272 
3. Z. integrilabrum, Hance in Journ. Bot. 1882, 80. 
ledge of. a rock on Mt. Gough, Hongkong. 
April to October. 
On the 
Fl 
, 
4. Z. officinale, Rosc.; Baker in Hook. f. Fl. Brit. Ind. vi. 246. 
ienchow River ; —— cultivated in Kwangtung. Fl. 
green and purple, Octo 
5. Z. Zerumbet, Rosc. ; Baker in Hook fl e. 247. 
Taitam Tuk, 
and Deepwater Bay. Hongkong ; Tingushan on the West 
River. Fl. white, with oe yellow lip, July. 
4.—COSTUS. 
1. C. speciosus, Sm.; Baker in Hook, f. l. c. 249. 
Fl. white, August. 
" P P 
North River. 
5.—ALPINIA. 
Key to species. 
l. Leaves preces l. pumila, 
Leaves caulin 2. 
2. Flower bud inelidd in a large mem- 
branous bracteole ... [P 
Flower bud not — in à large 
membranous bracteo 3. 
Flowers more than 1 iih: long s 4, 
Flowers less than 1 inch long 5. 
Lip full 1 inch long, base not spurred 3. oxyphylla. 
Lip more than 1 inch long, base men 4. calcarata 
Bracts scarious and persistent : 5. stachyodes 
Bracts not scarious and persistent 6. 
6. Flowers nearly 1 inch long 8 
Flowers 8 lines lon ` 7. chinensis 
7. Leaf margin densely downy . 2. nutans 
Leaves quite glabrous 8. formosana 
Flowers in a panicle 6. Galanga 
Flowers in a raceme 9. japonica, 
l. A. pumila, Hook. f. Bot. Mt t. 6832.  Lofoushan. Fl. pink, 
April. 
2. A. nutans, veo Benth. Fl. Hongk. 348. In ravines of kog 
o 
p 
TE 
z 
m 
s s 
PE 
A 
B 
HE 
=| 
B 
o 
ot 
Z 
nE 
m 
Ea 
S 
n 
, Rose. ; Baker in Hook. i FI. "B. Tad. vi. 254. 
Hongkong without locality. Fl. greenish white with lip 
Ma . 
spotted and striped with yellow, 
5, A. stachyodes, Hance in Journ. Linn. Soc. 
In 
Happy Ma woods, and Mt. Gough, sree andi 
the 
Fl. 
whitish, 
6. A. Galanga, Willi; Benth. Fl. Hongk. 348. Victoria Peak, 
and Beepwater Bay, Hongkong; White Cloud hills, 
Canton, Fl, white with purple lip, June, 
