.A 23 = longifolia (Kl.) K. Sch: flosculosa 
375; grandiflora 376; hedyotoides 374; Heynei 
375 A22, Tri; Holsür 376, A TIO, LIT; 
hymenocapsa 375; Johnstonii 375, A 76, 106; 
lancifolia 375; lasiocarpa 376; longifolia 376, 
A 74, 99, B 158; macrodonta 425; monanthos 
374; obtusiloba 376, A 23; Oliveriana 375, 
A 131; parviflora 375; rhamnoidea K. Sch. 
A 130, 131, 136; Schimperi 376; senegalensis 
376, A 55; setifera 376; silvatica 376; stru- 
mosa 376; tenuissima 375; trinervia 374, A 90; 
violacea 374, A 124. 
Olea chrysophylla 308, A 105, 117, B 348, 485, 
501, 514, 531. 
Oleandra articulata 87, A 88, 92, 94. 
Olinia capensis B 335; macrantha A 123; usam- 
barensis 285, A ros, B 335; Volkensii 285, 
B 334. 
Olyra latifolia 106. 
Omphalia Arethusa 60. 
Oncinotis melanocephala 319, A 74. 
Oncoba dentata 277; fissistyla 277; Kirkii 277; 
lasiocalyx 277; macrophylla 277; spinosa 277, 
A 70, 82, B 217; stipulata 277; Stuhlmannii 
277; tettensis 277. 
Oocystis crassa 22. 
Opegrapha Bonplandii 44; conglomerans 44; ele- 
gans 44; Menyhartij 44; prosodea 44; Quassiae 
44; rufa 44; sparsella 44; vulgata 44. 
Ophiocaulon gummiferum 281, A 70. : 
Ophiocythium biapiculatum 22; cochleare 22. 
Ophioglossum reticulatum 89; vulgatum v. kilima- 
ndscharica 89. 
Opilia celtidifolia 168, A 104; tomentella 168. 
Oplismenus africanus 104; compositus 104, A 21, 
85, 86, 117; hirtellus 104, A 109. 
Opuntia B 219. 
Oreograstis Eminii 127. 
Oreosyce Holstii A 107 — triangularis Cogn. 
Ormosia angolensis 203. 
Ornithogalum caudatum 143, A 56, 108; Ecklonii 
143, A 132; Kirkii 143; longebracteatum 143; 
Melleri 143. 
Ornithopus coriandrinus 213,-A 110; 124. 
Orobanche minor 362, A 99, 134. 
Orthochilus abyssinicus 157, A 108; Mechowii 157. 
Orthosiphon australis 349, A 111; breviflorus 349, 
A 55; Cameroni 349; cladotrichos 349, A 55; 
coloratus 349; parvifolius 349, A 46, 74; 
Stuhlmannii 349; usambarensis 349, A 77. 
Orthostichella imbricatula A 123. 
Orthotrichum Leikipiae 70; serrifolium 79; undu- 
latifolium 70. 
Orygia decumbens 175. 
Oryza sativa 106, B 59, 64, Fig. 6. 
Osbeckia antherotoma 295, A 95, 111; multiflora 
295, A 95; zambesiensis 295. 
Oscillatoria amphibia 10; formosa 10; tergestina Io. 
Osteospermum moniliferum A 98, 100, 110, 419. 
Osyridocarpus Kirkii 167; Schimperianus 168, 
A 129; scandens 167. 
Osyris abyssinica 167, A 106; tenuifolia 167, A 43, 
104. 
Othonna coriifolia 418; Whyteana 418, A r15. 
Otiophora pycnostachys 393; scabra 393. 
Otomeria aculeata 377; dilatata 377 ; madiensis 377: 
Ouratea reticulata 273, A 94, B 215. 
22 
—— 
Oxalis caprina 225, A 124; corniculata 225, A 92, 
108, 117, 123, 135, 138, v. procumbens 225; 
obliquifolia 225, v. Eminii 225; oligotricha 423; 
semiloba 225; trichophylla 423. 
Oxyanthus querimbensis 381; speciosus 381, A 82, 
B 357, 534- mw 
Oxygonum elongatum 170, A 79; salicifolium 171, 
A 32; sinuatum 170, A 53, 117, B işi; Stuhl- 
mannii 17I, A 64. 
Oxytenanthera abyssinica 117; macrothyrsus 117, 
A 34. 
Pachyrrhizus angulatus B 140; bulbosus B 123. 
Pachystigma ancylanthum 387; decussatum 387; 
fuchsioides 387; triphyllum 387; Zeyheri 387. 
Padina Commersoni 26; Pavonia 26, A 2. 
Paederia foetens 393. 
Panaeolus campanulatus 59. 
Pandanus rabaiensis 422, A 33; sessilis 93. 
Pandorina morum 21. 
Panicum abyssinicum 100, A 108, 123; adeno- 
phorum 103; argyrotrichum 100. A I1, 13, 21; 
albovellereum Tor, A 74; arundinifolium 103; 
atrosanguineum 103; Benthamii 102; brevi- 
folium 103; brizanthum 101, Aşı, 102; co- 
lonum 102, B 78; commutatum 100, A I3; 
corymbiferum 103; cristatum 100; Crusgalli 
102, A 20, 2I, 32, 80, B 78, v. sphacelata 102; 
curvatum 103, A I5, 19, 20, 2I, 32; diagonale 
100, A21, diagonale v. glabrescens 100; 
didactylum 100, A 21; Dregeanum 103; gemi- 
natum IOI; A II, 21, 71; Helopus 101, A 15; 
hippothrix 103, A 21; homonymum 102, 422, 
A108; incomptum 104; lachnanthum IOI, 
A 102; leersioides IOI, A 13, 21, 117; leuca- 
cranthum 102, A II, 31; madagascariense 103, 
AZI; maximum 103, A I3, 23, 32, 74 77» 
80, 109, B 80; mitopus 103; Monachne 103; 
mossambicense 104; nudiglume 100; oplisme- 
noides 104; parvulum Trin. A 109; pectinatum 
103; pennatum 103; Petiveri 102, A 50; platy- 
notum IOI, A 94; polystachyum 103; prostra- 
tum IO2; pubivaginatum 102, A 34; sanguinale 
100, A 13, 21, 109, B 86; sanguinale v. blepha- 
rantha 100; sanguinale v. horizontalis 100; 
scalarum 101; semialatum 102; semiundulatum 
IOI, A 108, 123; serratum 101, A 99; Stuhl- 
mannii 102, A 94; sulcatum 102, A 92, 123; 
trachycladus K. Sch. A 108 — trichocladum 
Hack.; trichocladum 103; Trichopus 101, 
A 15, 34; unguiculatum 102, A 31; virgatum 
103. 
Pannaria fulvescens 40; mariana 40; rubiginosa 40. 
Panus rudis A 84. 
Papaver somniferum B 262, 469. 
Papillaria africana 73, A 112; breviculifolia 73, 
A 112; filifunalis 73, A 112; fulvastra 73, 
A 85; patentissima 73, A 112; serpentina 73, 
A 123; serrulata 73, A 112. 
Pappea capensis 251, A 44, 75, B 323. 
Pappophorum abyssinicum 112. 
Paracarpidium tenellum 46. 
Parinarium curatellifolium I91, A 5, B 189; ex- 
celsum 191, B 189; Holstii 423, A 9o, B 298; 
Mobola r91, B 189, 470; salicifolium 191; 
Arten B 189. 
Parkia filicoidea B 191; africana B 191, 
