52 Illinois State Laboratory of Natural History. 



Inner involucre distant from the outer, fusiform, the 

 mouth 3-5-fid, the laciniae unequal; involucral leaves 

 smaller than those of the stem. XXV. HARPAN- 

 THUS. 



Inner involucre elongate, cylindric, longer than the 

 calyptra, the mouth compressed-bilabiate; involu- 

 cral leaves connate at base. XXVII. COLEOCHILA. 



Inner involucre elongate fusiform, rising from the lower 

 side of the stem, fleshy, solid, rooting at the base, 

 the mouth compressed, 2-3-cleft; involucral leaves 

 3, minutely scale-like. XXII. PLEURANTHE. 



Involucral leaves small, incised; inner involucre arising 

 from the ventral side of stem, terete, trigonal at 

 the apex; the mouth denticulate. XXIV. ODON- 

 TOSCHISMA. 



Not included in the above. XXVIII. JUNGERMANIA.* 



Involucre saccate, fleshy, attached by one side of its 

 mouth to the stem, pendent. XIX. GEOCALYX. 



Involucral leaves few, large; inner involucre tubular 

 below, acutely triquetrous above, dilated and three- 

 lobed at the mouth, the lobes toothed-crested; 

 leaves decurrent on the dorsal side of the stem. 

 XXI. LOPHOCOLEA. 



Involucral leaves more numerous T 



Involucral leaves smaller than those of the stem and 

 differing from them ; inner involucre usually short, 

 deeply 2-3-cleft; leaves usually deeply 2-cleft. XX. 

 CHILOSCYPHUS. 



Involucral leaves imbricate, jointed-ciliate; inner invo- 

 lucre terete, glabrous, contracted and ciliate at the 

 mouth; leaves 3-4-parted, the divisions bristle-form. 

 XII. BLEPHAROSTOMA. 



* The genus Jungermania, altho its original limits have been much 

 reduced, still contains a heterogeneous lot of species that cannot be 

 properly classified until, 1st. The limits of genera become more clearly 

 <l Q finer|, and, 2nd. The sporogony phase of all of our species becomes 



UUD'A'11. 



