104 C'lIKILANTHKS. 



(Rack is zigza(j). 



49. Ch. dichotoma ; roots tufted, plant wholly glabrous, 

 stipitcs (4 — 6 inches long) as well as the zigzag rachis slen- 

 der ebeneous glossy, fronds a span to a foot long oblong 

 tri-quadrii)innate, tertiary pinnae often trifoliolate, pinnules 

 sparse remote small cordate or ovate subtrilobate or inciso- 

 pinnatifid ultimate lobes often cuneate, each bearing 1 — 3 — 4 

 free rounded small involucres ])ale at the apex, often conflu- 

 ent. (Tab. ClI. B.) Swartz, Sijn. Fil. p. 129 and 335, t. 3, 

 f. 7. Willd. Sp. PL V. p. 5(i0. Hypolepis trifida, Klolzsch, 

 in Herb, nostr. 



Hab. Mount St. Antonio, Quito, Nee, (Swartz). Brazil, Sellow, from 

 the Royal Berlin Herbarium. Urufruay, 3Tr. Jas. Baird, in Herb, 

 nostr. — Our first knowledfre of ibis plant is from Swartz, who describes 

 and fijrures it from Quitinian specimens, gathered by Luis Nee. Dr. 

 Klotzsch, unaware of that description, has given it as a new species 

 of Hypolepis. It is, however, a true Cheilanfkes, according to our view 

 of the Genus, and very different from any other species known to me. 

 The roots are densely tufted, as well as the stipites. Stipes and very 

 zigzag and extremely slender capillary rachises glossy ebeneous, plane on 

 the upper surface and margined : lower part of the stipes only scaly. The 

 fronds are quite glabrous, a foot long, primary pinnules elongated, second- 

 ary and tertiary shorter, pinnules often teruale (whence probably the name 

 trifida), small, sparse, not much unlike the smallest leaflets of Thalictrnm 

 alpinum. The species is probably quite confined to South Brazil ; and it 

 is more than likely that the Quitinian locality given by Swartz has origi- 

 nated in some error. 



50. Ch. Jlexuosa, Kze. ; " frond rigid subcoriaceous pu- 

 berulous ovate-oblong acuminate at the base quadri- tri- or 

 bipinnate less divided at the apex, primary pinnae opposite 

 or alternate petiolate (ad tripinnatis), lower ones arrect or 

 patulous upper ones patenti-divergent, ultimate pinnules 

 petiolate suborbicularo-ovate crenate or incised, sori of few- 

 capsules, involucrc^s spurious, partial rachises rigid furrowed 

 above rough flexuose slender purple-black, universal rachis 

 short stout purple-black shining, rhizoraa horizontal clothed 

 with subulate appressed brown scales." Kunze, in Linncea, 

 t. 22, p. 578. " Ch. microphylla," Bongard in litt. {non Sw.) 

 — 0. minor ; contracted biinnnate. Kze. I. c. 



Hab. Brazil ; Cape Goyan, Po/t/, Riedel. — /3. Minas Geraes, in very 

 sterile places, Regnell. — " Plant with a habit between Ch. dichotoma and 

 Ch. chlorophi/Ua, but readily distinguishable. It ordinarily attains a foot 

 in length ; the dwarf stale only about 2 inches." Kze. 



(Fronds broad triangular. — See Ch. triangula, at p. 91). 



51. Ch. viacosa, Link ; an Kaulf.? roots tufted, stipes with 



