HOorsETAIL. 
Plants 4 dm. or higher; branches linear, developing 
after fructification ; branchlets reflexed; sheaths loose, 
spreading, about 2 cm. long including the free, brown- 
ish, blunt teeth; spikes oblong, acute, 1-3 cm. long. 
Reported from this region, but I have never seen it in 
localities south of New York. Jf. 7. H. Painter has 
collected it in Chester Co., Pa. 
27, LYCOPODIUII Dodon. 1567, 
Muscum terrestrem non pauct hac aetate appellant: 
Germant Beerlap, Gurtelkraut, Seilkraut, Haar- 
shar, Teuffels Klauwen: Belgae Wolfsclauwen ap- 
pellant: unde Lycopodium & Pes lupi a nobts dicé 
coepit. Dodon. 1583. Stirp. Hist. 470. 
Mosslike perennials with creeping or erect stems of 
variable lengths. Leaves small, simple, imbricated or 
4-many-ranked. Sporangia borne in the axils of the 
leaves. 
t Leaves of one kind. 
* Sporangia borne tn the axils of ordinary leaves . 
§ Leaves ascending or appressed. 
1. L. selago L. 
Lycopodium selagol. Sp. Pl. 1102. Eaton, in 
Gray, Man. 695. Underw. in Ill. Fl.1: 40; Nat. 
Ferns 130; in Britt. Man. 24. Clute, Fern Allies 
112. 
57 
