4 
NOYITATES AFRICAN AE 
rostratus, 4 cm. longus, 1-8 cm. latus, marginibus incrassatis, muricatis. 
Semina immatura nitida, ellipsoidea. 
South West Africa. Amboland: Oshando, H. Schinz (1886). 
Between Nauchas and Areb, on granite at banks of stream, corolla 
purple-blue, 3rd Jan., 1916, H. H. W. Pearson (Percy Sladen 
Memorial Expedition, No. 9019). 
This is a very distinct species from the common and well known 
Dolichos Lablab, Linn. It differs from D. Lablab especially by the 
very slender stems, small hastate leaflets and smaller flowers and 
bracts. The fruits of the two species are very similar, but in our plant 
much smaller. 
Caesalpinia Pearsonii, L. Bolus ( Legu minosae- Gaesalpinioideae) ; species foliis 
minimis bipinnatis, pinnis tribus, quasi digitatis, leguminibus valde 
falcatis aculeatis insignis. 
Suffrutex rigidus, 15 — 40 cm. altus; rami patentes vel adscendentes, 
subteretes, spinellis sparsis, demum valde recurvis, validis, basi 0-3 cm. 
cliam., armati, juniores adpresse argenteo-pubescentes, seniores glabre- 
scentes, cortice pallido vel brunneolo, ad 0-6 cm. diam. ; folia patentia 
vel saepius reflexa, sessilia, stipulis binis vel saepe tertio interjecto, 
basi concretis, spinescentibus, 0-3 cm. longis, 2-pinnata, 0-7 — 1-7 cm. 
longa, pinnis tribus, quasi digitatis, 5 — 8-jugatis, foliolis oppositis, 
sat crebris, ovalibus, obtusis vel subacutis, argenteo-sericeis, 0-3 — 
0-4 cm. longis; flores paniculati, panicula parce ramosa, ramis brevibus 
aculeatis; bracteae mox deciduae, argenteo-sericeae, vix 0*2 cm. longae; 
pedicelli rarius ad 0-2 cm. longi; calvx argenteo-sericeus, 0-5 cm. 
longus, segmentis erectis subovatis vel anteriore obovato-oblongo, 
tubo fere duplo longioribus; petala flava, 0-9 cm. longa, breviter ungui- 
culata, apice fere truncata, delicatule undulata, anteriora 0-2 cm., 
lateralia 0-3 cm., posterius 0-4 cm. lata; filamenta dimidio inferiore 
ciliata, petala parum excedentia, inter se inaequilonga, antheris 
ovatis apiculatis; ovarium stipitatum setosum 2-ovulatum, stigmate 
concavo, margine ciliato; legumen indehiscens planum falcatum 
rubescens aculeatum, aculeis atro-rubris, 2-3 cm. longum, 1-5 cm. 
latum, semine unico piano, 0-8 cm. longo latoque. 
South-West Africa; Ababes, breccia banks of the Tsondab River, 
below farm, Dec. 29, 1915, H. H. W. Pearson (Percy Sladen Memorial 
Expedition, No. 9162). 
There is no other Caesalpinia at all like this amongst the old-world 
examples of the genus, and the habit is equalled only by certain of the 
microphyllous West Indian and South American species. (PL i, B.) 
Mesembiianthemum caespitosum, L. Bolus (Ficoideae-Mesembricae) epapulo- 
sum perenne caulescens, ramis elongatis prostratis caespitosis foliosis, 
