BOTRYCHIUM. OrHIOGLOSSUM. 533 



Subord. III. Ophioglossacea. Tr. VII. Ophioylossea. 



18. BOTRYCH/ITTM Sw. Moon-wort. 



1. B. Lundria (Sw.) l ; frond pinnate solitary, pinn3 lunate or 

 fanshaped notched or crenate. E. B. 318. H. F. 48. N. 137. 

 Height 3 6 in. PinmB with veins radiating from the petiole, 

 sometimes deeply notched. Fronds usually solitary, but some- 

 times two on the same stalk. /3. B. ruta^ceum (Sw.) ; frond tri- 

 angular-rhomboidal pinnatiu'd, pinnae 7 9 linear incise-serrate 

 decreasing upwards. N. ed. 3. 332. See Milde Fil. Europ. 195. 

 Pastures. /3. Sands of Barry, Forfar. P. V. VII. E. S. I. 



19. OPHIOGLOS'SUM Linn. Adder's- tongue. 



1. O. vulgdtum (L.) ; frond ovate blunt, epidermal cells 

 flexuose, spores tubercled. E. B. 108. H. F. 46. N. 349. 

 Height 4 : 12 in., erect. Spike clubshaped, usually rather 

 longer than the frond, sometimes very long. /3. polyphyllum 

 (Braun) ; rhizome often producing two fronds from the same 

 joining, frond oblong-lanceolate narrowed below 24 in. high, 

 var. ambiyuum (C. & G.) ed. viii. Pastures. /3. [Merioneth. 

 Shetland. St. Hilda.] Orkney. Scilly. P. V. VI. ' E. S. 1. 



2. O. lusitan'icum (L.) ; frond linear-lanceolate, epidermal cel]g 

 straight, spores smooth. H. F. 47. N. ed. 3. 331. S. 47. 

 Height 1 2 inches, erect. Horn Head, Co. Donegal, Petit 

 Bo Bay, Guernsey. P. I. I. 



1 S. matricfsfolium (Braun) with ovate bipinnatifid sterile fronds 

 having distinct primary veins to the segments, and broadly spreading 

 fertile fronds, is recorded from Stevenston, Ayrsh. (Dr. O. St. Brody), bj 

 Mr. Whitwell in J. of B. xxxvi. (1898) p. 291, t. 388 B, but some uncer- 

 tainty attaching to the specimen, the record needs confirmation. Mr. 

 Whitwell follows Moore and Boswell in referring the Sands of Barry plant 

 to B. lanceolatum (Angst.). H. & J. G. 



2A3 



