BLASIA. 441 



resembling stipules vvliicli are unequcilly dentate. Involucre 

 antical, oblong-lanceolate, inflated, semi-transparent, vanishing- 

 early, imbedded in an oval cavity in the mid-rib of the fronds. 

 Calyptra obovate, free. Capsule oval-globose, on a long pedicel, 

 4-valved, valves thick, dull reddish brown in colour, inner layer 

 with imperfect spiral threads. Spores sub- spherical, greyish- 

 brown, slightly granulate ; elaters very narrow, about \ the 

 diameter of the spores, hyaline, bi-spiral. Male plant smaller, 

 narrower and rarer ; androecia imbedded in the antical side of the 

 frond ; antheridia elliptical, yellowish in colour, shortly stipitate. 

 (xemmiparous ; gemma3 numerous, globose, issuing by a slender 

 ascending tube from their flask-like receptacles, which are 

 immersed in the frond. Fruits March and April, quickly dis- 

 appearing. 



Dimensions. — Fronds ^ to 1 inch long, 4'-G' mm. wide; cells 

 •03 mm. X '04 mm. ; spores "05 mm. diam. ; elaters '2 mm. 

 long X '01 mm. broad. 



Hab. — On wet clayey banks in woods, or on moist heaths. 

 Moderately rare. 



1. Trembath, Chyanhal, Trungle Moor, Cornwall, if. Curnoic ; 

 Madron Valley, near Carfury, and near Gurnard's Head, Cornwall, 

 J'J. D. Marqaand. 3. Road leading from Langton Green to Speld- 

 hurst Church, Fon^fcr, " Fl. Tunbr." 5. Banks of Severn, Seckley ; 

 Arley Wood ; Dimmings Dale, Staffordshire, IF. Bagnall. 7. 

 Cvvin Bychan, Merionethshire, Ttev. T. Salway. 8, 9. Marple, 

 Cheshire, G. A, Holt; Ashley, Cheshire, W. H. P. ; Daisy Nook, 

 Lane, G. A. Holt, Sailor's Shore, Lane, G. A. Holt, Holden 

 Clough, Lane, G. A. Holt. 10. Near Claphara, i)r. Carrington ; 

 Clay pool-side, near Sherburn, Br. F. A. Lees; Halifax, ./. Bolton ; 

 Todmorden, John No well ; Pennant Clough, Hebden Bridge, A. 

 Stansjielcl. 12. Low Borrow Bridge ; Foulshaw ; by river Lune, 

 near Ingmire Hall, Westmorland, G. Stabler. 13. Damp road- 

 sides, New Galloway, J. McAnclreir ; near Carronbridge, Charles 

 Scott; Cluden Mill, Kirkcudbrightshire, /<7//^<:^s 6y7//r/-.s//r/y//-. 15. 

 Den of Garrol, Aberdeenshire, /. Sim. IG. Moidart, West 

 Inverness, S. M. Macvicar. 



