414 CLASS XXIV. ORDER L 



tinguishable from the leafy stem below them. — On rocks and 

 dry hills, 



LvcopoDiuM OBscuRUM, L. RacUatcd Club Moss. 



Erect ; branches spreading; leaves in six unequal 

 rows; spikes one or ^ew, solitary, sessile. 



The shoots of this species are erect, ascending at base, covered 

 with small, imbricated, lanceolate leaves. Branches alternate, 

 dividing by successive forks, the branchlets diverging like rays 

 from a centre. Leaves in six rows, those of the lateral rows 

 longest. Spikes terminal, solitary, sessile, cylindrical. Like 

 others of the genus, they give out, when ripe, a great quantity of 

 minute seeds, resembling a fine, yellow powder, and very inflam- 

 mable. — Woods. — Perennial. 



Lycopodium dendroideum. Mx. Tree Club Moss. 



Erect ; branches erect ; leaves in six equal rows ; 

 spikes numerous, solitary, sessile. 



Commonly quoted as a synonym of the preceding, but very 

 distinct. The branches are always erect, and appear cylindrical 

 from the equality of the leaves, whereas in the former they are 

 spreading and appear flat from the unequal rows of leaves. 

 Spikes in this numerous, in the other most frequently one. — 

 Woods, Sudbury. 



Lycopodium selago. L. Fir Club 3Toss. 



Leaves scattered, entire, lanceolate, awnless, in 

 eight equal rows ; stems dichotomous, erect, fastigi- 

 ate ; fruit axillary. 



A dense, leafy species, distinguished from the following by its 

 smaller size and entire leaves, while it resembles it in being des- 

 titute of spikes, the capsules growing in the axils of the leaves. 

 — On the highest summit of the White mountains. 



Lycopodium lucidulum. Mich. Shining Club Moss. 



Stems assurgent with a {ew Jongish branches; leaves 

 spreading, shining, linear-lanceolatC; serrate; fructifi- 

 cation axillary. Mich. 



