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^cadcf.-] MR. G. BENTHAM ON THE MIMOSE^E 



499 



A. Browniana, Wendl. in Flora, 1819, 139 

 A. Endlicheri, Meissn. in PI. Preiss. i. 31. 



Kab. Soutli-west Australia. 



*** Semma transversa. Spicw cijUndracecB. Inermes. 



■ _ 



295. A. Drummondii, Lindl. ! Swan Biv. App. 15. Tenuiter cano-pubescens. Pinnae 

 2-jiig8e ; f oliola 2-6-juga, oblongo-linearia, 3-4 lin. longa. Spicse ^1 -p oil i cares. Calyx 

 pubescens, lobatus. Legumen subpoUicare, ad 3 lin. latum, glabrum v. pubescens, mar- 

 ginibus incrassatis. — Lem. Jard. Fleur. t. 378 ; Bot. Mag. t. 5191 ; Benth. FL Austral. 

 ii. 419. 



A. Candolleana, Meissn. ! in PL Preiss. ii. 206. 



Hah. South-west Australia. 



Amongst MaxwelFs specimens there appear to be a small-flowered variety, and another with short, 

 almost ovoid spikes, the specimens of both insufficient for correct determination. 



Series 4. Gtjmmifeh^. 



Prutices v. arbores, stipulis nonnullis v. omnibus spincsccntibus, rrctcriim incrmcs. 

 Folia bipinnata. Pedunculi monostachyi, axillares, subfasciculati v. ad apices ramorum 

 subracemosi, rarius paniculati. Capitula globosa v. spicfe cylindraceae. Legumcii 



varium 



When 



iferds, and Vvhjarcs, are 



armed 



readily enough distinguished : the first have abortive peduncles converted into spines, the second have 

 their stipules spinescent, in both casps without prickles ; and the Vulgares have infrastipukr or scattered 

 prickles without spines. But the majority of the Pulchella are entirely ui 



Australian, with a peculiar bushy habit. Of the Gummifera, it is very rare to see a si)ecimen with the 

 hardened or prickly stipules entirely undeveloped ; and I believe the A. choriophylla i8 the only one in 

 which I could not at first detect them, and hesitated whether to refer it to the Gummifera or to the 

 Vulgares; but even here I have found a few minute pungent pointed stipules. Several of the VuJyartM 

 are occasionally, and perhaps one or two species entirely, without prickles j but these are tropica! or sub- 

 tropical American, and not likely to be confounded with the Australian PulchdhB. On the other band 

 the spinescent stipules of the Gummifer^, when recurved or dilated at the base, as in A. Manror.ana, 



,1 ._ ..ii-n-, ;i- i.:„ '.^\.^A A»^w, fTi^ I'nfrnftfinnlar nricklcs of somc of thc Vuhares. 



Sabseiies 1. Suuimibracteatae. Bractea exteriores m involucrum annulare denlobi.n 

 connatcB, ad apicem pedunculi capHulo arete approximatum v. parum dhtans. Capitula 

 globosa. Legumen crassum, turgidum v. rarhu^ planum, non v. vlv dchiscens, intiis pvl,,a 

 V. mbstantia suberoso-spongiosa semina segregante /"return. 



group, especially the A. farne.siana, have been proposed as a distmct genus 



Amott 



genus 



or subgenus by severd others. But they are 

 viruritoaVy'se'pa^ared" from other Gummifer^ : and a nearly similar pod, the only character relied 



onT occurs in some of the Australian PAyM«.<.. Grisebach ...dudes .„ h» «ct,on I acMl.a the 

 A. arabica, -which has the pod quite continuous inside. 



• Americauce v. CoemoTioUtatKB . 



296 



. A. PES.NATULA, Benth. ! m Hook. Und. Jom-n i. 390. Tomentoso-pubesceM t 



