500 NOTES ON MIMOSEJX. 
255. A. arabica (Wild. Spec. iv. 1085), glabra v. tomen- 
toso-pubescens, spinis minimis longisve subulatis validisve 
demum eburneis rectis subrecurvisve, pinnis 4-8-jugis rarius 
1-3-jugis, glandulis  scutelleformibus  petiolari sepe 
majuscula, foliolis 10-20-jugis oblongo-linearibus obtusis 
viridibus glabris v. vix ciliolatis, pedunculis axillaribus medio 
bracteatis capitulis globosis, legumine plano lineare monili- 
orme valvulis coriaceis intus tenuiter pulposo.—This very 
variable species should probably include the 4. Nilotica, and 
A. vera of different authors, if, as is maintained by many, 
the downy or smooth pod is not a specific distinction. The 
following are the principal forms I have seen :— 
a. tomentosa, ramis petiolis pedunculisque dense to- 
mentosis, spinis rectis, legumine diu (etiam maturo ?) cano- 
tomentoso.— A. Arabica, Guillem. Fl. Seneg. i. 250, 
and of most African authors.—Senegambia, Heudelot and 
others. 
B Kraussiana, ramis petiolis pedunculisque dense tomento- 
sis, spinis validis subrecurvis, legumine juniore tomentoso 
demum sublevigato.—Port Natal, Krauss, n. 69. 
y Nilotica, ramis petiolis pedunculisque glabris v. leviter 
puberulis, legumine (etiam juniore ?) glaberrimo.—.4. Nilotica 
Delile, Fl. Æg. Ill. 31.—.4. vera, Willd. Spec. iv. 1085.— 
Common in Egypt, Sieber, Bove, Aucher-Eloy, n. 4371, &c. 
ò Indica, ramis petiolis pedunculisque glabris, pinnis laxis 
distantibus, legumine etiam maturo cano-tomentoso. — 
Mimosa Arabica, Roxb., Fl. Corom. ii. t. 149.—E. Indian 
Peninsula and Ceylon. 
256. A gummifera (Willd. Spec. iv., 1056,) glabra, spinis 
rectis validis, ramulis teretibus, pinnis unijugis, foliolis 
6-jugis linearibus obtusis, pedunculis axillaribus, capitulis 
oblongis, legumine lineare plano submoniliformi tomentoso. 
—Unknown to me, but said to be allied to 4. Arabica, by the 
pod, differing in foliage and inflorescence.—M ogador, Brous- 
sonet. — A. gummifera of Delile, is probably a different 
species. 
257. A. coronillefolia (Desf. Cat. Hort. Par., ed. 2, 207,) 
