WEISSIEI. 297 



behind. Hook. % Wils. t. v. ; Eng. Bot. t. 1680.; (Moug. $ 

 Nest. n. 703.) 



In calcareous fields. Bearing fruit in spring. 



Monoicous ; forming yellowish-green patches. Stem more 

 or less divided ; sporangium elliptic or subglobose, generally 

 immersed, but sometimes exserted on the same plant ; leaf-cells 

 and spores exactly as in G. squarrosum. 



2. S. multicapsulare, Schimp. ; stems elongated, loosely 

 tufted ; leaves distant, widely spreading, slightly crisped when 

 dry, lanceolate, apiculate ; margin plane ; perichaetial leaves 

 erect ; sporangia roundish, immersed, often in pairs ; lid 

 somewhat obliquely rostrate. Hook. Wils. t. xxxvii. ; Eng. 

 Bot. t. 618. 



In fields. Bedfordshire, Yorkshire, and Cheshire. Bear- 

 ing fruit in early spring. 



Monoicous ; forming dull-green patches. Stem more or 

 less branched, elongated, \ an inch or more long ; perichsetial 

 leaves wider, not crisped when dry and not suddenly acumi- 

 nate; sporangia sometimes in pairs; veil large; leaf-cells 

 large and less opaque. 



3. S. Mittenii, Schimp. ; stems elongated ; leaves linear- 

 lanceolate, scarcely crisped when dry ; perichsetial leaves small, 

 spreading; sporangia solitary, somewhat exserted, ovate; lid 

 minute, rostrate ; spores larger. 



On clay banks. Hurstpierpoint, Sussex. Bearing fruit in 

 spring. 



The larger spores, more solid leaves, smaller spreading pe- 

 richsetial leaves, seem to indicate a distinct species. The 

 longer fruitstalk, solitary sporangia, and situation of the male 

 flowers at the base of the fertile innovation are perhaps cha- 

 racters of less value. 



