256 CHINA. [Filices. 



1. Polypodium (Phymatodes) quercifolium. L. 



2. Polypodium (Phymatodes) subtriphyllum ; fronde triangulari subtus puberula 3-5- 

 foliolata, foliolis inferioribus petiolatis basi inaequalibus terminalique triangulari-ovatis 

 acuminatis pinnatindo-lobatis lobis infimis acuminatis reliquis obtusis, foliolis intermediis 

 (si adsint) lanceolatis acuminatis sinuato-pinnatifidis, soris submarginalibus copiosis. 

 (Tab. L.) 



Hab. Macao ; Vachell— This species has the closest resemblance in general structure to the Aspidium 

 trifoliatum, Sw. Presl ; but the copious specimens are in all stages destitute of involucre, which, in the 

 Aspidium, is large and persistent. 



Tab. L. Polypodium subtriphyllum. Fig. 1. Portion of the frond :— magnified. 



3. Polypodium (Pleocnemia) Leuzeanum. Gaudich. in Freyc. Voy. Bot. t. 6. 



1. Aspidium (Nephrolepis) fo'semrtwm. Sw — (3. subhirsutum. Asp. hirsutulum. Sw.— 

 Schlech. t. 33. 



Hab. Macao, &c. ; Vachell. — Involucre almost entirely orbicular. 



2. Aspidium (Nephrolepis) exaltatum. Sw. 



Hab. Macao ; Vachell. — Involucre lanceolate, opening towards the apex of the pinna. 



3. Aspidium (Nephrodium) unitum. Br. (vix Sw.) — Aspidium pteroides. Sw — Of 

 this there are two varieties, as we believe them to be; the one larger, with more 

 membranaceous fronds ; the other smaller, with subrigid fronds ; and of this latter the 

 pinnae vary much in breadth. 



4. Aspidium (Nephrodium) resiniferum. Kaulf. — Hook, et Am. supra p. 105. — Per- 

 haps too nearly allied to A. (Nephrod.) propinquum, Br. Prodr. p. 148. 



5. Aspidium (Nephrodium) molle. Sw (3, glabriusculum.—y, paucisorum; fronde 



latiori soris solummodo in venulis infimis. — This may prove to be a new species, having 

 broader fronds than is usual in A. molle; and in several specimens gathered by Messrs. 

 Lay and Collie, as well as in a Chinese specimen in our herbarium from Prof. Lindley, 

 the sori are entirely confined to the lowest veinlets, thus forming 2 parallel lines nearly 

 the whole length of the pinnae, one on each side the costa. 



1. Asplenium Nidus. L. 



1. Digrammaria ambigua. Presl. — Asplenium ambiguum. Sw. Willd. — Diplazium 

 Malabaricum. Spr. 



Hab. Lappas Island ; Vachell. 



1. Pteris costata ; pinnata glabra, pinnis linearibus sessilibus basi inaequaliter cordatis 

 minutissime cartilagineo-serratis. (Tab. LI.) Bory. — Willd. Sp. PL v. b.p. 367. 



Tab. LI. Pteris costata. Fig. 1. Fertile pinna? ; fig. 2. Portion of sterile do. -.—magnified. 



2. Pt. serrulata. L. 



