PELL [A. U7 



3. Pellia calycina {Taijl) 



Jangermania calycina, Tayl. in Mackay Fl. Hib. 11, 55 (l.s;)(i). 

 Jungermania endivioifolia, Dicks. PI. crypt. Brit. fasc. iv. p. ID (l.SOl ) ? 

 Jimgermania epiphylla, vax. farciyera, Hook. Brit. Jung. t. 47, f. 18 (1<S1(;). 

 Marsilia eyidivicefolia (Dicks.) Lindb. Muse. 8cancl. p. 10 (1«71)). 



Dioicous, growing in spreading flat patches, medium to largish 

 in size, dark to brownish-green in colour, translucent, shining. 

 Fronds dichotomous, proliferous, broadly linear, palmatifid, 

 margins undulate, sometimes crisped and raised, midrib broad, 

 distinct ; texture thin but firm ; cells large, hexagonal ; radi- 

 culose, rootlets brownish- white. Involucre proceeding from the 

 middle of the frond near the apex on its antical side, large, erect, 

 cup-shaped, ventricose, subplicate, mouth lacerate, irregularly 

 dentate. Calyptra short, included, smooth. Pedicel delicate. 

 Capsule spherical, light brown, composed of two layers of cells, 

 inner layer destitute of the semi-spiral threads. Elater-bearers 

 often about 100, attached to the base of the capsule, pale yellow, 

 in the form of long threads, somewhat straight and not entangled, 

 loosely and irregularly bi-spiral, sometimes uni- or tri-spiral. 

 Elaters only slightly bent, both ends conical, with 3 or 4 spiral 

 threads. Spores oval, slightly niuriculate. Antheridia irregularly 

 immersed in the frond above mid-rib. 



Fruits in Spring. 



Dimensions. — Fronds 1 to 2 inches long, about \ inch broad ; 

 involucre 4* mm. long x 2' mm. broad; capsule 1'5 mm. 

 diameter; valves of capsule -08 mm. x *07 mm.; elater-bearers 

 ■6 to "8 mm long x "005 mm. broad; elaters '\lb mm. x 

 *015 mm. ; spores "08 mm. x '07 mm. 



Hab. — Growing in wet places on banks and rocks. Moderately 

 common. 1. Cornwall, not unfrequent, //'. Ciintow. 2, 3. 

 Hungersball Kocks, Jeniier ; Southborough, Fawcetf ; near 

 Hadley, E. M. Holmes ; Bexley, E. JL Holmes ; near J\[aidstone, 

 Kent, E. M. Holmes. 4, 5. Seckley Wood; near Leek; Dim- 

 mings Dale ; Weeford, Staffordshire, /. E. Ba(/naU. 7. Dolgelly, 

 Merionethshire, W. H. P. 8. Stirrup Wood, Derbyshire, G. A. 



