Acacia,'] 



XL. LEGUMINOS^. 305 



Phj-llodia scattered, erect or slightly spreading, often 1 in. 



long Peduncles slender, mostly ck^^^^^ ^^- A- ^euistoides. 



^ i-Hyilodia scattered, divaricate, rather broader or with a 



small glandular angle at the base. 

 Petals without any prominent nerve. Peduncles slender 35. A, ingrata. 

 Petals with a prominent midrib. Peduncles slender. 



ruuicle liliform . oft -*•„■„ • 



J^etals without any prominent nerve. Heads almost sessile 37. A. asparagoides, 

 l^ee also 93, A. vomeriformis, with the glandular angle 

 more prominent.) 

 flowers mostly Unerom or S-merous. 



Sepals free, narrow. Funicle shortly thickened SS. A, ienui/oHa. 



Calyx toothed or lobed. 



Peduncles longer than the flower-bead. 



Phyllodia linear. Puuicle folded and tLickened under 



p.^^f',^^^,. Z^. A. diffusa. 



-liiyJiodialmear-lanceolafe, broad at the base. Funicle 



dilated and clasping the base of the seed *. . , . 40. ^. rumcola, 

 ilowci'-heads almost sessile, few-flowered. 



Flowers 6 to 10, mostly 4-merous 41. ^. rhigiophylla. 



i^lowers 1 to 4, mostly 3-merous 45. ^. axillaris, 



. opicatee. Fhyllodia 1- to Z-nerved, Flowers^- or Z-meroitsin cylijidrical oblong 

 or ovoid spikes. ^ u ^ 



Spikes or heads few-flowered, almost sessile. 



{, owers 6 to 10, mostly 4-merous . A\. A.rhigiophjUa. 



SnlU . "^ ^' ""^^^^^^ ^-"^^i"*^"* .......... : ^h. A. axillaris. 



^P^fces pedunculate, many-flowered. 



^pi^^,|^'^'!l"^5^^*^^ o»- ovoid, dense. Flowers mostly 4-mcrous. 



Qyodiahncar-lanceolatc, very rigid, 3- or 4-nerved and striate 42. A. oxgcedrus. 

 »>;ilo iia subulate, linear, or oblong, mostly 1-nerved and ver- 



SniV • 1^*^ • • ' AZ, A. verlicillata. 



^ ^^ interrnpted, slender. Flowers mostly 3-mcrons '. . . 44. ^. Iticeana. 



or tub // ^^^^^^ormes. — PhgUodla rarehj none^ more frequently narrow-Unear 

 ^ith sh ^/* ^^^^^^ ietragouQus or very slightly JIaliened, articulate on the stem, oUuse or 

 on WwT ^^^?^^^^^^ ^^ recurved points, 1- or several -verved, Floxcers in globular heads 

 rarpy>.L \ ^t II pediincles, or rureh/ several heads in a short raceme^ or irregularly 

 '^^^oseby the abortion of the floral phyllodia. 



8piker%^^^T^'^^^"'^''''^"^''''^'^*^^^ phyllodia, but cylindrical pr ovoid flower- 



obtuse \ ' • ^^^c^la, and a few allied Pw/gentes, have varieties with the phyllodia almost 

 ' ^rmgnigthem near to the short-kaved Calamiformes.) 



^ • ^^^^P^^yllse.— i>;^y/^(-//« none or vcfyfeia and sletider, resembling the branches. 



Rowm "^ *^ ^ ^^ ^^^ ^^^^^ 4-merous. Petals striate. Pod 4-angled 46. A. tetragonocarpa. 

 rw. ^."^^^ous, S.merous. Petals smooth. Pod not angled, 

 ^^^er-heads racemose 47. A.resilacea. 



No ' 1 ^^^^^^^^'~^h^^odia striate, with 2, 3, ot more tierves on each side. 



yoani'^* ^^ ^?^^^^^' Flower-heads in a raceme, enclosed when 

 CalvjV 1^ ^^'^"cate deciduous scales , • : 48. J. squamata. 



Phvlla!^-'''''''*^'* i*'*^"^"^- Peduncles l-hcaded. 

 L^rf liumerous. under ^ in. long, obtuse or with a short 



I^vllnl- ^^'"*^" Peduncles 3 to 4 lines long 49. A. brachyphylla, 



/ ioaia mostly nearly 1 in. long, with a hooked or recurved 



PetaT^ ^*^<^»i'icles 3 to 4 lines long. 



p.jT "^^^ow, membranous (tropical species) 50. ^. Bynoeana. 



%liod^ ^^"^^^^e antl thickened at the end (Western species) . 20. A. teretifoUa. 

 Toi /^ "^^stly H to 3 in. or longer. Peduncles xtry short. 



