CRYPTOGAMiA FiLiGES. Chcilanthes. 
On rocks : Pensylvania to Virginia and on the Missouri. 
11 . July V. V. A handsome very small fern, covered 
with long brownish hair. 
2. C. frondibus triplicato-pinnatis, pinnulis ovalibus distinc- 
tis apice crenatis aut emarginatis subtus dealbatis. 
On rocks, on the banks of the Missouri, 11. July. v.s. 
A very delicate small fern, very much resembling 
C. tenuifolia. 
735, DICK SONIA. L'Herit. sert. avgl. 30. 
1. D. frondibus bipinnatis, pinnulis oblongo-lanceolatis pin- 
natihdis, laciniis margine superiore inciso-dentatis, ra- 
chibus pilosiusculis. JVilld. sp. pi. 5. p. 484. 
D. Dubescens. Schkuhr Jilic. p. 125. t. 131. 
Polypodium pilosiusculum. Muhib. in Hit. 
In shady woods, among rocks ; Pensylvania and Virginia. 
'll. V. V. A foot or more high, resembling /Ispidium 
dilatatum. 
736. HYMENOPHYLLUM. Smith act. taur. 5. p. 418. 
1. H. frondibus pinnatis, pinnis infimis majoribus, supe- 
rioribus sen'iim minoribus pinnatifidis, laciniis lineari- 
bus obtusis bifidis ciliatis, venis hirtis, rachi stipiteque 
alatis ciliatis. JFilld. sp. pl 5. p. 519. 
Trichomanes ciliatum, Swartz, prodr. 136. 
In shady forests, on the trunks of old trees ; Pensylva- 
nia and Virginia. 1/ . v. v. 
V. HYDROPTE RIDES. 
737. ISOETES. Gen. pl. 1620. 
J . I. frondibus subulatis semiteretibus. Willd. sp. pl. 5. 
p. 534. 
Icon, Schkuhr Jilic. t. 1 73. FI. dan. I91. Dill. muse. 
LSO.f.X. 
On rocks, on the bottom of rivers : New York, in the 
Oswego river, near the Falls. %. v. v. This sin- 
gular plant, resembling a zoophyte, is about two inches 
high. 
dealbata. 
pilosiuseula. 
ciliatum. 
lacustris. 
