340
5. Lower pinnae forked ... Lower pinnae once or more pinnatifid
••
broad
6.
Sterile pinnae nearly 1 inch
7.
Sterile pinnae J inch broad, or less Pinnae serrate, apex acute
8.
9.
10.
"•
...
•••
•••
...
7.
3.
Pinnae subcrenate, apex often obtuse... ... Sterile pinnae ^ to i inch broad ... Sterile pinnae f to i inch broad ... Lower pinnae simply pinnate ... Lower pinnae tripinnate or bipinnatifid Lower pinnae pinnate on lower edge only Lower and upper pinnae completely
Lower pinnae Lower pinnae
tripinnate ... bipinnatifid ... 12. Fertile and sterile fronds dissimilar ... ... Fertile and sterile fronds similar ... 13. Middle pinnae 2 to 3 inches long Middle pinnae 5 inches long or more... 1.
8.
...
pinnate 11.
6.
...
...
pinnate or
cretica.
4.
plumbea.
6.
serrulata.
1.
ensiformis. 10.
9.
semipinnata.
11.
13. decrescens. 10. aquilina.
12. 8.
dimorpha. 13.
12.
Grevilleana.
11. biaurita.
Common
P. longifolia, Linn. ; Hook et Bak. Syn. Fil. 153. on old walls, Hongkong ; near Chaochaufu, Swatow.
Kuhn in Jour. Bot. 1868, 269. On the
grassy slope of Victoria Peak, Hongkong ; Taimoshan at 2700 ft. among grass and scrub, Hongkong New Territory. Lienchow 3. P. cretica, Linn. ; Hook, et Bak. Syn. Fil. 154. B-iver ; North River ; West River. Swatow. 4. P. plumbea, Christ in Lecomte, Not. Syst. 1909. 49. Kwangtung 5. P. deltodon, Bah in Journ. Bot. 1888, 226. without locality. Common on 6. P. serrulata, Linn.f. ; Hook, et Bak. 1. c. 155. walls near Victoria, Hongkong. Common on 7. P. ensiformis, Burm. ; Hook, et Bak. 1. c. 155. dry banks, Hongkong ; in similar places in Hongkong New Territory. Copel. in Philipp. Journ. Sci. Bot. iii. 282. 8. P. dimorpha, In a shady wood near Fanling, Hongkong New Territory ; Lienchow River. Hook, et Bak. 1. c. 157. Common in 9. P. semipinnata, Linn. woods, Hongkong ; near Shingmun, Hongkong New Territory ; Macao. Hook, et Bak. 1. c. 162. Common from 10. P. aquilina, Linn. 2.
P. insignis, Mett.
sea level to 1500
ft.,
Hongkong
also in
Hongkong New
Territory ; hills near Chaochaufu ; Lofoushan. Hook, et Bak. 1. c. 164. 11. P. biaurita, Linn. Common in Hongkong ; Lamma Island, Hongkong New Territory ; near Chaochaufu Macao. 12. P. Grevilleana, Wall. ; Beddome Ferns Brit. Ind. 112. Hongkong ; on the bank of the Han River, Swatow ; Lofoushan. 13. P. decrescens, Christ in Bull. Acad. Geogr. Bot. 1906, 244. Lienchow River.
14. P. incisa,
Thunb.
West River
Hook, et Bak, Lofoushan.
1.
c.
172.
Lienchow River;
