GO. ACnOSTICIIUM, **** t GYMNOl'TERIS. 419 



C. Barren fronds copiously pinnate. Sp. 101-107. 



101. A. (Gym.) rcpandum, Blume ; 5^ of barren fr. G-12 in. 1., naked ; barren 

 fr. 1-2 ft. 1., 8-12 in. hr., sometimes elonijated ami rooting, witii numerous pinnce 

 on each side, the lower ones 4-(5 in. 1., |-1 in. br., the edge with entire blunt lol)es 

 reaching a quarter of tlic way down ; texture herbaceous ; rachis and both sides 

 naked ; main veins distinct ; areolce copious, without free veinlets, the sinuses 

 often setose ; fertile pinnce 2-3 in. 1., 2-3 lin. br., stalked, entire or repand. — 

 Hk, Sp. 5. p. 200. — /3, A. Quoyamim, Gaud. ; pintice lobed lialfway down or 

 more, the lobes toothed. — Hi;. Sp. 5. p. 259. C. bipinnatifidum, J\Iett. 



Hab. South China, Bonin, Philippine, Malay, and Polynesian Lsle.s, New Caledonia, 

 Queensland, Seychelles. — The two varieties seem to be connected by gradual interme- 

 diates. A', anjutum, F<Se, is probably this in an undeveloped condition. 



102. A. (Gym.) puncttilattim,Sw.', rhizome firm, wide-creeping ; st. of barren 

 fr. ()-12 in. 1., slightly seal}', the latter 12-18 in. 1., often 1 ft. br. with a terminal 

 pinna and 1 to 8 on each side, which are 4-9 in. 1., 1-2 in. bi\, lanceolate or 

 oblong, narrowed at both ends, the edge entire or repand ; texture i)apyraceous ; 

 rachis and both sides naked ; main veins pinnate, with copious hexagonal areolae 

 between them without free veinlets ; fertile fr. on a longer slender stem with 

 similar but much smaller pinnte. — Hk. Sp. 5. p. 258. A. punctatum, Linn. 



Hab. Mascaren Isles, Zambesi-land, Guinea Coast, Angola. 



103. A. (Gym.) suhrcpandum, Hk. ; rhizome woody, wide-creeping ; st. of 

 barren fr. stout, erect, nearly naked ; barren fr. varying from simple, 1 ft. 1., 

 1^-2 in. br., to 2 ft. 1., 1 ft. br., copiously pinnate, with several linear-oblong 

 entire or subrepand ;»^2rtHce on each side, which are sometimes 6-1) in. 1., 2 in. br. ; 

 texture subcoriaceous ; surfaces and rachis naked ; main veins distinct nearly to 

 the edge, with copious areola; with free veinlets between them ; fertile fr. like the 

 others, but smaller. — Hk. Sp. 5. p. 275. A. GoUingeri, Kze. 



Hab. Luzon, Cuming 225 ; Penang, Sir W. Norris, Mactier, — Very near the last, but 

 firmer in texture. 



104. A. (Gym.) alienum, Sw. ; rhizome woody, short-creeping ; st. 6-18 in. 1., 

 scaly downwards ; barren fr. 1-2 ft. 1., often 1 ft. br., the upper part deeply 

 pinnatifid, with lanceolate lobes, the lower part pinnate, with entire or deeply 

 ])innatifid lower pinnee, the lobes sometimes reaching more than halfway down to 

 the rachis ; texture papyraceous ; rachis and surfaces naked, a distinct midvein 



in each of the lobes ; areolce copious, irregular, with free veinlets ; fertile fr. / 

 much smaller, with distant narrow linear or pinnatifid leafy pinnae. — Hk. Sp. 5. 

 p.272.—(3, A.semipinnatifdum, Hk. ; areolce with few or no free veinlets. — Hk. Sp. 

 6. p. 273. 



Hab. Cuba and Mexico to North Peru and the Amazon Valley. — This and the next 

 are the American analogues of the three preceding. Mettenius (Annale«, 5. ser. vol. 2. 

 p. 204) has two closely allied species from New Giauada under the names oi Chrysodium 

 opacum &nd j^clluccns. 



105. A. (Gym.) nicotiancefolium, Swz. ; r^z^o?«c woody, wide-creeping, scaly; 

 St. ]|-2 ft. ]., scaly below ; barren fr. 1-3 ft. 1., often 1 ft. br., with a large 

 terminal pinna and 1-3 lateral pairs, which are 6-12 in. 1., 1-3 in. br., the apex 

 acuminate, the edge entire or nearly so, the base slightly rounded or subcuneate ; 

 texture papyraceous or subcoriaceous ; rachis and surfaces naked ; main veins i 

 distinct to the edge, witli transverse veinlets, with cojdous fine areolce with free 

 veinlets between them ; fertile pinnce distant, 3-4 in. 1., |-1 in, br. — Hk. Sp. 5. 



p. 275. G. F. t. 26. 



Hab. Cuba to the Amazon Valley. 



