542 E. De Wildeman. 
ealice velutino circ. 5 mm longo, lobis lanceolato-acutis, ciliatis; corolla 
roseo-violacea, intus lutea, circ. 12 mm longa. 
Ober-Katanga: Élisabethville, février 1912 (Homblé no. 128). 
Obs. — Kommt in die Verwandtschaft von O. semiloba Sand. und 
von O. Pynaertii De Wild. von Mittel-Congo. 
93. Oxalis minima De Wild., nov. spec. 
Planta acaulis, usque 5 cm alta; foliis trifoliolatis, petiolatis, petiolo 
circ. 3 cm longo, glabro, foliolis obovatis, basi cuneatis, apice non emar- 
ginatis, 3,5—6 mm altis et 5—10 mm latis, infra depresso-punctulatis ; 
pedunculo gracili, glabro 3,5—4 cm longo, unifloro, pedicello bibracteo- 
lato, bracteolis linearibus, circ, 3 mm longis; calyce 3—4 mm longo; co- 
rolla roseo-violacea, circ, 1 cm longa. 
Ober-Katanga: Élisabethville, février 1912 (Homblé, no. 119); Shis 
angwe, février 1912 (Homblé, no. 92). 
Obs. — Verwandt mit I. punctata L. 
94. Oxalis Ringoeti De Wild., nov. spec. 
Planta plus minus erecta; foliis fasciculatis, trifoliolatis petiolatis, 
petiolo 3 em circ. longo, foliolis triangularibus 5—7 cm longis et 12— 
17 mm latis, basi late cuneatis, apice leviter emarginatis, lobis rotun- 
datis, infra et margine sparse pilosis; inflorescentiis axillaribus, pedun- 
culatis, pedunculo velutino circ. 4 cm longo, apice bracteolato, bracteolis 
linearibus, velutinis usque 4 mm longis, pedicellis velutinis cire. 10 mm 
longis, post anthesin refractis; calyce velutino, lobis cire, 4 mm longis; 
corolla violacea circ. 1 cm longa. 
Ober-Katanga: Shinsenda, mars 1912 (leg. Ringoet, coll. Homblé, 
no, 440). 
Obs, — Kommt in die Verwandtschaft von O. corniculata L. 
XLV. Plectranthus L'Hér. (Labiataceae). 
95. Plectranthus Hockii De Wild., nov. spec. 
Planta basi lignosa; ramis erectis usque 50 em altis, efoliatis; in- 
florescentiis ramosis, ramis oppositis vel alternantibus, basi bracteolatis, 
bracteolis (foliis reductis) linearibus, usque 7 mm longis; floribus oppo- 
sitis vel alternis, plus minus numerosis, plus minus longe pedicellatis, 
pedicello 6—15 mm longo, apice articulato, infra breviter tomentoso, 
supra pilis glanduloso munito; calyce glanduloso-piloso, 5 mm circ. longo, 
5-dentato, dentibus subaequalibus, triangulari-acutis; corolla forte arcuata, 
labio elliptico-subacuto, genitalibus paullo exsertis; calyce post anthesin 
accrescente, nervis prominentibus, usque 11 cm longo; achaeniis brun- 
neo-lutescentibus, subglobulosis circ. 2 mm longis. 
Ober-Katanga: Bords de la Dilemba, octobre 1911 (Ad. Hock); 
Plateau de Shinkwari (Manika), 1911 (Ad. Hock). 
Obs. — Aff. P. Baumii Gurke (Kunene-Sambesi-Expedition, p. 356). 
XLVI. Protea L. (Proteaceae). 
96. Protea Bequaerti De Wild., nov. spec. 
Frutex irregulariter ramosis; foliis glabris, ellipticis vel oblongis, 
basi contractis, apice plus minus rotundatis, 12—17 cm longis et 4,5— 
