52 



lUinois Sfdfo Laboratory of Natural History. 



R 



Inner involucre distant from the outer, fusiform, the 

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

 smaller than those of the stem. XXV. Harpan- 



THUS. 



Inner involucre elongate, cylindrie, longer than the 

 calyptra, the mouth compressed-hilabiate; 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. Jukgermania.* 



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 



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 

 defined, and, 2nd. The sporogony phase of all of our species becomes 



UlinWll. 



