CVSTOl'THKIS. 201 



blackish color. The form of the pinnae ami segments approaches that of 

 C. bulbifera, but they are broader, uiul much less divided. The fructilica- 

 tion, though old, is clearly that of a Ci/stopteris. 



8. C. albescens, lAuli-y "IVoiul tripinnatifid its outline lan- 

 ceolate, ])innule.s oblong inciso-])innatifKl crenulate with mi- 

 nute hairs on the su])erior surface attenuated at the base." — 

 Link, Fit. Horl. Jierol. p. 47. 



Hab. Iceland ? (Link). — " Fronds scarcely 3 inches high, pinnae about 6 

 lines long, lower ones inciso-pinnatilid, upper undivided confluent; sori few 

 lateral." — Of this I know nothing. The learned author compares it with 

 Jli/vu'jwet/:itis, Mcy., but the " sori are not surrounded on all sides by the 

 involucre." 



9. C. squamata, Decne. ; " fronds tripinuate on both sides 

 as well as the stipes and rachis glabrous, pinna; stipitate 

 ovate or ovato-oblong, })innules ovate towards the a])ex ])iu- 

 natisected, the segments rather obtuse, involucre small round- 

 ish, capsules stipitate, sori verrucose, rhizoma creejjing scaly, 

 scales ovate peltate brownish." — Decne. in Jacqueyn. Joy. 

 Bot. p. 178. 



Hab. Cashmere, between Carli and Candahar, Jacr/uonnnt. — The above 

 character, quoted from the Voyage of Jaequemont, is all we know rela- 

 tive to this plant, and is quite insulHcient for its determination. 



Doubtful Species, together with some that can he referred to other Genera. 



C. ohtusa, Prcsl, is IVoodsia ohlusa of this work, p. 62, 

 (Aspidium obtusum, Willd.) 



C. obovata, Pr. — The author gives this as the Aspleniiim 

 obovaium of Viviani, and as such it is figured in Hook, et 

 Grev. Ic. Fil., with the true fructification of an Aspleniunt. 



C. alovmria, Pr. (Asi)idium, Muhl. et Willd.) — I have 

 quoted this doubtfully under C. fracjilis, B. dentata ; but I 

 must acknowledge that 1 have never seen any authentic ]ilant 

 under that name, and can only judge from the locality and the 

 description. I think Willdenow would have included it un- 

 der his Aspidium lenue, had he been acquainted with that 

 species at the time he received the specimens and name from 

 Muhlenberg. 



C. emarf/inata, Pr. Tent. Pterid. p. 93 ; name only. 



C. IcptophijUa, Pr. (Lonchitis tcnuifolia, Bei/ricli''s Herb.) 

 As Beyrich's plants were, 1 believe, chiefly from N. America, 

 this will probably ]>rovc one of the many varieties of C.fra- 

 gilis. Name only given. 



C. atrovirescens, W\ (C'ystopteris sp. Hart. Bot. Berol.) 

 Name only. 



p 



