HANDBOOK OF BRITISH HEPATIOE. 55 



cence on proper plant, terminal and lateral, 

 forming long narrow spikes. 



Radula Lindenbergii, Hartt. Skand. Flora, 

 1871. Radula Lindbergii, Gott. in Revue 

 Bry., 1882, p. 82. Radula Lindbergiana, Jack. 

 Flora, 1 88 1, p. 181. Radula commutata, 

 Gottsche Jack. Flora, 181, t. 8, f. 5. Radula 

 germana, Jack. Flora, 1881, Vol. VIII., fig. 6. 



On rocks and amongst moss. (Plate I, fig. 



7<5.) 



Spruce (Journ. Bot, 1887, p. 210) regards Radula 

 Lindbergii, as including also R. germana, Jack., and 

 R. commutata Gottsche. 



The form, called R. germana resembles large 

 forms of Lejeunia serpyllifolia, growing in patches 

 procumbently, with shoots imbricating, or grow- 

 ing erect when intertwined with mosses, of a pale 

 yellowish green, or darker, with the old parts sordid 

 brown. Stems f to i inch long, frontally compressed, 

 those of female plant subpinnate, furcate or dicho- 

 tomous, barren male stems often almost simple. 

 Rootlets few. Leaves alternate, ascending, the 

 upper ones imbricating each other, those of the 

 lower portion approximate. On slender stems the 

 leaves are more distant, roundish ovate, or obovate, 

 convex, hiding the stem, entire, superior lobes often 

 irregularly erose, lobule usually one-third less, 

 rhomboid, subquadrate, ovate, at the free corner 

 acute or obtuse, base tumid, upper portion plane 

 and appressed. Involucral leaves accrescent, ob- 

 long, with narrower lobes and lobules, enclosing 

 seven to ten sterile archegonia, perigonial leaves 



