MARSUPELLA. 387 



bracts, mouth ciliolate, rose colour, when mature but little shorter 

 than the bracts, and adnate to the same to ^ or f, mouth fimbriate, 

 afterwards ruptured, delicate, laxly reticulate. Calyptra not much 

 smaller, globose, delicate, sometimes of" a purple tinge, cells large, 

 4-, 5-, and G-angled, elongate, base constricted; barren pistillidia 

 surrounding the base. Capsule exserted on a short pedicel, 

 moderately large, oblong-globose. Spores smooth, same diameter 

 as the elaters, which are bispiral. Andrrpcia terminal or situated 

 in the middle of the stem or branches ; bracts 3 pairs (rarely 

 more), large, 2 to 3 times larger than the adjacent leaves, very 

 ventricose, bilobed to ^. Antheridia large, pedicellate, solitary, 

 rarely two. 



Fruits in Summer. 



Dimensions. — Stems from ^ to f inch long, "075 mm. in 

 diam., with leaves "2 mm. wide; lower leaves '15 mm. long, 

 '275 mm. long x "l^S mm. broad ; segments '1 mm., upper leaves 

 •4 mm. long x '225 mm. broad; seg. "125 mm., '425 mm. x 

 •325 mm., seg. "l mm. ; cells '02 mm. x -02 mm., '0175 mm. x 

 '0175 mm., '02 mm. x "0175 mm., "015 mm. x "015 mm.; outer 

 bract '5 mm. x "3 mm., seg. '2 mm. ; bract '55 mm. x '45 mm., 

 seg. "15 mm., "6 mm. x '45 mm., seg. "25 mm., '7 mm. x "7 mm.» 

 •75 mm. X "75 mm. ; perianth '5 mm. long x '25 mm. broad, 

 •65 mm. long; capsule ^35 mm. x -25 mm.; perigonial bracts 

 '375 mm. x ^4 mm. ; antheridia ■15 mm. x 'I mm. 



Hab. — Growing often in large patches on damp, decaying 

 rocks in subalpine or alpine localities. Very rare. 7. Cader 

 Idris, Merionethshire, G. A. Half; Y Try fan, Carnarvonshire, 

 W. H. P. 12. Oxenden, Westmorland, G. SfafjJpr ; Langdale, 

 Westmorland, G. Stabler cV //". //. P- ; Nan Beild, Mai-dale, 

 Westmorland, G. S'/r//j/er ; Bow Fell, Westmorland, G. tS/ab/cr ; 

 Honister Pass, Cumberland, W. II. P. 15. Ben MacDhui, G. 

 Stabler. Scotland, Dr. Carrim/fon, ride letter from Dr. Spruce. 

 16. Moidart, AVest Inverness, >V. M. Macvicar ^- W. H. P. 



Obs. — One of the most beautiful and distinct of liepatics, dis- 

 covered by Mr. George Stabler, of Levens, on Bow Fell, in 1875, 

 and named after its discoverer by Dr. Spruce. 



