904 BULLETIN DE l'hERBIER BOISSIER. (26) 



P. sparsiflora Oliver, Fl. trop. Afric, I, 127, 1868. 



Habitus plantae ut Oliver 1. c. descripsil : 



Alge quam corolla breviores, obovatse, leviter cilialse, nervis apice 

 arcuate anastomosantibus, lateralibus ramosis ramulis arcuate conjuncLis; 

 carinae limbus latus unguiculo duplo longior; crista lamellosa margine 

 valde dissecta decumbente conspicua summam carinam tegente ; petala 

 superiora basi cuneata insequaliter subbiloba, lobo majore alio incons- 

 picuo multo majore; ovarium obovato-cuneatum pilosum; Stylus tenuis 

 prius horizonlalis, dein erectus et deinde patens; Stigmata ut in aliis 

 subsectionis ; capsula elliptico-oblonga, basi leviler cuneata, leviter emar- 

 ginata, anguste marginata et ciliata, alis V^ brevior; semina oblonga pilis 

 serieeis obtecta ; arillus helicoideus superpositus. 



Affinis P. butyraceœ Heck., differt floribus minoribus et capsulis, semi- 

 nibus vestitis, petalis superioribus aliisque; etiam affinis P. Ruwenzoricae 

 nob. et P. tenuicaiili Hook. fil. 



P. Ru^wenzorica Chod. Joiirn. of botany, 1896, p. 199. 



In Africa centrali ad Muobuku Valley, ad 5000 ped., Scott Elliot, Ruwen- 

 zori exped., n» 7543. 



A P. gomesiana Welw. differt indumento, bracteis magis elongatis, 

 ovario prorsum ciliato, foliis apiculatis. 



P. EUiotii Chod., 1. c, \k 199- 



Tanganika, west slope, Kiriba, Scott Elliot, m 8237. 



Affinis P. gomesiande, differt bracteis longis, subscariosis, foliis apicu- 

 latis, seminibus et capsula oblongis, a P. ruwenzorica Chod. floribus 

 majoribus, bracteis scariosis, pedicellis multo longioribus, foliis haud 

 lonceolatis. 



P. Bakeriana Chod,, 1. c, 199. 



In Africa centrali, Urundi, Scott Elliot, Ruwenzori exped., n» 8251. 



Affinis P. butyraceœ Heck., differt caulibus in sicco fuscescentibus, 

 habituque toto; petalis superioribus, pistillo P. Gomesianae affinis, differt 

 autem floribus multo minoribus habitu que toto. 



P. Britteniana Chod., Jonrn. of bot. (1896), 198. 



In Africa centrali ad Stevenson Road, 4-5000 ped., Scott Elliot, Ruwen- 

 zori exped., 8256. 



Affinis P. butyraceœ Heck., differt caulibus minus robustis glabris, 

 petalis quam carina multo brevioribus, capsula angustiore et semine 

 dense vestito habituque toto graciüore. 



