303 



18.— GAHNIA. 



Key to species. 

 Panicle condensed, narrow .. ... 1. tristis. 

 Panicle loose, spreading ... ... 2, javanica. 



1. G. tristis, Nees ; Benth. Fl. Hongk. 398. Bowen Road, 



Wanchai Gap and East Point in swamps, Hongkong ; 

 Taimoshan, Honglcong New Territory ; Macao. Fl. 

 M arch — N o vember . 



2. 6. javanica, Moritzi ; C. B. Clarke in Hook. f. Fl. Brit. Ind. 



vi. 676. Phoenix Mt., Swatow. Fl. April. 



19.— SOLERIA. 



Key to species. 



1. Bisexual spikelets many 

 Bisexual spikelets none or few 



2. Panicle compound, branches 4 inches 



long 

 Panicle with distant axillary corymbs 



3. Slender plant with fibrous roots, or with 



very short and not thick rhizomes 

 Robust plant with thick woody rhizomes 



4. Middle sheaths winged 

 Middle sheaths not or obscurely 



winged 

 4a. Nut tessellated 



Nut obscurely reticulated or smooth ... 



5. Ligule depressed ovate 

 Ligule with margin prolonged below . . . 



6. Leaves whorled 

 Leaves alternate 



7. Stem scabrous ; disc lobes small, ovate 

 Stem smooth ; disc lobes ^ as long as 



nut, lanceolate 



1. S. lithosperma, Sioartz ; Benth. Fl. Hongk. 399. Aberdeen, 



Hongkong ; Macao. Fl. August. 



2. S. Ridleyi, C. B. Clarke ; S. laevis, Benth. 1. c. 400. Hongkong 



without locality. Fl. December. 



3. S. biflora, Roxb. ; S. tessellata, Benth. 1. c. 399. Hongkong ; 



Kuntong, Hongkong New Territory. Fl. October. 



4. S. elata, Thwaites ; C. B. Clarke in Hook. f. Fl. Brit. Ind. vi. 



690. Mt. Kellet, Hongkong ; White Cloud hills. Fl. July. 



5. S. chinensis, Kunth ; Benth 1. c. 400. Abundant in ravines. 



Hongkong ; Macao. Fl. December to March. 



6. S. Harlandi, Hance ; S. pitrpurascens, Benth. 1. c. 400. Hong- 



kong without locality. Fl. April. 



7. S. Radula, Hance ; S. laevis, var. scaherrima, Benth. 1. c. 400. 



Mt. Kellet, Hongkong ; Castle Peak, Hongkong New 

 Territory ; hill near Chaochaufu. Fl. April — July. 



8. S. hebecarpa, Nees ; C. B. Clarke 1. c. 689. Aberdeen, Hong- 



kong ; Whampoa ; Macao ; Pakhoi ; Lienchow River ; 

 Lofoushan. il. August. 



