88 Illinois State Laboratory of Natural History. 



4. O. Drummondii Tayl. Small, densely csespitose; 

 stems brandling, prostrate, the gemmiferous ones ascending, 

 attenuate; leaves erect-spreading, oblong, 2-cleft; amphigastria 

 ovate, acute, connate with the adjacent pair of leaves; inner 

 involucre terminal on short naked branches, oblong, inflated, 

 bifid and subcompressed at the mouth, gibbous at the ventral 

 base; involucral leaves laciniate, scale-like. 



Hah. — "Bark of trees ; N. A." (Drummond). 

 Bib.— Syn. Hep. p. 709. 



XXI. LOPHOCOLEA Nees. 



Fructification terminal on the main stem or on primary 

 branches. Inner involucre tvibular below, acutely triquetrous, 

 more or less dilated and 3-lobed at the mouth, the lobes tooth- 

 crested. Involucral leaves 2-4, large. Calyptra short, mem- 

 branous, included, circumcissile at the base or rupturing irreg- 

 ularly at the apex. Capsule oval or oblong, 4-valved to the 

 base. Elaters bispiral. Antheridia in the saccate bases of the 

 involucral leaves. Leaves decurrent on the dorsal side of the 

 stem, flaccid, 2-several cleft at the apex. Amphigastria 2-4 di- 

 vided, the divisions more or less incised. Name from Gr. 

 loplios, a crest, and koleos, a sheath, alluding to the crested in- 

 ner involucre. 



* Divisions of amphigastria entire, 

 f Amphigastria minute. 



1. L. bidentata Dumort. Stems elongate, 2.5 — 5 cm. 

 long, sparsely branching; leaves pale green, ovate-triangular, 

 spreading, 2-tootlied at the apex, the teeth oblique, acute, with 

 a crescent-shaped sinus; amphigastria about 4-cleft. (Junger- 

 mania bidentata L.) 



Hab. — On rocks in shady rills ; not common. (Eu.) 

 Bib.— Syn. Hep. p. 159, 691 ; Hep. Europ. p. 83. 

 Delhi.— Brit. Jung. t. 30; Ekart, t. VIT, f. 53. 



ff Amphigastria medium size. 



