287 
PANDANACEAE. 
1.-PANDANUS. 
Key to species. 
1. Plant acaulescent E eis es d. urophyllus. 
Plant caulescent vis a3 R d: 
2. Leaves 3-5 ft. long; stem often 
10-12 ft. high xi 2. odoratissimus, 
Leaves over 5 ft. DE ; stem not more 
than 2 ft. high ; "s : 3. forceps. 
— 
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bo 
22 
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e bo 
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o unu o ^ e 
BPs ein aes eC 1 
Hel 
s 
P. sty Ue acts Prei in Journ. Bot. 1875, 68. Not uncommon 
s, Hongkong ; Taimoshan, Hongkong New 
Pecans etr Canton? ; Lienchow? Fl. — 
485. Common along the seashore, Hong- 
ie ;in similar places in the Hongkong New Territory ; 
Macao. Fl. cre mun July. 
S eye Linn. ; P. fascicularis, Lam.; Hook. HE Fl. 
Brit. I E 
| P. forosps; me Ae Webbia, i. 363. ‘On the bank of a stream 
at 
end of the racecourse, Wongneichong, Hon 
kong ; ee on low lying, zoe places near the Eouth 
face of Beacon Hill tunnel, Hongkong New Territory ; 
Sanning? Fl, eream-coloured, July. 
ARACEAE. 
Key to genera. 
Prickly plant =. “ee - 47 B. Lana. 
Plant not sif ckl 
Plant flowering without” eaves s 5. Amorphophallus. 
Plant flowering with lea A is 3. 
Climbing plant ge xe ds ees 
Non-climbing peut i 3 en 6. 
Perianth 0 ies E Esa 5. 
Perianth segments BO oo ix ves, c ll. Pothos. 
Leaves with perforations Tes ... 10. Epipremnum. 
Leaves without perforations ... ... 9. Raphidophora. 
Floating water plant ... = nx . 4e HUN. 
Non-floating plant ied E T. 
. Leaves long, linear — ... s Ur Iw Acorus. 
Leaves not linear ey 8. 
Leaves simple ... gue En se 9. 
Leaves compound AT y^ e IE 
Petioles stout, succulent ; e? 10. 
Petioles slender, not sueculent 4. Typhonium, 
es numerous - 6. 
isect as ee ee 3. Arisaema, 
. Leaves pedatisect E. ud s» d. Pinellia. 
Leaves palmati 
