ii6 



HANDBOOK OF BRITISH HEPATIC^E. 



Linn. Journ. XIII.; Carr. and Pears. Exs. iSo. 

 AntJiclia Tunicri, Dumort. Rev. Jung. p. i8. 



Banks of mountain streams. (Fr. March.) 



Forming patches creeping on the ground, i to 2 

 inches diameter and radiating from a centre, 



pale yellowish green, stems 

 three or four lines long, pro- 

 cumbent, slender, flexuous 

 mostly simple, sometimes 

 irregularly divided, rootlets 

 from the under side ; leaves 

 somewhat close and regular, 

 in two rows, spreading, em- 

 bracing at the base, broadly 

 ovate, divided half way by an acute sinus into two 

 ovate or lanceolate sharp, almost conduplicate seg- 

 ments, fringed at the margins with large spine-like 

 teeth of unequal size (fig. 8i). Colour pale yellow 

 green. Perich^etial leaves closely imbricate on all 

 sides of the calyx, differing from the cauline in 

 being quadrate, frequently broader than long, and 

 cleft for one-third of their length into three or four 

 ovate acute spiny dentate erect segments. Calyx 

 linear-oblong, slightly longitudinally plicate, or ob- 

 tusely angular, at first incurved, then erect. Cap- 

 sule ovate brown. Elaters bispiral. 



8i. 



Genus i6. ADELANTHUS, Mitt. 



Involucre constituted from two to four 

 opposite scale-like leaves. Perianth tubular, 

 rather three-sided, mouth connivent, dentate, 



