351 



16. 

 17. 

 18. 

 19. 

 20. 



21. 

 22. 

 23. 

 24. 

 25. 

 26. 

 27. 

 28. 

 29. 



1. 



10. 



lobes 



Stalk winged to the base 

 Stalk not winged to the base . . . 



Wing of stalk lobed 



Wing of stalk not lobed 



Fronds of two kinds 



Fronds all shaped alike 



Stalk winged towards the top... 



Stalk not winged 



Fronds 3 or more-lobed, basal 



not the largest 

 Fronds 5-6-lobed, basal lobes largest 

 Fronds 3-lobed, but sometimes entire 



Fronds many lobed 



Lobes wide apart, ^ to 1^ inch broad 

 Lobes rather close, i to f inch broad 

 Fronds including stipes 1 to 3 feet long 

 Fronds including stipes 4 to 8 feet long 

 Fronds once pinnate ... 

 Fronds more than once pinnate 

 Pinnae 1 inch broad or less ... 

 Pinnae 1^ inches broad or more 

 Main veins distinct 

 Main veins not distinct 

 Veins pinnate; fronds proliferous 

 Veins not pinnate ; fronds not proHferous 

 Lobes of pinnae less than one line deep 

 Lobes of pinnae over one line deep ... 

 Veins ^ inch apart, pinnae crenate ... 

 Veins ^ inch apart, pinnae entire 



17. 

 19. 



27. conjugatum. 



18. 



28. Fortunei. 



25. dilatatum. 



20. 

 21. 



22. pteropus. 



23. hemitomum. 

 21. hastatum. 



22. 



24. Phymatodes. 



23. 

 7. amoenum. 



26. longissimum. 



25. 



1. punctatum. 



26. 



2. urophyllum. 



27. 

 30. leiorhizon. 

 28. 

 29. 

 4. lineatum. 



3. proliferum, 



29. Lehmanni. 

 7. Sampsoni. 



5. P, 



6. P 



P. punctatum, Thunb. ; Hook, et Bak. Syn. Fil. 312. Hong- 

 kong without locality ; Taimoshan, Hongkong New 



Territory. 

 P. urophyllum, Wall. ; Hook, et Bak. 1. c. 314. Mt. Parker, 



Sheko, and Glenealy ravine, Hongkong ; Taimoshan at 



1500 ft., Hongkong New Territory. 

 P. proliferum, Presl ; Hook, et Bak. 1. c. 315. Lienchow River. 

 P. lineatum, Colebr. ; Hook, et Bak. 1. c. 316. Wet banks, 



Lienchow River, 

 parasiticum, Mett. ; Hook, et Bak. 1. c. 319. On a granite 



rock in the course of a small stream above Causeway Bay, 



Hongkong ; near the summit of Taimoshan, Hongkong 



New Territory, 

 hirtellum, Blume ; Hook, et Bak. 1. c. 320. Taimoshan at 



2600 ft., Hongkong New Territory. 

 P. amoenum, fVall. ; Hook, et Bak. 1. c. 341. Lofoushan. 

 P. Sampsoni, Bak. in New Ferns, 1892, 88. West River. 

 P. adnascens, Swartz ; Hook, et Bak. Syn. FU. 349. Common 



on rocks and trees, Hongkong ; Stonecutters' Island ; 



Hongkong New Territory without locality ; near Chao- 



chaufu. 

 P. Lingua, Swartz ; Hook, et Bak. 1. c. 350. Common on rocks 



on Victoria Peak, Mt, Parker and elsewhere, Hongkong ; 



