EXPLANATION OF THE PLATES. 



105 



Fig. 17. Toetula muealis. 

 Wall Screiv Moss (a) . 



Colour. Emerald green^ with wJiite hairs. 



Stems. Short, ia thick cushions. 



Leaves (6) . Oblong, the nerve runniag into a hair-like point ; margins recurved. 



Mowers and Emit. Monoicous. Capsule oblong ; seta red. Spring. 



Locality. Abundant upon walls. 



Varieties. Incana. — Shorter and smaller ; hair-points of leaves very long. 



jEstiva. — Stems more slender ; leaves narrower. 



Rupestris (Fig. 18) . — Larger ; leaves oblong, darker green, very hoary ; 

 capsule long, curved. 



Fig. 19. Toetula maeginata. 



Border-leaved Screw Moss [a] . 



Colour. Yellow green. 



Stems. Short, not branched, gregarious. 



Leaves (6) . Lanceolate, margin thickened ; nerve excm-rent. 



Flowers and Fruit. Monoicous. Capsule cyliudrical. Summer. 



Locality. On sandstone walls. Rare. 



Fig. 20. Toetula augustata. 

 Upright Screw Moss (a) . 



Colour. Yellow green. 

 Stems. Short, gregarious. 

 Leaves (b) . Lanceolate, acute. 

 Flowers and Fruit. Monoicous (?) . 

 Locality. Near Ringway, Cheshire. 



Capsule cyliadrical ; lid subulate. 

 Mr. Wilson. 



