NOTES ON MIMOSEiE. 107 



In Andrieux's Mexican collection there are two species 

 from Acatlan, (n. 403 and 393) both very distinct from any 

 others known to me ; but as the one has the stipules and 

 flowers of a Calliandra, with the leaves and glands of a 

 Pithecolobium, and the other, on the contrary, has the 

 flowers and stipules of a Pithecolobium, with the leaves of a 

 Calliandra, I refrain from describing them until the fruit 

 shall be known to determine their genus. 



P. trapezifolium, p. 204. — Mimosa atakta, Steud. Flora, 

 1843, p. 758, after which, add : 



P. Benthamianum, Miq. Linnsea, 18, p. 592, from Surinam, 

 is said to be between P. trapezifolium and P. lusorium, two 

 species which are perhaps already too closely allied. 



P. lusorium, p. 204.— Near Villa Rica, Riedel. 



After P. subacutum, p. 210, add: 



The Inga elliptica, Blum. I. leucoxylon, Hort. Bog., I. pur- 

 purascens, Hort. Bog., I. falcifolia, Hassk., and I. borbonica, 

 Hassk., Hort. Bog. p. 291, 292, are all probably Pithecolobia 

 belonging to the section Clypearia. 



P. glomeratum, p. 213. — British Guiana, Schomburgk, 2nd 

 Coll. n. 469 (758). Closely allied to this species is : 



P. cognatum. — Inga cognata, Schlecht. Linneea 12, p. 560. 

 — Hot region of Mexico, Schiede. The common petiole is 

 so short, that the leaves appear at first sight to be simply 

 pinnate. 



P. lasiopus, p. 214.— Inga ramiflora, Steud. Flora, 1843, 

 p. 759. 



P. cauliflorum, p. 214. — To this species appear to be refer- 

 able Schomburgk's specimens, 2nd Coll. n. 822 (1415). 



After P. auriculatum, p. 217, add: 



P. longiflorum, sp. n. ; ramulis petiolisque ferrugineo- 

 tomentellis, pinnis sub-5-jugis, foliolis 12-20-jugis oblique 

 rhombeis ad angulum interiorem seepe obtuse auriculatis 

 utrinque glabris ultimis falcato-oblongis, pedunculis axilla- 

 ribus, floribus maximis minute ferrugineo-tomentellis, corolla 

 calyce subquadruplo longiore, ovario sessili glabro. Affinis 

 P. auriculato et P. adianthifolii 3 folia fere prioris, flore potius 



i 2 



