86 Illinois State Laboratory of Natural History. 



Hob. — So. States {Snllivant, Ravenel, Mohr.), Delaware Water Gap, 

 N. J. (A^iMin). 



Bib.— Torrey Bull. VI, 18. 

 Exsic. — Hep. Bor.-Amer. No. 74b. 



XIX. GEOCALYX Nees. 



Inner involucre wanting. Outer involucre oblong, saccate, 

 truncate, fleshy^ naked, attached by one side of its mouth to 

 the stem, pendent. Calyptra membranous, partly connate 

 with the involucre. Capsule oblong. Elaters bispiral, decid- 

 uous. Antheridia on spike-like, lateral branches, in the axils of 

 small perigonial leaves. Name from Gr, gea, earth, and kaJux, 

 a cup, from the subterranean involucre. 



1. G. graveolens Nees. Leaves ovate-quadrate, 2- 

 toothed, light-green; amphigastria oval-lanceolate, 2-cleft to 

 the middle, the segments linear; involucre subterranean. 

 ( Jungermania graveolens Schrad. ) 



Hah. — On the ground in wet places ; not common. (Eu.) 

 Bih.—^yn. Hep. p. 195; Hep. Europ. p. 118. 

 DfZin.— Ekart, t. IX, f. 67; Sulliv. Mosses U. S., t. VII. 

 Exdc. — Hep. Bor.-Amer. No. 71. 



XX. OHILOSOYPHUS Corda. 



Sporogonium terminal on a short lateral branch. Involu- 

 cral leaves 2-6^ different from those of the stem, smaller. In- 

 ner involucre usually shorty deeply 2-3-cleft. Calyptra globose, 

 oblong or subclavate^ slightly chartaceous. . Capsule oval, quad- 

 rivalved to the base. Elaters bispiral, deciduous. Perigonial 

 leaves like those of the stem, concealing the antheridia in their 

 saccate bases. Leaves decurrent on the back of the stem. 

 Amphigastria usually deeply 2-cleft, the root hairs proceeding 

 only from their bases. Name from Gr. cheilos^ lip, and shiphos, 

 bowl, from the form of the inner involucre. 



* Amphigastria 4-partecl ; involncml leaves 2. 



