l/c/Htf i('<f <>/' \orflt Anirrti-o. 61 



0. F. Macouni Aust. Stems thickened, very short, 

 leaves imbricate, strongly cristate-undulate and plicate, acutely 

 incised-dentate; inner involucre small, cup-shaped or funnel- 

 shaped, the margin crenate and somewhat undulate; capsule 

 large, exserted; spores very small, somewhat opaque, minutely 

 and closely papillose; elaters rather thick, bispiral. 



Hob. Portage la Lochs, lat. 57 Canada (Macoun). 

 Bib.Bot. Bulletin (now Bot. Gazette) I, 36. 



VII. FRULLANIA RADDI. 



Dio3cious. Sporogonium terminal on the branches. Invo- 

 lucral leaves 2 or 4, 2-lobed, not auriculate. Inner involucre 

 oval or obovate, terete or 3-4-angled, mucronate at the apex by 

 a tubular mouth. Calyptra pear-shaped, persistent, rupturing 

 below the apex. Capsule globular, 4-cleft halfway down. 

 Elaters truncate at both ends, unispiral, adherent to the valves, 

 erect. Spores large, irregular, minutely muricate. Archego- 

 nia 2 or 4. Antheridia in the saccate base of closely imbricate, 

 2-lobed perigonial leaves. Leaves 2-lobed, the lower lobe usu- 

 ally an inflated helmet-shaped auricle. Amphigastria entire or 

 2-toothed, throwing out rootlets from the base. Named for 

 tiig. Leonardo Frullani, an Italian minister of state. 



* Auricles galeate or cucullate-rotund. 



f Amphigastria small, scarcely wider than the stem. 



% No tooth on the margin of the involucral leaves. 



a. Auricles much smaller than the leaves. 



1. F. Eboracensis Grottsche. Steins creeping, clus- 

 tered-branched ; leaves loosely disposed (those of the branches 

 imbricate), round-ovate, entire; amphigastria ovate, a little 

 wider than the stem, bifid, entire; inner involucre smooth, 

 pyriform, slightly compressed and repand,. beneath obscurely 

 carinate and gibbous toward the apex. (F. saxatilis Lindenb., 

 F. microscypha, Iwviscypha et nana Tayl.) 



JJab. Trees and rooks ; common northward. 



Bib.- -Syn. Hep. p. 423. 



Ej'sic. Hep. Bor.-Aiuer. No. 105. 



