CRYPTOGAMIA ALG7E. 781 



Flat pale-green Jungermannia. Jnglis. 



On trunks of trees common. III. IV. 



This is a tender, unelaiiic fpecies, either of a pale 

 green, or a yellowilli green colour, adhering fiat 

 to the bark of trees, and irregularly branched 

 to the extent of one or two inches. The leaves 

 are clofely imbricated in a double feries and al- 

 ternate order, of a circular figure, flat, nearly 

 tranfparent, and cover the middle nerve on the 

 upper fide. On the under fide are minute, 

 round, or oval fcales, or auricles, at the bafe of 

 the leaves J which adhere to the nerve. 



The frudifications arife indifferently at the extre- 

 mities and angles of the branches, and fome- 

 times out of the middle of them. The z^dgina is 

 comprefs'd and flat, twice as large as the leaves, 

 of a pale green colour, and truncated at top. 

 The peduncle is flender, filvery, and very fliorc, 

 not above i-i2th of an inch long. The ^«- 

 tbera oval, of a greenifli black colour, and 

 burfls into four fufcous hairy fegments. 

 Pale green farinaceous grains are fometimes fccn 

 on the edges of the leaves, as in many other 

 fpecies- 



d'datala 16 j. furculis repentibus, foliis inferne auriculatis du- 



piicato-in-ibricatis, ramis apice latioribus. 6)). ^/. 



i6co. (Michel, gen. t. 6 /. 6. Vail. Paris, t. i^. 



f. 10. Dilien.tnufc, t. 72./. 2'. opt.) 



Little dark-green convex fcalv Jungermannia. yf;;- 



glis. 



On 



