EXPLANATION OF THE PLATES. 135 



Fig. 4. Zygodon vieidissimus. 



Green Yoke Moss (a) . 

 Colour. Bright yellow green. 



Stems. Short, not much branched, in the lower pai't radiculose. 

 Leaves (&) . Apiculate, widely lanceolate, much spreading ; nerve ceasing below 



the apex. 

 Flowers and Fruit. Dioicous. Seta long; capsule oval; mouth narrow; ribs 



faint ; lid short. Spring. 

 Locality. On trees and rocks. 



(6) . Capsule with peristome. 



Fig. 5. Zygodon conoideus. 



Lesser Yoke Moss [a] . 



Colour. Yellow green. 



Stems. Short, tufted. 



Leaves. Broadly lanceolate, tufted. 



Flowers and Fruit. Dioicous. Capsule pyriform, striated ; beak long ; seta long 



and slender. Spring. 

 Locality. Trunks of trees ia Scotland. Frequent in England, but rare in fruit. 



Fig. 6. Zygodon gracilis. 



Slender Yoke Moss (a) . 

 Colour. Brown and black. 



Stems. One iuch or more long, slender, branched. 



Leaves. Ovate-lanceolate, coarsely toothed at the apex, spreading, not tufted. 

 Flotvers and Fruit. Barren when found ia England. 

 Locality. Malham in Yorkshire. Mr. Wilson's MS. 



