FLORA OF THE ISLAND OF HONGKONG. " 425 
FILICES. 
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[Auctore J. Smith.) 
POLYPODIACE^, R. Br. 
. _ Tribe I. Polypodies, J. Sm. 
710. Phegopteris rugulosa, F^e, Gen. Fil. p. 24^.— Poly podium ruguhsum, Labill. Nov. IIoU. 
ToL ii. t. 241. Hongkong (Hance ! Seemann !).— v. v. Hort. Kew, 
711. Phegopteris trichodes, J. Sm,—Polypodtum trichodes, J. Sm. in Hook. Journ. Bot. vol. 
iii. p. 394 (exclus. syn. Eeinw.). Hongkong (Hance ! Seemann !).— v. v. Hort. Kew. • 
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On comparing a numerous suite of herbarium specimens of this and the preceding species, and also 
Fhegopteris ornata of India, it becomes difficult to separate them as distinct species; their modes of verna- 
tion however differ, the fronds of P. rugulosa being distantly produced (the axis being an elongating sar- 
mentum), whereas in P. trichodes they are produced in a fascicle, constituting a decumbent corm. 
712. Meniscium simplex, Hook. Lond. Journ. Bot. vol. i. p. 294. t. 11. Hongkong (Ilauce! 
Seemann!). — v. v. Hort. Kew^. 
Cultivated plants of this species often produce contracted fertile fronds, with the whole under side 
sporangiferous, agreeing in character with the Tribe AcrosticliecB, thus showing that the character of the 
sori is not alone sufficient for determining the limits of genera. If the first obsened specimens of this 
species had happened to be the state wdth contracted fronds, it would no doubt have been referred to the 
Acrostichoid genus Pcecihpteris, the natural ally of Meniscium. 
713. Phymatodes nuda, J. Sm.—Pleopeltis nuda, Hook. Ex. FL t. 63 (non Hook. Gen. Fil.).— 
Drynaria Fortunei, T. Moore, Gard. Chron. vol. for 1855, p. "08, non Kunze. Hongkong, Shanghai 
(Fortune! Tonnerrel). — v. v. Hort. Kew. 
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714. Phymatodes excavata, J. ^m. —Poly podium excavatum, Bory, Willd. L c. p. 158.— P/eo- 
pelth nuda, Hook. Gen. Fil. t. 18 (non Ex. Flora). Hongkong (Hance I) ; Macao. 
715. Phymatodes irioides, Vrcsl.—Polyjmdium irioides, Poir., 'Willd. 1. c. p. 160. Hook, et 
Grev. Ic. Fil. t. 12B.—PohjpodiianpoIycep?ialum, Wall. Scull Island (Hance !).— v. v. Hort. Kew. 
Common throughout the tropical and subtropical regions of the eastern hemisphere ; also found in the 
Island of Trinidad. 
716. NiPHOBOLus ad/iascens, Kaulf. En. Fil. p. 12 L-— Poly podium adnascens, Sw. — Polypodium 
spissum, Bory. — Polypodium pertusum, Boxb., Hook, et Grev. Ic. Fil. t. l62.—PoI}/podium vittario- 
ides, Wall. Hongkong (Hance! Seemann!),— v.' v. Hort. Kew. East Indies and Malayan Archi- 
pelago; common. 
717. NiPHOBOLUs lingua, Spreng. Syst. vol. iv. p. 45. — Acrostichum /iw^rwfl, Thunb. Fl. Jap. 
t. ZZ.— Polypodium lingua, Sw., Lang, et Fisch. Ic. Fil. t. 5. East Indies and China (Hance!).— 
V. V. Hort. Kew. 
718. Drynaria Fortunei, Kunze, Mett. Monog. Polypodium, p. 121. t. 3. Foo-chow-foo (For- 
tune ! Tonnerre!). 
In habit and general aspect this species resembles Drynaria quercifoUa, but differs in having only one 
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