BENTHAM ON MIMOSE^E. 417 



(Wall. Cat. n. 5239.) Probably introduced into Asia, and 

 Africa. 



2. h. pidverulenta, p'mnk 15 — 18-jugis, foliolis multijugis 

 parvis lineari-falcatis obtusiusculis, calyce corolla quadriiplo 

 breviore, antheris glabris. — Acacia pulvenilenta, Schieclit. ! 

 Linncea 12. 571. — Hot region of Mexico, Schiede, Berlandier, 



^ n. 288, - -a- * S-S 

 ._ A - — ^- • 



3. L. diversifolia, pinnis 4 — 17-jugis, foliolis multijugis 

 parvis lineari-falcatis approximatis nitidis subcoriaceis, calyce 

 corolla dimidio breviore, antheris pilosulis. — Acacia diversi- 

 folia, Schlecht.! LinucTea 12.571 A. trichandra, Zucc. PI. 



Nov. fasc. 2. 41. — Near Jalapa, Schiede. 



4. L. tric/iodes, pinnis 2 — 3-jugis, foliolis 2 — 5-jugis ovatis, 



calyce corolla parum breviore, antheris pilosis Acacia tri- 



chodes, Willd. et A. ; pseudotrichodes, DC. Prodr. ii. 466. — W. 

 Indies, Caraccas and Peru, Mathews, n. 47G, Cuming, n. 

 985, etc. 



The above are all the species I am acquainted with; but it 

 is possible some other decandrous AcacicB of authors may be 

 referrible to the genus, which is easily known either in flower 

 or in fruit. 



XIX. Xylia, gen. nov. 



Calyx, Corolla et Stamina fere Leucccncc. Legumen 

 sessile, oblongo-falcatum, compressum, utrinque angustatum 

 lignosum, intus inter semina septatum, seminibus transversis 

 funiculo crasso carnoso brevi affixis. 



Sp. nnica ; X. dolabrifonnis. Arbor elata, inermis, glabra 

 V. in partibus junioribus tomentoso-puberula. Stipule 

 parva?. Folia bipinnata, pinnis unijugis. Gland ula elevata, 

 nunc obscura, inter pinnas. Foliola 2— 6-juga extima sa^pe 

 semipedalia, inferiora multo minora, penninervia, supra gla- 

 bra nitida, subtus minute puberulav. glabra. Pedunculi fasci- 

 culati, axillares v. subracemosi, 2 — 3-pollicares. Capitula 

 globosa, tomentosa, magnitudine iei'G Leuccence glauc<x,^ov\h\x^ 

 dense imbricatis pallide virescentibus. Calycis dentes calloso- 

 incrassati. Corolla calyce pauUo longior, omnino LenccencB. 



Vol. IV No. 32. 3 G 



