314 XL. LEGUMINOSiE. [Acacia. 



h 



Glabrous, often viscid. Phyllodia rigid, narrow, obtuse, with few 

 prominent, more or less anastomosing nerves. 

 Phyllodia f to 1 in. long. Veins scarcely anastomosing. Se- 

 pals free. 



Nerves prominent. Peduncles glabrous ....... 189. A. sclerophylla. 



Nerves faint. Peduncles tpmentose . * 190. A.farinosa. 



Phyllodia 1^ to 2 in. long. Veius more anastomosing. Sepals 



very thin, united 191. A, WhaniL 



Very viscid. Nerves or veins numerous. 

 Nerves parallel scarcely anastomosing. 



Phyllodia narrow-linear 193. A. viscidula. 



Phyllodia linear-lanceolate or oblong *. . , \^%. A. Iriophijfla. 



Reticulate veins very prominent, anastomosing with the nerves . 195. A, dicfyophleba. 

 Not viscid. Nerves or veins usually numerous. 



Phyllodia nearly straight, coriaceous, many-nerved, strongly re- 

 ticulate. ■ 



Phyllodia oblong-lanceola+e. Panicle folde<l and thickened 



under the seed (Eastern species) . . ■ 196. A. vennlosa. 



Phyllodia oblong, obtuse. Fuuicle encircling the seed in a 



double fold (Western species) 197. ^. cyclops. 



Phyllodia falcate-oblong or lanceolate, obtu?e. Veins nume- 

 rous. Funicle encircling the seed (Eastern species) . . 198. A. melanoxylon. 

 Phyllodia long and falcate, coriaceous. 



Eeticulate veius numerous. 



Pod broad. Funicle encircling the seed in a double fold . 198. A, mehnoxfjlon. 

 Pod narrow, twisted. Funicle folded under the seed . . 199. ^. implexa. 



Reticniate veins few, scarcely conspicuous, nerves several, fine 200. A, harpophjlU. 

 Phyllodia rather thin, straight, with several nerves and few fine 

 intermediate veins. 



Branches terete 201. A. exceUa, 



Branches flattened, 2-edged or 2- winged ...,..- 202. A. complanata. 



G. Dimidiatse.— P//j///o^£^, usualli/ hroad, and often long, falcate or very ohliqney 

 with 2, 3, or 4 prominent distant nerves, and reticulately penniveined l^etweeu them. 

 Glabrous. Phyllodia rather thin (3 to 4 in.), nower-heads in 

 axillary racemes growing out into leafy branches. Pod 6 to 8 

 lines broad 203. A, hmervata. 



Glabrous. Phyllodia coriaceous, long.falcate (6 to 8 in.). Flower- 



heads in axillarj^ clusters or very short racemes 204. A. latcscens. 



Hoary or glaucous. Phyllodia large, broad (3 to 4 in.). Pod . ^ 



above 1 in. broad 205. A. sencata. 



Young shoots hoary oryellowish-tomentose. Phyllodia large broad 



. (4 to 8 in.). Flower-heads small, in a terminal panicle. Pod J 

 in. broad . . . 2{)^. A^flavescens. 



Woolly or velvety-tomentose. Phyllodia obovatc or orbicular (li ^. . 



to 2 in.). Flower-heads in a terminal raceme 207. ^- retivenia. 



Series VIII. ^^xl^RorBt.— Phyllodia vertically flattened or in ^ f'"" '^^'f'J^^^^^ 

 severaLnerved or rarely \-nerved, obtvse acute or pointed, rarely sligldhj pungent, 

 in cylindrical dense or interrupted spikes, rarely, when sessile, shortly ohloiig^ 



A. IM^X^xXi^.— Phyllodia fiat, often short, straight oblique or shortly falcate. ^P^ ^^ 

 dense {except A. megalantha). Flowers b-merous. Species all tropical except 

 tchieh are eastern. 



Phyllodia small, rarely above J in. long, undulate. 



Phyllodia mostly clustered, narrow, 2 to 4 lines long. Spikes «/;/>rtf. 



sessile. Sepals free . . . . 208. ^. ^'^^^«^i/^'^ 



Phyllodia broad, about k iii- long. Spikes pediuiculate. Calyx , • 



Binuute-lSothed. Seeds oblique 209. X Jhci/^ann^ 



