50 DE. H. F. IIAtrOE's srpPLEMEITT TO 



Mettenius, which, as first set forth in his ' Filices horii Lipsiensis ' 

 and subsequently amended in various other puTjlications, seem fo 

 me, with some slight modifications (such, e. g., as the reduction 

 of Phegopteris to Aspidium, and the separation oi Aihyrium itom 

 AJsplenium), to be by-far the most philosophical and carefully con- 

 sidered of any yet'propounded-^the larger genera (so much broken 

 up by 'F€e, J. Smith, Moore, and others) being preserved, and all 

 based on definite characters employed uniformly throughout the 

 whole classification — a plan which ensures, as far as practicable, 

 the equality in rank or value of the genera. 



61, Trichomanes latemarginale, Eaton; Hook, and Bah. Syn. 

 Pil. 79. 



Discovered by the late Dr. Harland and myself, in July 

 1854, growing along with JItriewlaria Sarlandi, Oliv., on the per- 

 pendicular waU-like sides of a narrow ravine near Causeway Bay. 

 Not known from elsewhere. 



*Chrys6diuin vulgaxe.F^e, Hist. Acrostich. 97. (=Acrostichum au- 

 reum, Linn. ; Benth. Fl. Hongk. 443.) 



*Chrysodium Haxlandi, mihi. ( = Acrostiehum deeurrens, Benth. Fl. 

 Hongk. 443 ; but not of Desvaux. — A. Harlandi, Hook. Sp. Fil. v. 

 274.) 



•Chrysodimn repandum, mihi. (= Acrostiehum repandum, Blume; 

 Benth. Fl. Hongk. 444.) 



62. Polybotrya marginata, Blume ; Presl, Tent. Ptendogr. 231 ; i%. 

 Hist. Acrostich. 75. (=Acrostichum (Egeuolfla) appendiculatum, 

 Willd.; Hook. Sp. Ml. v. 251.) 



In shaded ravines, but not very common. - Occurs throughout 

 the entire Indian continent, in Ceylon, the Malayan and Philip- 

 pine islands, and Cochinchina. The late Prof. Mettenius (Fil. 

 Hort. Lips. 24)) was disposed to refer this to Lomariopsis ; but he 

 included some of the forms belonging to it in Polylotrya. 



*TaBiiitis microphyUa, Mett. msc. in Kuhn, Fil. Afr. 58. (=Drymo- 

 glossum carnosum, Hook. part. ; Benth. Fl. Hongk. 444.) 

 Mr. Baker remarks (Syn. Fil. 397) that this differs from T, car- 

 nosa by the sporangia being mixed with hairs instead of peltate 

 scales ; but this is not the case in any Japanese or South-Chi- 

 nese specimens I have examined. It is obviously impossible to 

 retain Drymoglossum as a genus. 



*Lindsaya tenuifolia, Mett. in Ann. Sc. Nat. Par. ser. 4, xv. 64. ( = 

 Davallia tenuifolia, Sw. ; Benth. Fl. Hongk. 462.) 



