sarcoscyphus 

 Ehrhartii Corda, S. emarginatus Boul.) 



i'f Leaves distant. 



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

 ing; leaves spreading, more scattered. 



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

 Eng. (Eu.) 



Bib. — Syn. Hep. p. 6 (sub Sarcoscyphus 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. Gr. (?) 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.) 



