16 FLORA 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-poihted, 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. 



i. L. obscurum. \ 

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

 peduncled. 

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

 L'« Leaves of 2 forms, few-ranked; stems flattened. 



1 (*-•«'" Sterile stems entirely creeping; spikes solitary. 



6. L. Carolinianum. 

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

 tered. ' 7. L. complanatum. 



1. Ltcopodium lucidulum Miehx. M. p. 24. Cold, damp woods. Summer. 



2. Ltcopodium inundatum L., M. p. 25. Sandy bogs. Summer. 



Bucks— Tullytown (Fr.). Delaware— Tinicum, Dr. Geo. Smith (Fu.). 

 . New Jersey — Common in the pine barrens. 



2o. Lycopodium inundatum Bigelovii Tuckerm. M. p. 25. Low grounds. 

 Delaware — Tinicum (P.). 



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



mer. 

 Bucks— Tullytown (Pr.). Delaware— Tinicum, Dr. Geo. Smith (Pu.). 

 New Jersey — Common in the pine barrens. 

 New Castle — Thompsons, Ogletown, etc. 



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



Philadelphia r- Wissahickon (VP.). Delaware — Swarthmore (Ws.). 

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



Burlington— Mooxestowa, New Lisbon (C). Camden — Camden, . Ateo 

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

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



New Castle— Scarce. 



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



Bucks — Milford Twp., Moyer (P.). Montgomery — Abundant at Jenk- 

 intown (Ws.). Delaware— Lansdowne (Pe.), Valley of Darby Creek (B. 

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



Gloucester— Mickleton (C). Cumberland — Millville (Je.). 



New Castle — Parnhurst. 



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



New Jersey — Prequent. 



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



thickets. Summer. 



