£04 
lucidulum. 
apodum. 
alopecu* 
roides* 
Tolgatum. 
CRYPTOGAMIA, FILICES. 
4. ii. leaves 8-rowed, linear-lanceolate, denticu- 
lated, acute, open-reflexed ; stem adscendent, 
bifid. — Willd. 
L. reflexum, Schk. 
Icon. Dill. Muse. t. 56. f. £. 
Shining Club-moss. 
In low damp or wet places, near springs in wet woods; 
not uncommon. On the Wissahickon; abundant. Perennial. 
July. 
5. L. leaves two-rowed, subrotund, ovate, acute, 
flat, denticulate; stem branched, radicating at 
the base ; spikes terminal, sessile and solitary. 
—Willd. 
Icon. Dill. Muse. t. 64. f. 3. 
A small and pretty species, growing in damp shady woods. 
Perennial. July. 
6. L. stem repent, somewhat branched ; branches 
simple, elongated, adscendent, one-spiked at 
top ; leaves linear-subulate ; base ciliate, den- 
tate, spreading; spike sessile, leafy. — Willd 
Icon. Schk. filic. 1. 160. Dill. Muse. t. 62. f. 6. 
Walking Fern. 
In boggy grounds, common. Perennial. July. 
387. OPHIOGLOSSUM. Gen. pi. 1621. 
Caf sides naked^ 1 -celled^ connate in an arti- 
culated distichal spike, 3-valved, opening 
transversely. — JSTutt. 
1. O. spike cauline; frond ovate, obtuse ; nar- 
rowly reticulated. — Willd. 
Icon. Schk. filic. t. 153. FI. Dan. 147. 
Common Mder^s-tongue. 
A singular and very rare species. I have only found it in the 
small woods immediately north of Powelton, and bordering the 
east edge of Mantua-road. Scarce there. Perennial. June. 
388. BOTRYCHIUM. Swartz, Synop. Filic. 8. 
Capsules subglobose adnate to the rachis of 
