52. GTSDiOGBAMltE, §§§§§ CEBOPTERia 3S5 



only the lovest toothed ; poader bright-yellow. — y, G. omithctpterU, Klotzsch ; 

 tacture more coriaceous, edges of the diyisions incurved ; powder white or yellow. 

 — Hkj- Sp. 5. p. 148.— 5, G. SteUsaari, Koch ; fir. elongated, flacrad ; piimce 

 lanceolate, subdistant ; powder yellow, thin ; li. and raehis pubescent. G. Bou- 

 cheana, 2f<tt. 



Hab. Tropical America. — ^There is no dear line of distinction between tlua and tiie 

 pieceding. The forms associated here di&r mainly fiom those placed nnder ea2oneiam» 

 bj^ being finner in teztore and less divided. O. gaiaaaixa, Klotzsch, corner between 

 a and y, and 0, adiiaiioida, Kaist., is said to differ from 3 by its sablanceolate outline 

 and acominate plnnule& We cannot distingnish &om G. odvacea a plant gatiiered by 

 Genard in NataL 



54. G. (Cerop.) ealomelanos, Kaulf . ; St. tufted, firm, 6-12 in. L, nearly black ; 

 '^. 1-3 ft. L, 6-12*in. br., oblong-deltoid, tripinnatifid ; pimuB dose, lanceolate, 

 the lowest the largest, sometimes 6 in.-L, li-2 in. br. ; lower pinnl. distinct, 

 lanceolate or subdeltoid, often cut down nearly to the raehis ; texture snb- 

 coriaceons or herbaceous ; powder white. — St. G. F. t. 30. — ^, (?. fermeicata, 

 Desv. : fir, smaller ; St. and raehis castaneons ; lower pinnw deltoi i ; lower 

 pinnl. oficn cut down to the raehis. — ;, G. rityiophplia, Kaulf. : size and habit 

 of ft but the raehis darker and the powder bri^t yellow. — jdi. >y>. b.p. 148. 



Hab. West Indies, sonthward to Kio Janeiro, Fern, and Samoa ; Topical West 

 A£rican TalanHs — ^We inclride here a wide range of forms connected by Tery gmdnai 

 intermediate stages. G. L*Hermimei% Martifuiij and Mtusoni of Link, and C inter- 

 media, F4e, are all intermediate between a and y. The Polynesian plant is G. Braekenr 

 ridgei of Caimthers. 



55. G. (Cerop.) ptddeBa, Linden ; st. tufted, firm, 6-9 in. L, dark chesnut- 

 brown, powdery ; fi: 6-12 in. 1, 4-6 in. br^ oblong-deltoid, tripinnatifid ; lower 

 pimtw tiie largest, lanceolate-deltoid; pinnl. imbricated, the lower ones sub- 

 deltoid ; seffm. flabeUato-cnneate^ ofUai ^ in. br. ; texture herbaceous ; powder 

 pure white,— Si. Fil. Ex. t. 74. 



Hab. Venesnela. — Joined in " Sp. FiL" to 6. salpkurea, from whidi it differs by its 

 more robnst b^if^ white powder, and frond broadest at the base. It comes very near 

 G. penmana. Tar. WettenJiailiaHa, Moore, is a garden variety, with pale snlphnr^ 

 coloured powder. 



56. G. (Cerop.) sulphurea, Desv. ; «{. densely tufted, 1-6 in. 1., generally 

 short, slender, chesnnt-brown, often powdery ; ^. 6-12 in. L, 3-4 in. br., ovate- 

 lanceolate, tripinnatifid ; pinnw lanceolate, the lower ones gradually reduced ; 

 pitmL flabellately cut, with entire or cleft cnneate segm. 1-1^ lin. br. ; texture 

 herbaceous ; powder bright yellow. — Hi. Sp. 6. p. 147. 



Hah West Indies. — ^DistingniBhed by ita cntting; small size, herbaceous texture and 

 frond narrowed in the lower third. 



57. G. (Cerop.) argentea, Mett. ; «(. tufted, slender, 3-6 in. 1., chesnut-brown, 

 glossy ; fir. 6-12 in. 1., subdeltoid, quadripinnatifid ; pinna not numerous, often 

 distant, deltoid, the lower ones 3-4 in. 1., 2 in. br. ; pinnl. and segm. deltoid, 

 the ult. divisions small, flabeUato-cuneate ; texture herbaceous ; powder white 

 or tinged with red ; sori pale-brown. — G. conspersa, £ze. HI. /§>. 5. p. 147. 

 G. farinosa, Bqjer. G. rosea and Thiebautii, Desv. 



Hab. Uascaren Isles and Natal. — G. c::jfpersa, Kze., appears to be a slender flaccid 

 form of theMaacaren epecies. G. avyfa. Daiv. < Aerostidmm, Boiy), is a variety with 

 yellow powder found in Madagascar, Bonrbon, and Angola, 



