HANDBOOK OF BRITISH HEPATIC^E. 69 



segments, beset at the margin with variously sized, 

 rather large, spinulose teeth ; inferior lobe very 

 minute and oblong, margin nearly entire. Colour 

 purplish-brown, stipules very large, broader than 

 the stem, widely ovate, cleft into two spiny-toothed 

 segments, with a re flexed spur at the base (fig. 

 52). 



Genus 7. HERBERTA, Gray. 



Involucre many-leaved, leaves connate at 

 the base, deeply two-lobed ; perianth none, 

 calyptra included ; capsule four-valved, cori- 

 aceous, naked ; elaters double, naked, decidu- 

 ous. Gray Arr. I., 705. Schisma, Dumort. 

 Hep. Eur., t. 4, f. 38. See Spruce, Hep. Amaz. 

 p. 340. 



Herberta adunca, Dicks. 



Stem erect, flexuous ; leaves quadrifarious, 

 falcate, secund, elongated, bipartite ; laciniae 

 awl-shaped, long, acuminate, straight, entire 

 at the base. 



Jungermannia adunca, Dicks. Crypt. III., p. 

 12, t. 8. Jungermannia juniperina v. adunca, 

 Hook. Br. Jung. t. 4. Schisma aduncam, 

 Dumort. Comm. p. 116. Sendtnera adunca, 

 Gott. and Rab. Exs. 210; Carr. Trans. Bot. 

 Soc. Edin. VII., 454; Cooke Hep. f. 130. 

 Herberta adunca, Carr. and Pears. Exs. No. 

 42. 



