miYEi. 187 



11. M. subglobosum, Br. fy Schimp.; synoicous; stems 

 slender, erect, as well as the radical shoots ; leaves spreading, 

 roundish, obovate, obtuse, entire ; border narrower ; sporan- 

 gium roundish, small; lid shortly beaked. Hook, fy Wils. t. 

 li. ; Eng. Bot. t. 2907. 



In bogs, north of England and Scotland. Bearing fruit in 

 early spring. 



A more delicate plant than the last, with less crowded leaves, 

 a narrower less cartilaginous border, and a shorter more glo- 

 bose sporangium. The inflorescence also is different, and the 

 spores larger. 



This, and the preceding species, approach in the character of 

 their innovations to Bryum. 



53. ZIERIA, Schimp. 



Sporangium pyriform or subpyriform, with a long neck, 

 gibbous at the back ; mouth oblique ; ring broad ; peristome 

 double ; outer of sixteen lanceolate teeth ; inner a plicate 

 membrane, divided into sixteen more or less cloven or perfo- 

 rated teeth, longer than the outer, with rudimentary interme- 

 diate processes ; leaf-cells large, hexagono-rhomboid. 



1. Z. julacea, Schimp.; leaves ovate, acuminate, concave, 

 imbricated, entire ; nerve ceasing below the tip ; sporangium 

 more or less inclined, incurved ; neck longer than the spore- 

 sac. Hook. $ Wils. t. xxix. ; Eng. Bot. t. 1021 ; (Plate 18, 

 fig. 1); Moug. Nest. n. 1122. 



In moist crevices of alpine rocks. England, Scotland, Ire- 

 land, and Wales. Bearing fruit late in autumn. 



Dioicous ; forming soft patches, at first green, then silvery- 

 white or pinkish. Stems short ; leaves closely imbricated, very 

 concave, thin, membranous, almost colourless, except at the 

 base ', fruitstalk about J an inch long, arched above ; sporan- 



