Psychotria abrupta 391, A 83; albidocalyx 390, | 
A20, 29; alsophila 390, A 106; amboniana 
390, A 29, 32; brevicaulis 391, A 83; buko- 
bensis 391, A94; coaetanea 391, A83; 
elachistacantha K. Sch. A92; hirtella 390, 
A 106, 115; hypoleuca 391; kilimandscharica 
391, A 123; Kirkii 391; lamprophylla 391, 
A 90; obtusifolia 391; porphyroclada 390, 
A 87; pumila 391; 
391. 
Ptaeroxylon obliquum 232, B 315. 
Pteleopsis variifolia 293, A 27, 73, B 341. 
Pteridella adiantoides 78;  Doniana 78, 
hastata 78; Holstii 78; involuta 79, 
A 70; 
A 76, 
v. tripinnatisecta 79; Schweinfurthii 78; viridis | 
79, A88, go, 92. 
Pteridium aguilinum 78, A 87, 90, 92, 103, 109, | 
| Randia dumetorum 380, B 517; Engleriana 380; 
IIO, 134, 135, B 401, v. lanuginosum 78. 
Pteris arguta Ait. A 74, 130 = flabellata (Thbg.) | 
Mett.; atrovirens 80, A 83; Barteri Bak. A 95; 
biaurita Kuhn, non L. 
aurita Retz.; Buchananii 80, A 85; Doniana 
J. Sm. A 98 — Pteridella Doniana (Sm.) Mett. ; 
hastata Thbg. A 98, 129 — Pteridella hastata 
(Thbg.) Mett. ` longifolia 79; occidentalis 80; 
pellucens 79; quadriaurita 79, A 134; usam- 
barensis 80, A 83, 130. 
Pterobryum flagelliferum 72; 
julaceum 72, A 112. 
Pterocarpus chrysotrix 218, A 63, B 310; erinaceus 
218, A 64, B 309, 408; melliferus A 115. 
Pterodiscus angustifolius 364. 
Pteroglossaspis Engleriana 157, A 100. 
Pterogoniella Stuhlmannii 75, A 95; usambarica 
75; A TIZ. 
Pterogonium abruptum 76; decipiens 76; kilima- 
ndscharicum 76, A 124; ornithopodioides 76. 
Pterolobium lacerans R. Br. A 104, 111 == Can- 
tuffa exosa Gmel. 
Pterula Bresadoleana 55. 
Pterygynandrum fabronioides 76, A 112. 
Ptychanthus striatus v. africanus 66. 
Ptycholejeunea striata 65, A III. 
Puccinia Acocantherae 50; aequalis 50; africana 
50; carbonacea 50; Convolvuli 50; Habenariae 
50; Kalchbrenneri 49;  Nephrophylli 50; 
Pentadis 50; Pimpinellae 50; Sorghi 50; 
Thunbergiae alatae 50; vernoniicola 50. 
Punica Granatum 286, B 219, 500. 
Pupalia atropurpurea 173; lappacea 173, A 15,17, 
53, 74 
Pusaetha abyssinica 
Hanningtonü 72; 
196, B 372; Kirkii 196; 
scandens B 372; Stuhlmannii 196; sudanica 
B 190. 
Pycnanthus microcephalus B 271; Schweinfurthii 
180, A 94, B 271. 
Pycnocoma littoralis 239; macrantha 239, A 82. 
Pycnostachys affinis 345, A 64; cyanea 345; 
Goetzenii Gürke A 135; Meyeri 344, A 89, 118, 
125; micrantha 345; orthodonta 345; parvi- 
folia 345; pubescens 345; reticulata 345; 
speciosa 345; Stuhlmannii 345; verticillata 345 ; 
Volkensii 344. 
Pyrenacantha malvifolia 248, A 40; vitifolia 248. 
Pyrenopsis robustula 36. 
Pyrenula adacta 47; cryptostoma 47; mamillana 
punctata 391, A 29; sub- | 
hirtella 390; Volkensii 390, A 106; zambesiana | 
A Hi go — guadri- | 
47, A 18; mastophora 47; mastophorizans 475 
nitida 47 ` parvula 47 ; pinguis 47 ; subgregantula 
47, A I8. 
Pyxine Cocoës 40; Eschweileri 40; Meissneri 40, 
© A 76; retirugella 40, A 76. 
Radula appressa 66, Arlı; bipinnata 66; Bo- 
ryana 66, A 111; Holstiana 66, A 84, 111; 
mascarena 66, A 111; Meyeri 66; recurvifolia 
66, A 111; voluta 66. 
Ramalina abyssinica 38; calicaris 37; complanata 
37, A 76; consanguinea 38; dendriscoides 37; 
Ecklonii 38; farinacea 38; Höhneliana 37; 
inflata 38; polymorpha 38, A 136; pusiola 38; 
scopulorum 38, B 400. 
Ramphicarpa fistulosa 361; Holstii 
Cycnium; pratensis A 99, 
stricta A 77, unter Cycnium. 
A 74, unter 
unter Cycnium; 
Fischeri 380, A 66, v. major 381; Kuhniana 
380; macrosiphon 381, A 32, B534, Taf.XLIV; 
malleifera 381, B 405; penduliflora 380, B 357- 
Ranunculus membranaceus 180, A 124; oreophytus 
181, A 127, 139; pubescens 181, A 100, 109, 
116, 124, 125; Volkensii 181, A 126. 
Raphanocarpus Kirkii 397. 
Raphanistrocarpus Boivinii 397, A 70. 
Raphanus sativus B 138; sativus radicula B 139. 
Raphia Kirkii A 10; Monbuttorum 131; ruffia 
131, B 16. 
Raphiacme grandiflora 425; longifolia 425. 
Raphidospora cordata 370, A 46; glabra 370, 
A 70, 77. 
Raphidostegium leucomioides A 112; peralare 75; 
perrevolutum 75, A 95. 
Raphiostyles Stuhlmannii A 95. 
Rauwolfia inebrians 317, A 93, 105, B 352; mom- 
basiana 317; monopyrena 318, A 30; ochro- 
sioides 318, A 86, 88; rosea 317; Stuhlmannii 
318, A 94. 
Ravenelia Volkensii 51. 
Reichardia tingitana 421. 
|, Rhabdostigma Kirkii 383, A 17. 
Rhacopilum africanum 76; 
speluncae 77, A 85, 112. 
Rhamnus Holstii 255, A 118; prinoides 255, A 125. 
Rhigozum zambesiacum 363. 
Rhinacanthus gracilis 371; nasutus 371; ndorensis 
capense 77, A 112; 
371. 
Rhipsalis Cassytha Gärtn. A 92; erythrocarpa 282; 
sansibarica 282. 
Rhizocarpon geographicum 44, A 137; inflatum 
44, A 137; Montagnei 44, A 137. 
Rhizogonium spiniforme 71. 
Rhizophora mucronata 287, A 6, 12, B 337, 408- 
Rhoicissus capensis 257, A 107; drepanophylla 
257; erythrodes 257, A 45, 107; Holstii 257, 
A 107, B 529; sansibarensis 257, A 5, B 530; 
Thunbergii 257, A 29; usambarensis 257; 
A. 89, B 529. 
Rhus glaucescens 245, A 14, 44, 57, 106, 114, 
B 320; glutinosa 245; natalensis v. collina 
A 28; villosa 245, A 79, 92, 105, B 320. 
| Rhynchosia caribaea 221, A 29; chrysadenia 222; 
comosa 222; cyanosperma Benth. A 107 — 
densiflora 222; elegans 222; fagelioides Taub. 
A 77; flavissima 221, A 21; Grantii 222; 
