HANUUUUK. Ol' I'.RniSH Ill.I A I IC.K. 



6i 



leaves large, smooth, greenish yellow. — I look. 

 Br. Jini^. t. 4<), /'. 4. 



42. 



Old walls, rocks, and trunks. (Fr. March, April.) 



Grows in considerable patches. Stems i to 2 

 or 3 inches long, flexuose, often pinnate, with 

 strac^^gling branches, 

 wliich are again 

 shortly branched. 

 Leaves closely im- 

 bricate in two rows, 

 so as to conceal 

 the upper part of the stem 

 (fig. 42), unequally two- 

 lobed, the upper lobe the 

 largest, alternate, ovate, ap- 

 proaching round, slightly 

 concave, margins incurved, 

 entire, or here and there 

 slightly toothed, lower lobe strap-shaped, diagonally 

 pressed to the surface of the upper, plane, margins 

 recurved and entire. Colour, deep or blackish 

 green, opaque. Pericha^tial leaves like the cauline, 

 but smaller, and the lobule proportionately larger, 

 two to each calyx, stipules adpressed, oblong ovate. 



44. 



45- 



