CRYPTOGAMIA— FILICES. Lycopodium. 33) 



ti-ailing, densely leafy. Leaves small and narx'ow, in 

 several rows, sessile, simple, undivided, either entire or 

 serrated, of a dry and rigid substance, evergreen ; those 

 which are accompanied by capsules diminished, in some 

 species, to the scales of a spike, with elongated points. 

 Caps, pale yellow, small, naked. Seeds often highly in- 

 flammable, like powdered sulphur. 



1 . L. clavahim. Common Club-moss. 



Stem creeping. Branches ascending; partially almost 

 naked. Leaves scattered, incurved, with filamentous 

 points. Spikes, two or three, cylindrical, stalked, with 

 dilated, membranous scales. 



L. clavatum. Linn. Sp. PL 1564. fVilld. v. 5. 1 6. H. Br. 1 108. 



Engl. Bot. V. 4. t. 224. Hook. Scot. p. 2. 169. Fl. Dan. 1. 126. 



Dicks. H. Sicc.fasc. 7. 18. Ehrh. Crypt. \ 12. 

 L. n. 1 722, Hall. Hist. v. 3. 22. 

 Lycopodium. Raii S?jn. 107 . 

 h. vulgare pilosum amfragosum et repens. Dill. Muse. 441 . <. 58. 



/.I- 



Muscus terrestris. Trag. Hist. 555. f. Mattfi. Valgr. v. 1. 57. f. 

 Corner . Epit. 32./. Dalech. Hist. 1324./. 



M. terrestris repens, pediculis follaceis binis clavis in altum se eri- 

 gentibus. Pluk. Almag. 258. Pfiyt. t.47.f.8. Moris, v. 3. 623. 

 sect. 15. t.5.f.2. 



M. terrestris repens, a Trago pictus. Bauh. Hist. v. 3.758. f. 



M, clavatus, sive Lycopodium. Ger. Em. 1562./. Moris, v. 3. 

 623. n.\. 



M. clavatus. Lob. lev. 2.244. f. 



Chamaepeuce. Cord. Hist. 111.2./. 



Pes ursinus. Gesn. de Lunariis. 64. 



On mountainous heaths, or stony moors, abundantly. 



Perennial. July, August. 



Roots of several strong scattered fibres. Stems procumbent, trail- 

 ing, branching, leafy, several feet in length. Leaves crowded, 

 curved upwards, linear-lanceolate, flat, ribless, smooth, deep 

 green, partly serrated, tipped with a capillary point ; those of 

 the branches erect ; the upper ones loosely dispersed. Spikes 

 terminal, usually in pairs, rarely one, or three, densely beset 

 with shortened, dilated, ovate, entire, long-pointed leaves, or 

 scales, in whose bosoms the small, sulphur-coloured capsules 

 are situated. I never heard of more than the usual kind, whose 

 minute, copious, volatile seeds are used in Germany for artifi- 

 cial lightning on the stage, and are sold in the shops. When 

 dispersed in the air, they take fire with a candle, and suddenly 

 explode. 



