‘ 
Macbride — Notes on certain Leguminosae 17 
Prosopis farcta (Russell), comb. nov. Mimosa farcta sere 
a Hist. Alep. ed. 2. ii. 266 (1794). M. Stephaniana Bieb. Cas 
5 (1800). P. Stephaniana (Bieb.) Kunth ex Spreng. Syst. ii 
26 (1825). 
Neither of these characteristic species of Prosopis, the former of 
southern Asia and the latter of the Mediterranean region, seems to 
have been properly christened. 
Piptadenia gonoacantha (Mart.), comb. nov. Acacia gonoacan- 
tha Mart Herb. Fl. Bras. 109 (1887). P. communis Benth: ih 
Hook. Journ. Bot. iv. 337 (1842). 
There is no doubt as to the identity of the plant of Martius and 
that of Bentham. The latter author in his revision, Trans. Linn. 
Soc. xxx. 370 (1875), refers here with doubt Acacia callosa Spreng. 
Syst. iii. 138 (1826). It is impossible to identify Sprengel’s plant 
from description which applies quite as Well to P. filicicoma as to 
P. communis except that in neither of these species are the spikes 
“paniculate.”’ Sprengel’s name, therefore is not to be taken up 
for a known species of Piptadenia unless its identity can be estab- 
mae by reference to the collection upon which the name was 
ased. 
Piptadenia fruticosa (Mart.), comb. nov. Acacia fruticosa 
Mart. Herb. Fl. Bras. 107 (1837). P. latifolia Benth. in Hook. 
Journ. Bot. iv. 335 (1842). 
Piptadenia adiantoides (Spreng.), comb. nov. Acacia adian- 
toides Spreng. Syst. iii. 146 (1826). P. ite Benth. in Hook. Journ. 
Bot. iv. 335 (1842). P. lava Benth., var. pubescens Benth, in 
Mart. FI. Bras. xv. pt. 2. 274 (1876). 
As Bentham indicated, Hook. Journ. Bot. iv. 355, these plants 
are very closely related. A series of collections is needed, how- 
ever, to show whether they intergrade. Typical P. adiantoides is 
Somewhat pubescent and was treated by Bentham in the Flora 
Brasiliensis, 1. c., as the var. pubescens of his P. laza, the glabrate 
form, which sbouis. perhaps, be recognized varietally. 
Piptadenia grata (Willd.), comb. nov. Acacia grata Willd. 
Enum. Hort. Berol. ee (1809). P. macrocarpa Benth. in Hook. 
ourn, ot iv. 341 (1842). 
Piptadenia obliqua (Pers.), comb. nov. Sophora obliqua Pers. 
Syn. Pl. i. 452 (1805). Acacia Thibaudiana DC. ides ii. 456 
oar P. moniliformis Benth. in Hook. Journ. Bot. iv. 339 
