350 BENTHAM ON MIMOSEiE. 



bus obtusis brevibus, spicis densis breviter pedunculatis folia 

 superantibus, legumine compresso nunc compressissimo arcu- 

 ato. — SpinjE saepius minores quam in prsecedentibus, inter- 

 dum omnino desunt. Foliola 2 — 3 lin. longa, rarius longi- 

 oi-a, — Algarobia dulcis, Benth. PL Hartweg. 13. P. pallida, 

 Kunth. Mini. 106. — Common in Mexico. 



/3. domingefisis, foliolis majoribus submembranaceis. — P. 

 domingensis, DC. ! Prodr. v. ii. p. 447. — P. hracteolata, DC. 

 1. c? — P. aimanensis, Kunth. Mim. 106? — St Domingo, 

 and Isle of St Martha, Bertero ; Cumana, Humboldt and Bon- 

 pland; Guayaquil, Hall; Carthagena, Billberg. — Probably 

 a cultivated form. 



y. australis ; foliolis minoribus legumine latiore crassiore. 



—P. affinis, Spreng. Syst. v, ii. p. 326 South Brazil, 



Monte Video, and Buenos Ayres, Sello, Tweedie, Gillies, 

 and others. 



To the abo%'e varieties should probably be added the five 

 preceding species, most of them known under the name of 

 Algarobo, very common along the chain of the Andes from 

 Buenos Ayres and Mendoza to Mexico, and offering gene- 

 rally "a great many varieties." 



11. P. inermis (Humb. et Kunth, Nov. Gen. et Sp. v. vi. 

 p. 307.), inermis, ramulis glabris, pinnis 3-jugis, foliolis 

 G — 1 3-jugis lineari-oblongis subtus tenuissime puberulis. — 

 Peru, Humboldt and Bonpland. — Probably a thornless form of 

 P. dulcis, /3. 



12. P. limensis (sp. n.), ramulis foliisque pubescentibus, 

 spinis axillaribus solitariis geminisve validis rectis, pinnis 

 2 — 3-jugis, rarius unijugis, foliolis 6 — 12-jugis approximatis 

 parvis oblongis obtusis, spicis densis folio multo longioribus, 

 legumine brevi crasso subtereti.— Foliola 1^ — 2^ lin. longa, 

 utrinque puberula. Spicse sape 4-poIlicares. Flores P. dul- 

 cis, calyces tamen proportione corollse brev lores. Legumen 

 unicum vidi rectum 2| poll, longum, 5 lin. latum, minus com- 

 pressum quam in caeteris hujus sectionis. — Lima, Malhetos, 

 Cuming, n. 974.— This appears to me to be really distinct 

 from any of the preceding. 



