﻿504 MR. G. BENTHAM ON THE MIMOSE^. [Acacia. 



Very near the more glabrous forms of the American A. macracantha, hut with whiter spines, a paler 

 more rigid foliage, and much broader and thicker glabrous pod. The annular bract is often a little below 



■ 



the summit of the peduncle. 



308. A. H^MATOXYLON, TFUld. Umm. Sort. Berol. 1056. Cano-tomentosa. Spinas 

 auctge longge, tenues. Pinnse 8-19-jug0e, vix 4 lin. longae ; foliola 18-24-juga, imbricata, 

 obtusa, vix J lin. longa. Legumen lineare, falcatum, demum subtereti-tomentosum, 

 3-4 lin. latum. — Harv. et Sond. Fl. Cap. ii. 280. 



A. atomiphylla, Burch.! Trav. i. 341. 



Hab. ExtrJ^tropical South Africa. 



A species readily known by the minute crowded leaflets- 



Subseries 2. Medibracteatge. Bractem exteriores in involucellum annulare dentatnm 

 connatce, in medio pedunculo paullo altius v. inferius situm, persistens v. cadticum, rarius 

 deficiens. Capitula glohosa^ rarius ovata. Legumen sceplssime {interdum tardius) bivalve, 

 inttts continuum V. valvis suhplanis inter semina clausum, nee farctum. 



A. Heteracanthae. Spinm mhiores [interdtim rara) plus minus recur vcb ; auctcB scepius 

 numeroscB rectce. Legumen maturum scepe iurgidum, v. suhteres. JPedunculi axillares. 



* 



Legumen rectum, v. curvulum, latiusculum. 



309. A. HEBECLADA, JDC. ! Cat. Sort. Monsp. 73 ; I'rod. ii. 461. Piloso-hispidula. 

 Spinse minores subulato-conicae recurvae, auctaj paucse v. plerseque rectse. Pinnae 3-7- 

 jugse ; foliola 7-15-juga, oblongo-linearia, obtusa, 1^-2 lin. lonsja. Involucellum in medio 



pedunculo v. inferius, caducum .v. obsoletum. Legumen rectum v. obliquum, crassissi- 

 mum, 2J-6 poll, longum, 1 poll, latum, flavescens, oblique venosum, valvis turgidis 

 crasso-coriaceis.~If«n7. et Sond. Fl. Cap. ii. 280 ; Ollv. Fl. Trop. Afr. ii. 348. 



A. stolonifera, Burch. ! Trav. ii. 241. 



Hah. Subtropical South -central Africa. 



4 



310. A. MATJBOCE AN A, i) C. .^ Cat Sort. Monsp. 74; :Prod. ii. 461. Tenuiter cano- 

 pubescens. Spinee minores aculeiformes recurvse, auct« paucse rect^. Pinnse 3-8- 

 jugse ; foliola 10-20-juga, oblongo-linearia, ad 2 lin. longa. Involucellum infra medium 



pedunculi caducum. Legumen immaturum planum, pubescens, 3-pollicare, 5 lin. latum, 

 valvis crasso-coriaceis. 



Mimosa 



Sab. Extratropical North Africa : Morocco, Desfontaines 



fruit 



311. A. Edgeworthii, T. Anders. I Fl. Aden. 18, in Journ. Linn. Soc. v. Suppl. Cano- 

 puberula. Spmse minores paucaB subrecurvge, plerseque auct^ rect^, vaHdte, |-l-polli 



terfetes 



PmnsB 3-6-jugae ; foUola 6-10-juga. oUonga, ad 2 lin. longa. Involu 

 cellum supra medium pedunculi t. (caducum ?). Legumen turgidum, y. subteres 

 - um, cano-tomentosum, 3-4-pol]icare, 4-5 lin. latum, obscure striato-venosum. tardius 



debiscens 



Mey 



Hah. Arabia : Aden, Edgeworth, T. Thomson, T. Anderson, and others 



