CIIEILANTIIES, 85 



naceous dark green distant oblong but subcordatc at the base 

 and the lower ones shortly stipitatc (only 2 or .3 of the termi- 

 nal ones decnrrcnt and continent) lobato-pinnatifid or crena- 

 to-lobate the lobes soriferous, involucres seraiorbicular 1 — 3 

 on each lobe more or less combined their edges pale submem- 

 branaceous crenate. (Tab. XCVI. B.) 



Hab. River Parana, S. Brazil, Tiveedic. — I cannot refer this to any de- 

 scribed species. In habit it approaches very small specimens of our Ilypo- 

 Icpis speclabitis, and might perhaps have l)een placed near it in (he same 

 questionable genus ; in some repects also to states of C'/i. micropla/lla : — 

 but the ramification is much more simple and uniform. Our tallest speci- 

 men (and it is only a part of a frond, 17 inches long) is not broader than 

 our specimens which are less than a span long, and all are alike bipinnate. 

 The lower pinnules are shortly petiolate or stipitate. The caudex creeps 

 considerably, and is scarcely tliicker than a crow-quill. — I have received 

 this plant only from Mr. Tweeilie. 



15. Ch. Seemanni, Hook.; roots tufted, stipites 3 — 6 inches 

 in length scaly below with black subulate scales and as well 

 as the general and partial rachis ebeneous-purple, fronds gla- 

 brous submembranaceous dark green about equal in length 

 to the stipes oblong-lanceolate bipinnate, primary pinnae ra- 

 ther distant oblong acuminate patent, pinnules often quite 

 opposite horizontally patent oblong sessile and decurrent so 

 as to form a narrow wing on the rachis lobato-pinnatifid, lobes 

 or segments equal in size generally one or two moi*e on the 

 n])per margin, all soriferous, involucres one on each lobe se- 

 miorbicular membranaceous pale brown all free and distinct. 

 (Tab. XCVII. A.) 



Hab. Sierra Madre, N.W. Mexico, Sccmann: — came mixed with ?j. lf)31 

 (C/i. inicrophi/l[a,Sw.) — At first sight this resembles Ch. Ttceediana, but 

 the pinnae will be found very different, and the deep segments or lobules 

 of the pinnules, more in number on the upper margin than on the lower ; 

 each lobule bears a distinct sorus at its apex, covered while young with a 

 semiorbicular membranaceous and diaphanous involucre. Although mixed 

 with Ch. microphylla, there is no diffunilty in separating the one from the 

 other. 



16. Ch. Morilziana, Kze.; stipes 5 — 6 inches long ebeneous 

 glossy ferrugineo-paleaceous at the base, frond ovato-lanceo- 

 late acuminate a span to 10 inches long firm rigid yet some- 

 what membranaceous dark green glabrous 3 — 4-pinnate or 

 tripinnato-pinnatifid, the ultimate pinnules oblong-cuneate 

 slightly lobed or toothed, ])artial and universal racbises jnibes- 

 centi-scabrous, involucres small generally formed of the invo- 

 lute apex of a single lobe rarely subconfluent. (Tab. XCIX. B.) 

 Kze. in LinncBa, 1850. p. 244 et 307. C. elongata, Kl. MSS. 



VOL. II. N 



