318 CRYPTOGAMIA— FILICES. Lycopodium. 



trailing, densely leafy. Leaves small and narrow, in 

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

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

 which ai*e accompanied by caj)sules diminished, in some 

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

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

 flammable, like powdered sulphur. 



1. L. clavatwn. 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. 16. FL Br. 1 108. 



Engl. Bot. V. 4. t. 224. Hook. Scot. p. 2. 159. FL Dan. 1. 126. 



Dicks. H. Sicc.fasc. 7. 18. Ehrh. Crypt. 112. 

 L. n. 1722. HalL Hist. v. 3.22. 

 Lycopodium. Raii Syn. \Q7 . 

 L. vulgare pilosum amfragosum et repens. DHL Muse. 441. ^58. 



/• '• 



Muscus terrestris. Trag. Hist. 555. f. Matth. Valgr.v. \.57.f. 



Camcr. EpiL 32. f. Dalech. Hist. 1324. f. 



M. terrestris repens^ petUculis foliaceis binis clavis in altum se eri- 

 gentibus. Pluk.Almag.25Q. PhyL t.47.f. 8. Moris, v. 3. 623. 

 sect.\5.t.5.f.2. 



M. terrestris repens, a Trago pictus. Bauh. Hist. v. 3. 758./. 



M. clavatus, sive Lycopodium. Ger. Em. ]562.f. Moris, v. 3. 

 623. n. 1. 



M. clavatus. Lob. Ic. v. 2. 244./. 



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 j those of 

 the branches erect j 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. 



