312 MR. BENTHAM ON TROPICAL LEGUMINOSÆ. 
The above character is slightly modified from that which we had given in the ‘ Genera 
Plantarum,’ the additional species received from Dr. Welwitsch since the sheet was 
printed off having enabled me more correctly to understand the structure of the flowers. 
The calyx-like outer envelope is in fact, as we had doubtfully suggested, a pair of 
bracteoles like those of Macrolobium and Berlinia; the very small scale-like bodies 
described as petals are shown by the B. tamarindoides, in which they are more developed, 
to be calyx-segments, like those of Berlinia, five in number when complete, but some often 
deficient; and the petals appear to be entirely wanting, or reduced to one or two quite 
microscopic. The genus may be considered, therefore, to be much more closely allied to 
Berlinia than we had supposed, chiefly in the very much reduced floral envelopes. 
Of this genus we have now the three following species :— 
1. B. TAMARINDOIDES, Welw. Foliolis 10-20-jugis oblique oblongo-lanceolatis obtusis 
sessilibus basi valde inæquilateris, racemis brevibus densis paniculatis, pedicellis 
brevissimis, ovario subsessili. 
Arbor ex Welwitschio 20-40-pedalis, habitu et imprimis foliorum figura et compositione Tamarindo 
indice simillima. Ramuli et folia novella tomentoso-puberula, adulta glabrata.  Foliola arcte 
sessilia, conferta, 6—9 lin. longa, obtusa, basi latere interiore angusta, exteriore rotundata, coriacea, 
2-3-nervia, costa media parum excentrica. Inflorescentia fulvo-tomentosa; racemuli fere in spicas 
parvas oblongas v. subglobosas conferti, in panieulam oblongam folia summa non excedentem dis- 
positi. Bracteæ ovate, concave, 1-14 lin. longæ, caducæ. Pedicelli vix ulli. Bracteæ ovali-orbicu- 
late, concavæ, 23 lin. longe. Calycis segmenta 5, squamiformia, ciliata, vix lineam longa. Petala 
O vel rarius 1-2, minuta, linearia. Stamina 10, bracteolis paullo longiora, basi in annulum brevissime 
connata. Ovarium subsessile, villosum, 6-8-ovulatum. Stylus glabratus, stigmate truncato. Le- 
gumen valde obliquum, in stipite brevissimo angulo recto inflexum, 2-3 poll. longum, planum, crasso- 
coriaceum, læve, sutura superiore incrassato-dilatata. 
Hab. West tropical Africa. In the Huilla district of Angola, forming here and there small woods be- 
tween Lopollo and Lake Toantäla (Welwitsch). 
Dr. Welwitseh has also speeimens of two trees which, if not varieties, appear to be 
closely allied to the preceding,—one, in leaf and fruit, with the leaflets of the same 
number and shape as in B. tamarindoides, but nearly twice as large, and not crowded, 
and the pod larger and not so smooth. This was gathered by Welwitsch between Condo 
and Guisonde, and at Sansamanda in Pungo Andongo. A single leaf of a tree from the 
mountains of Zanguebar in Speke and Grant's collection belongs probably to the same 
species or variety. "The other is more evidently distinct, but is in leaf only : the leaflets 
are more numerous, intermediate in size between those of the two others, and the midrib is 
very near to the upper margin. It forms a low shrub of 1 to 24 feet, common in the Mu- 
tollo woods between Pedras de Guinga and Candumba in the district of Pungo Andongo. 
2. B. sprcærormis. Foliolis 4-6-jugis ovatis vel ovali-oblongis obtusis basi obliquis 
brevissime petiolulatis, racemis brevibus simplicibus dense spiciformibus, pedicellis 
brevissimis, ovario breviter stipitato. 
Arbor gracilis, 10-20-pedalis, ramulis foliisque novellis pube brevi plus minus vestitis demum glabri- 
usculis Foliola per paria dissita, 1-13 vel rarius 2 poll. longa, basi oblique rotundata, tenuiter 
coriacea, pennivenia, costa parum excentrica, petiolulo brevissimo at distincto. Stipule lineares, 
