MAKSUPELLA. 383 



ridiii 1 or 2 in the axil of the bracts, oval. Perianth small, 

 immersed, delicate, composed of larger cells than the leaves, 

 oval-globose or tubular, 4, 5 laciniate, sometimes composed of 

 2 bilobed leaves rarely with a further segment, adnate from the 

 base to nearly the middle with the innermost bracts, very rarely 

 free to the base. Calyptra oval-globose, surrounded about the base 

 by 6-8 sterile pistillidia. Capsule globose, composed of two layers, 

 inner with semi-annular fibres. Spores small, brown. Elaters 

 as wide as the spores, same colour, bispiral, rarely trispiral. 



Dimensions. — Stems 2* to 5" mm. long, 075 to '15 mm. diam., 

 with leaves (fertile) "05 mm. wide (sterile) '35 mm ; leaves "3 mm. 

 X "25 mm., seg. '11 mm., •Gmm. x '5 mm., seg. '15 mm., '5 mm. 

 X '4 mn., seg. '1 mm., "25 mm. x '25 mm., '35 mm. x '3 mm., •4 mm. 

 X '33 mm., '55 mm. x '45 mm. ; cells '02 mm. x 0125 mm., '015 

 mm. X '015 mm., '0175 mm. x '0175 mm., '02 mm. x '015 mm. ; 

 sub-bract '4 mm. x 4*75 mm.; seg. '1 mm; bracts 1' mm. x 1' 

 mm. ; seg. '225 mm., '5 mm. x '5 mm., 'G5 mm. x '5 mm., '85 mm. 

 X I'l mm., I'l mm. x I'l mm.; perianth '7b mm. high; pedicel 

 2' mm. long; capsule '3 mm.; spores '01 mm. diam.; elaters 

 '1 mm. long x '01 mm. broad. 



Hab. — Grows in very thin shallow patches on soft sandstone 

 rocks in moist situations, in the plains or in subalpine or alpine 

 localities. Eare. 



2. Blackdown, Sussex, Jciiuer, Georfje E. JJacies;. 7. Fairy 

 Glen, Bettwys-y-Coed, Dr. Carriiu/fon ; Snowdon, Carnarvonshire, 

 IF. TL P. ; Tyn-y-Groes, Dr. Carringlon c^ W. II. P. ; Cader 

 Idris, Merionethshire, Wild ci: Holt. 10. Park Quarry, Castle 

 Howard, Yorks., Br. Sjjrnce, M. B. S/a/er, G. Stabler. 12. Harter 

 Pell; Bow Fell; Oxenden, Westmorland, G. Stabler. IG. Moidart, 

 West Inverness, S. M. Macvicar cO JF. II. P. 



Found on the Continent and in North America. 



Obs. — Mars/ij)('I/a .sparsifo/ia, Lindb., which is also paroicous, 

 is a much larger and robust species, of a darker colour, with lobes 

 of the leaves obtuse. 



Marsupclhi olivacea, Spruce, has more oval lcave.«, with 

 shallower sinuses, 



