16. Stalk winged to the base Ha e HW 
Stalk not winged to the base 19. 
17. Wing of stalk lobed  ... 27. conjugatum. 
Wing of stalk not lobed a 18. 
18. Foods of two kinds ... id .. 28. Fortunei. 
Fronds all shaped alike .. 25. dilatatum. 
19. Stalk winged towards the top... xi 20. 
Stalk not winged 21. 
20. Fronds 3 or incrodloBat basal lobes 
not the largest 22. pteropus. 
Fronds 5-6-lobed, basal lobes largest 23. hemitomum. 
21. Fronds 3-lobed , but sometimes entire 21. hastatum. 
Fronds many lobed 22. 
22. Lobes wide apart, 4 to 14 inch broad 24. Phymatodes. 
Lobes rather close, 3 to 3 inch broad 23. 
23, Fronds including stipes 1 to 3 feet long 7. amoenum 
Fronds including stipes 4 to 8 feet es 26. longissimum. 
24. Fronds once pinnate 25. 
Fronds more than once pinnate e. Ll. punctatum, 
25. Pinnae 1 inch broad or less bes 
Pinnae 14 inches broad or more s | urophyllum. 
26. Main veins distinct : ase 
Main veins not distinct ; 
27. Veins pinnate ; Tronds prolifero oM . 
fronds not proliferous 29. 
28. Lobes of pinnae ve than one line deep 4. lineatum. 
Lobes of pinnae over one line deep ... 3. proliferum. 
29. Veins f inch apart, pinnae crenate ... 29 j 
eins K inch apart, pinnae entire... 7. Sampsoni. 
l. P. punctatum, Thunb. ; Hook. et Bak. Syn. Fil. 312. Hong- 
kong without locality ; ; Taimoshan, Hongkong New 
it 
w 
= 
Coa: 
28. 
th 
errito 
ER urophyilum, Wall. ; Hook. et Bak. l. c. 314. Mt. Parker, 
: o, and Glenealy ravine, Hongkong ; Taimoshan a 
um ft., Hongkong New Territory. 
dm ce proliferum, Presl ; Hook. et Bak. 1. c. 315. Lienchow River. 
^ um, Colebr.; Hook. et Bak. l. c. 316. Wet banks, 
ene River. : 
. P. parasiticum, Mett. ; Hook. et Bak. l. c. 319. On a granite 
k in the course of a small stream above Causeway Bay, 
Hongkong ; near the summit of Taimoshan, Hongkong 
New Terri 
hirtellum, Blume; Hook. et Bak. l. c. 320. Taimošhan at 
2600 ft., Hongkong New Territory. 
amoenum, Wall. ; Hook. et Bak. l. c. 341. Lofoushan. 
Sampsoni, Bak. in New Ferns, 1892, 88. West River. 
adnascens, Swartz ; Hook. et pec Syn. Fil. 349. Common 
on rocks and trees, Hongko iacit Island ; 
Hongkong New Territory idiot locality ; near Chao- 
Pío 
or 
oo 
www v 
c i 
10. P. Lingua, Swartz; Hook. et Bak. 1l. c. 350. Common on rocks 
on Victoria Peak, Mt. Parker and elsewhere, Hongkong ; 
