ORDER 158. LYCOPODIACE^E. 



811 



killed by drought.) Fruit sessile on the under side of the branches, of 

 2 kinds ; the sterile smaller, opening all around, containing a thick 

 "body bearing 3 angular lobes (antheridia) above ; the fertile a thin 

 pericarp bursting irregularly, containing many globular, stalked sporangia 

 each with a few spores. Minute, floating, resembling a Jungenmumia, 

 with filiform stems and lobed fronds. 



A. Caroliiiiana Willd. Lvs. ovate-oblong, obtuse, imbricated, fleshy, floating, 

 reddish beneath, scarcely more than '' in length ; sterile fruits in pairs or soli- 

 tary, at the base of the fertile, many times smaller than it. Lakes and marshes 

 N. Y. to 111. and S. States. 



4. SALVIN'IA natans L, inserted in previous editions on the au- 

 thority of Pursh, has not been observed since. 



ORDER CLVIII. LYCOPODIACEJS. CLUB MOSSES. 



Plants creeping or erect, branching, rarely 

 simple, abounding in ducts, with the leaves 

 small, numerous, crowded, entire, lanceolate 

 or subulate, 1-nerved. Fruits sessile, axillary 

 or crowded into a spike, 2-valved, containing 

 tew rather large spores, or numerous minute 

 ones appearing like powder. 



Genera 5, specieslW 1 Like the Equlsetacew, these 

 plants appear to have been very abundant in the first 

 uges of the world, and to have attained a gigantic 

 pize, although at present but a few feet in length. 

 Properties unimportant. Some are emetic. The 

 powder contained in the sporangia is highly inflam- 

 mable, and is used in the manufacture of fireworks. 



LYCOPODIUM, L. CLUB Moss. (Gr. 

 ^vicos, a wolf, Trovf, a foot.) Spore cases 

 all of one kind, 1-celled, rcniforrn, open, 

 ing transversely, 2-valveu ; spores nu- 



Ivs. scattered, incurved, capiUaceous-acuminate ; spikes in pairs, rarely in 3s, cylin- 

 drical, pedunculate ; bracts of the spike ovate, acuminate, erosely denticulate. A. 

 well known evergreen, trailing upon the ground in shady pastures and woods, 

 common. Stem and branches clothed wich numerous linear-lanceolate leaves 

 which are entire or serrulate, and end in a pellucid, curved bristle. Spikes per- 

 fectly straight, parallel, erect, and upon an erect peduncle. July. 

 2 L. complanatum L. FESTOON GROUND PINE. St. trailing ; branches dichot- 

 omous ; Ivs. ^-ranked, unequal, the marginal ones connate, diverging at apex; the 

 superficial ones solitary, appressed ; ped. elongated, supporting 4- 6 cylindric 

 spikes. A trailing evergreen, common in woods and shady grounds. Stem round, 

 creeping among the moss and leaves, often lOf in length. Branches numerously 

 subdivided, compressed, somewhat resembling the brauchlets of the cedar. Lva. 

 minute, very acute. July. 



