684 FILICES. 



o. cirrhatum, Rich. Primary segments undivided or pinnatifid below, dimidiate-truncate 

 or upwards auricled at the base, l"(-2") long, 3"'(-6"') broad.— Hook. Spec. t. 187- A. B. 

 Metten. Fil. Lips. t. 10. /. 3. 4 : passing into j8. — A. rhizophorum, Sw. Synops. A. Kar- 

 stenianum, Kl. (PI. Lechl. 2295). 



0. radicans, Sw. (sec. Moore). Primary segments pinnatipartite-pinnatisect, 3" long, 

 8"'-12'" broad, secondary undivided, serrulate.— SI. t. 52./. 3. Hook. Spec. t. 187. C— 

 A. rhizophorum, Sw. Obs. Camopteris rhizophylla, Sw. {ex Tc. SI.). 



y. cicutarium, Sw. (non Metten.). Primary segments pinnatisect, secondary pinnatifid 

 or pinnatipartite at the base: proportions as in /3. — Hook. Spec. t. 187. L). — A. rhachi- 

 rhizon, Radd. (PI. Spruce. 4021). A. flabellulatnm, Kze. (PL Moritz.) : the homonym 

 in PI. Lechl. 2029, is var. 8. (secondary segments pinnatipartite to the cuueate summit), 

 from which I know not how to distinguish but by short sori A. rutaceum, Metten. (Plum. 

 Til. t. 57 ; Hook. Cent. 2. t. 34). 



Hab. Jamaica !, Mac/., Pd., Barter, (a, 0, y) • Trinidad I, Cr. ; [Cuba ! and Mexico ! to 

 Brazil ! and Peru !]. 



210. A. cuneatum, Lam. Leaf 2-pinnatisect : primary segments oblong-lanceolate, 

 lowest conform, secondary cuneate-obovate, dentate above, lower 2-partite-lobed at the base: 

 rhachis devoid of a membranaceous margin : veins simple, lower forked : petiole pale or 

 brown ; sori linear, intermediate between the midrib and the base of the teeth.— S/-^ *"■ 



/. 2. Schk. Crypt. I. 78. dextr.—A. martinicense, IT.— Ultimate segments 3"'-6' long, 

 2"'-3'" broad.— Hab. Jamaica !, Macf. ; S.Vincent!, Guild.; Trinidad!, Cr.; [Cuba! to 

 Brazil, and other tropical countries to the Cape]. 



211. A. Fadyeni, Hook. Leaf 2-pinnalisecl below, pinnatisect above: primary seg- 

 ments oblong-lanceolate or lanceolate, lowest conform, secondary cuneate-obovate, dentate 

 above, lower 3-partite at the base: rhachis slender -. veins simple, lower forked ; sort ob- 

 long, intermediate between the midrib and the base of teeth : indusium broad. — Hook. Cent. 

 2. t. 27. — Little known, and to be compared with A. rhizophorum, from which it differs by 

 the rhachis not beiug proliferous ; habit of the preceding, but sori short. — Hab. Jamaica ., 

 Macf. 



212. A. myriophyllmn, Spreng. Leaf 3(-2)-pinnatisect : primary segments approxi- 

 mate, divided to the base, lowest much decrescent, ultimate cut into lanceolate or ovate, 

 rounded-pointed lobes: rhachis green-margined or winged: veins simple: petiole pale or 

 pale-brown ; sori half-elliptical or shortly oblong, entering; into the lobes. — Hook. ben. 

 t. 6 ; Cent. 2. t. 41. Metten. Fil. Lips. t. 13. /. 3-9.— Camopteris, Sw. A. cicutanum, 

 Sieb. Mart. 360, Hook.!, Metten. (non Sw.). A. monteverdense, Hook.! A. rhizophyllnm, 

 0, Hook. ! A. dissectum, Lk. — Ultimate lobes 1'" or less long ; sori usually less than 1 

 long. 



o. Leaf 3-pinnatisect. 



0. Macrcei, Hook. Grev. Leaf 2-pinnatiseet.— Hook. Grev. Lc. t. 193 and 217. A. rhi- 

 zophyllum, Kze., Hook. a. (exclus. syn. Si. and Sw.) : leaf not proliferous at the summit ^ 



Hab. Jamaica!, all coll.; Dominica!; Trinidad!, Woodford; [United States; Cuba, 

 and Mexico ! to Brazil ! ; Pacific islands ! ; trop. Africa ! to the Cape !]. 



213. A. adiantoides, Radd. Leaf %-pinnatisect : primary and secondary segments 

 distant, petiolulate, ultimate cuneate-rhomboid, lobed and dentate above with roundeu- 

 pointed teeth •. rhachis slender, devoid of a membranaceous margin : veins simple : petw 

 pale or pale-brown ; sori oblong, distant from the midrib, and more so from the point o 

 lobes.— Radd. Fil. Bras. 1. 51. /. 2.— Ultimate segments 4"'-7"' long.— Hab. Jamaica., 

 Macf. [Brazil!]. 



Sect. 2. Diplazium, Sw. — Inferior or most sori double. 

 * Leaf undivided : veins dichotomous. 



214. A. plantagineum, L. Leaf oblong-lanceolate, pointed, cuneate at the base, 

 seriate above or subentire: veins costate, dichotomous, terminated near the margin, petio e 

 slender, pale ; sori linear, uuequal in length, often alternately distant from the midrib, in- 

 ferior double. — Schk. Crypt, t. 85. sin. Hook. Gen. t. 55. B. f. 1. — Diplazium, Sw. 



