16 FLOBA OF PHILADELPHIA. 



Sporanges mostly wanting in the axils of the upper, mostly 8-ranked 



leaves. 1. L. lucidulum. 



Sporanges only in the axils of the upper leaves, forming terminal 

 spikes; leaves many-ranked. 

 Plant slender; leaves acute, soft, mostly entire. 



2. L. inundatum. 

 Plant stout; leaves narrow, spinulose-pointed, bristle-toothed be- 

 low the middle. 3. L. alopecuroides. 

 Sporanges borne in the axils of yellowish ovate or cordate scale-like leaves, 

 which are very unlike those of the sterile stems. 

 Stems leafy up to the base of the spike or nearly so. 



4. L. dbscurum. 

 Fertile branches with minute leaves so that the spikes appear long- 

 peduncle d. 

 Leaves imiform, many-ranked; stems terete. 5. L. clavatum. 

 ') Leaves of 2 fomis, few-ranked; stems flattened. 



Sterile stems entirely creeping; spikes solitary. 



6. L. Carolmianum. 

 Sterile stems vidth fan-like ascending branches; spikes clus- 

 tered. 7. L. complanatum. 



1. Lycopodium lucidulum Michx. M. p. 24. Cold, damp woods. Summer, 



2. Lycopodium inundatum L. M. p. 25. Sandy bogs. Summer. 



^wcA-s— TuUytown (Fr.). DeZaware— Tinicum, Br. Geo. Smith (Fu.). 

 New Jersey — Common in the pine barrens. 



2a. Lycopodium inundatum Bigelovii Tuckerra. M. p. 25. Low grounds, 

 Delaware — Tinicum (P.). 



3. Lycopodium alopecuroides L. M, p. 25. Pine-barren swamps. Sum- 



mer. 

 ^Mcis— Tullytown (Fr.). Delatvare—Tinieum, Dr. Geo. Smith (Fu.), 

 New Jersey — Common in the pine barrens. 

 New Casiie— Thompsons, Ogletown, etc. 



4. Lycopodium obscurum L. M. p. 25, Moist woods. Summer. 



Philadeli)hia — Wissahickon (VP.), Z)etat(;a?-e — Swarthmore (Ws.), 

 Chester— (P.). Lancaster— (P.). Northampton— (P.). 



Burlington— Moovestovfn, New Lisbon (C). Camden— Camden, Atco 

 (C), Clementon (VP.). Gloucester— Swedeshovo (Li.). Salem— Woods- 

 town (Wa.). Atlantic— Hammonton (C). 



Neiv Castle — Scarce. 



5. Lycopodium clavatum L. M. p. 25. Woods. Summer. 



Buds— MiUord Twp., Moyer (P.). Montgomery— Kbxmdant at Jenk- 

 intown (Ws.). Detoua^e— Lansdowne (Pe.), Valley of Darby Creek (B, 

 Sm.), Tinicum (W. Tr.). Chester — {P.). Lancaster— {P.). 



Gloucester— M.\ck\eton (C), Cumberland — Millville (Je.). 



Neio CasiZe— Farnhurst. 



6. Lycopodium Carolinianum L. M. p. 26. Wet pine barrens. Summer. 



New Jersey — Frequent. 



7. Lycopodium complanatum L. Ground Pine. M. p. 26. Woods and 



thickets. Summer. 



