114 Illinois State Lahoratory of Natural History. 



all rouud-ovate, obscurely margined, emargiiiate-l)ilobed at the 

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

 the lobes strongly obtuse. ( Sarcoscyj)Jms Bolanderi Aust.) 



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

 Bib.— Torrey 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 adustmn Nees, Acolea hreinssima 

 Dumort., Sarcoscyphns adust as Aust.) 



ifa&.— 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 emar- 

 ginata Ehrh., Marsupella emarginata Dumort., Sarcoscyphns 

 Ehrhartii Corda, S. emarginatus Boul.) 



ff Leaves distant. 



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

 ing; leaves spreading, more scattered. 



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

 Eng. (Ell.) 



Bib. — Syn. Hep. p. 6 (sub Sarcoscyphns Elirliartil) ; 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, Sarcoscyphics spjhacelatHS Nees^ Marsupella sphacelata 

 Dumort. ) 



