355 



3. Pinnae 3 to 7 



Pinnae more than 7 



4. Terminal fertile pinnae over 1 inch 



broad 

 Terminal fertile pinnae ^ inch broad ... 



5. Fronds including stipes 6 inches to 1 foot 



long... 

 Fronds including stipes l^ feet long or 

 more 



6. Barren pinnae serrated towards the apex 

 Barren pinnae not serrated 



7. Edge of pinnae, fertile and barren, entire 

 Edge of barren pinnae crenate 



8. Veins anastomosing 

 Veins free 



4. 

 5. 



5. Harlandii. 



6. flagelliferum. 



3. appendiculatum. 



6. 

 8. 

 8. 



8. aureum. 



7. repandum. 



9. Blumeanum. 

 2. sorhifolium. 



1. A. austro-sinicum, Tutcher ; Elaphoglossum austrosinicum, 



Matthew et Christ in Lecomte, Not. Syst. 1909, 57. On 

 the east side of Taimoshan at 2700 ft., Hongkong New 

 Territory. 



2. A. sorbifolium, Linn.; Hook, et Bak. Syn. Pil. 412. North 



River. 



3. A. appendiculatum, Willd. ; Hook, et Bak. 1. c. 415. Mt. 



Parker south and Sheko ravine, Hongkong ; Taimoshan, 

 Hongkong New Territory ; Lienchow River ; Lofoushan. 



4. A. qnercifolium, Retz. ; Hook, et Bak. 1. c. 418. Near Wong- 



neichong and Robinson Rd., Hongkong'; Hoifung ; 

 Lofoushan ; White Cloud hills, Canton ; Fungwongshan. 



5. A. Harlandii, Hook. ; Hook, et Bak. 1. c. 418. On Mt. Gough 



in a shady ravine, Hongkong ; Lantao Island, Hongkong 

 New Territory ; bank of the Han River, Swatow. 



6. A. flagelliferum, Wall. ; Hook, et Bak. 1. c. 418. Lienchow 



River ; North River. 



7. A. repandum, Blume ; Hook, et Bak. 1. c. 419. Common in 



shady ravines, Hongkong ; Lienchow River. 



8. A. aureum, Linn. ; Hook, et Bak. 1. c. 423. In the estuaries 



at Taitam Tuk and Aberdeen, Hongkong ; Taipo, Taisui- 

 hang river and Wongneichau Bay, Hongkong New 

 Territory. 



9. A. Blumeanum, Hook. ; Hook, et Bak. 1. c. 423. North River. 



38.— OSMUNDA. 



Key to species. 



1. Fronds simply pinnate ... ... \. javaniea. 



Fronds twice pinnate ... ... ... 2. 



2. Lateral pinnules \to^ inch long ... 2. bipinnata. 

 Lateral pinnules 1 to 3 inches long ... 3. regalis. 



1. 0. javaniea, Blume ■ Hook, et Bak. Syn. Fil. 426. Common on 

 the banks of streams, Hongkong ; Taimoshan and Shatin, 



Hongkong New Territory ; Lienchow River ; Macao. 



?15J5 



g A 



