438 MR. G. F. SCOTT ELLIOT ON THE GENUS PENTAS. 
Key to Collectors’ Numbers. 
Aylmer, 10 = P. pauciflora. 
Baron, 370, 1059, 1921, 4718, 4849 = P. mussendoides ; 310, 3292, 3980, 
6295 = P. micrantha; 4732 = P. hirtiflora. 
Barter, 1237 = Otomeria dilatata. 14 466 
Buchanan, 85, 475 = longiflora; 1187, 1285 = carnea d.; 14, 10 " 
1057 = purpurea ; 204, 1094, 3951 = Spermacoce ; 1493, 310 = 
Otomeria dilatata. 
Carson, 113, 23 = confertifolia; 40 = Spermacoce. . 
Scott Elliot, 7959 = carnea c.; 6122 = carnea d.; 6954 = Thomsoni 
8045 = verticillata ; 1884, 1763 = mussendoides ; "6437 = Ainsworthii ; 
6432, 6457, 7548, 8038 = longiflora; 7684, 7687, 7914, 8022 = occi- 
dentalis; 5239, 5392 = Otomeria speciosa; 6416, 6298, 6167 = 
parvifolia. 
Fischer, 319 = verticillata. 
Galpin, 749 = Woodii. 
Hens, 34 = Otomeria. a 
Hildebrandt, 1614 = carnea b.; 1124 = carnea d.; 2458, 1994 = parvifolia ; 
1128 = purpurea ; 3825 = musseendoides. 
Holst, 418 = longituba ; 2445 = longiflora; 3211 = carnea d. 
Humblot, 24 = carnea b. 
Hunter, 20, 47, 258 = Schweinfurthii. 
Kirk, 81 = purpurea. 
Lort Philips and Cole, 9, 11-14 = glabrescens ; 
Lyall, 195 = mussendoides. 
Mann, 1227, 1993 = occidentalis. 
Quartin Dillon, 126 = Schimperiana. 
Rothe, 313 = Schimperiana. 
Schimper, 93, 548 = carnea c; 38, 518, 916 = Schimperiana. 
Schweinfurth, 2775 = arvensis; 1370 = 
Speke, 15, 140 = purpurea. 
Volkens, 1822 = elata; 418 = purpurea; 721 = longiflora. 
Welwitsch, 5315 = purpurea; 5308 = carnea; 5309, 5310, 5311 = arvensis 
var; 5316, 5317 = Otomeria speciosa ; 5304 = n. sp. 
Wood, 4152 = Woodii. 
Zinker, 308 = volubilis. 
1-8, 10 = pauciflora. 
Schweinfurthii. 
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