5 
stipiteque brevi graeilibus, Alropurpureis, parce rufo-iomen- 
tosis; rhizomate hreviter ramoso, repente, ferrugineo-pa- 
leaceo, 
Pteris Alabamensis J. Tuckerman ia Sillim,. Amer, 
Joarn. Juli 1843. p. 177. Plant. exsice. Rugelianae No. 28, 
In rupibus caleareis Auvii Tennessee - River ad castellum 
Muscle Shoals, Alabama (Tuckerman); ad Capville, Geor- 
giae superioris (Hb, Shuttleworth); ad rapes in ripa fav. 
French -Broad-River, Tennessee (Rugel, t, Shuttleworth), 
E sporis filic. Rugelianae planta a. 1844 prodiit et se-. 
cundo anno frondes fertiles tulit, 
Species distinela, ex aflinitate Ch. microphyllac Sw. et 
Linkianae menae. 
55. Cheilanthes Preissiana Kze. in Lehm, pl. Preiss, 11, 
p. 112, 
Sporae Äilieam Preissianaram et hanc speciem, caso qui- 
dem, a, 1843 dederant, quam olim Ch. ambiguam esse pu- 
tavi. A. 1844 frondes fertiles enatae sunt, 
Adn. Adiantum cardiochlaena Kze. (pug. 11.), guod 
in horio obiit, teste speeimine in Hb. Willd, 20,104. est 
Ad, polyphyllum W.; Ad. polyphyllum vero in syn. mea 
fil. Poeppig. (Linnaea IX. p. 82.) A. macrocladum Klotzsch 
(Linoaea XVII. p. 554.). - 
56, Davallia (Selenidium) divergens Kze., fronde mem- 
branacea, utringue sparsim pilosa, (riangulari- ovala, ace- 
minata, bi-tripinnato -pinnatifda (ampla); pinnis petiolatis, 
alternis, remotis pinnulisgue primariis, basi inaegnaliter 
cuneato -decurrentibus, oblongis, acuminalis, obtasiuscenlis, 
seenndariis approximatis, trapezio-ovalis, ohtusis, derurren- 
ibus, inciso-pinnatifdis; laciniis falcatis, obtnsis, crenatis, 
basi superins sorophoris, pinnsla ima superiore majorez 
rhachibus partialibus versus apicem ımarginatis et oniversali 
