Yo 
o2 
Q2 
" 
ren 
bo 
— 
M 
bo 
bo 
. Sori roun 
. Capsules with an incomplete ring 
. Aquatic annual... 
. Capsules 2-valved ; stems climbing 3 
. Fronds 13 ft. long 
. A. dentieulata, Bak. in Journ. Bot. 1885, 102. 
334 
Sori not spread all over under 
surface of fronds... ies 
bo 
e 
29. 
tis dá - Polypodium (p. 350). 
Sori oblong or reticulated 30. 
Sori oblong " 
Sori reticulated 
Q2 bo 
on 
. Meniscium (p. 353). 
Hemionitis (p. 354). 
32. 
Capsules without a ring .. 
— 
e 
34. 
ies Ceratopteris (p. 341). 
Perennial not aquatic — . 33 
e 
b Lygodium (p. 356). 
Capsules 2-valved ; stemsnot climb- 
2 
pe 
n ees ies ica Osmunda (p. 355). 
Large plant ; fronds 6 ft. long or 
9o 
^g 
gau ie ma S Angiopteris (p. 355). 
Small plant; fronds under 1 foot 
long <i Ww: is t 
Qo 
or 
: Ophioglossum (p. 355). 
1.—GLEICHENIA. 
Key to species. 
Stipes copiously bipinnate —— ... we l. longissima. 
Stipes not bipinnate 2. dichotoma, 
. G. longissima, B/.; Hook. et Bak. Syn. Fil. 12. In Glenealy 
ravine, near Causeway Bay and in ravines on Mt. Nicholson, 
Hongkong ; Taimoshan, Hongkong New erritory ; 
Kwaisin, Hoifung ; stream near Chaochaufu, Swatow. 
w 
. G. dichotoma, Willd. ; Hook. et Bak. l. c. 15. Abundant in 
ongkong ; common in the Hongkong New Territory ; 
hills near Chaochaufu, Swatow. 
2.—CYATHEA. 
. C. spinulosa, Wall. ; Hook. et Bak. 1. e. 23. On bank above 
Robin 
oad, Hongkong ; Lantao Island, Hongkong 
New Territory ; Lienchow River ; Lofoushan ; E. River. 
3.—ALSOPHILA. 
Key to species. 
l. denticulata. 
Fronds much longer E ae : 
Pinnules entire or serrate = e 3. podophylla. 
Pinnules deeply pinnatifid 2. tomentosa, 
Taimoshan at 
2500 ft., Hongkong New Territo 
ry. 
. A. tomentosa, Hook. ; Hook. et Bak. Syn. Fil. 42. Naturalised 
in the Glenealy ravine, Hongkong. 
A. podophylla, Hook. ; Hook. et Bak. |. c. 43. Happy Valley, 
Washerman's Ravine, Foot of Victoria Peak, Mt. Gough, 
Mt. Parker, and south of Sheko Gap, Saiwan. Hongkong ; 
Maonshan and Taimoshan, Hongkong New Territory ; 
- near Swatow, is 
