308 XL. LEGUMiNOs.^. [Jcacia, 



Habit aud phyllodia of A, pilosa. Bracts more acuminate. 



Stipules with a Lroad base , , 8G. A.Gregorli, 



Undershrub. Phyllo'dia nan*o\v, incurved and oblig^ue, scarcely 



narrowed at the base. Stipules setaceous . . . , . . 88. A, cnspula. 

 Phyllodia of -4. crlspula. Stipules like Hic phyllodia and about 



half their length . .,*.,. 89. A. crassisiijpnla. 



Some garden specimens of A. armafa have some of the phyllodia 2-nervcd ; the other 2- 



or more uerved species, formerly included in Armatce, are now transferred to the Flan- 

 n erves, 



107, ^. hispidula, and 108, ^. unduUfoIia, among Brevifol'ue, have the uudulate phyl- 

 lodia, hut not the stipules of Armada, and 120, A. sentis^ and 121, A. denUfera, amoag 

 AngnstifoHm^ have occasionally spinesceut stipules. 



C Triangulares- — Shrubs ustiaUg rigid and occauonally spinescent, Phyllodia 

 small, rigid, the nerve either near the lower margin or rarehj central, the upper side more 

 or less dilated, the margin rounded or angular, loith iisnalhj a gland at the angle. Sti- 

 pules spinescetit or setaceous or mikute, Feduncles X-headed. 



Phyllodia tapering to a pungent point, the glandular angle below 

 the middle or diverging from the base. 

 Phyllodia hastate or lanceolate, the nerve nearly central. Flowers 

 4-merous, 3 fo 5 (usually 4) in the head. 



Petals glabrous 90. ^. hastdata. 



Petals densely villous . » 9L ^. horridida. 



Phyllodia semilauceolate or divaricately 2-lobedj the nerve near 

 the lower margin. 



Flowers 4-merou5, 8 to 12 in the head 93. ^. dim-gens. 



Flowers 5.merous, 30 or more. in the head 93. ^. vomeri/ormis. 



Phyllodia truneate-trlaugular or trapezoid, the nerve often exceu- 

 tncal, produced into a small pungent point, the upper angle 

 above the middle. 



Rowers 4-racrous, 2, rarely 3 or 4 in the head 94. J. tipra. 



Flowers 4-merous, 6 ta 10 or more in the head. 



Phyllodia triangular or i^homhoidal, not much longer than 



broad at the top 9o. A. deeipiens. 



Phyllodia cuneate, much longer than broad ...'-..' 96. A. cuneata. 

 Flowers mostly 5-merous, 8 to 20 or more in the head. Glan- 

 dular angles of the phyllodia broad and rouuded, the pointed 

 angle at the end of the lower side scarcely pungent. 

 Calyx lobed. 



Phyllodia very coriaceous. Petals hirsute 97- ^- dilatata. 



Phyllodia usually small, slightly coriaceous. Petals gla- 

 brous. 



Phyllodia ohovate or broadly cuneate-obloug .... 98. i. bidentatcL 

 Phyllodia narrow- cuneate oblonn- . . . 99. -4. acanihodada. 



Sepals distinct, spathulate. Phyllodia scarcely triangular. 

 (See the first 3 species of the following subseries.) 



D. Brevifoliae.— .S-^r;/^^, never sphieseent. PhModia either Iroad ovate or falcate, 

 or narrow^ oolong or linear -' ^ ^ . - . y - - . -t/-«-. r^* %t)im a 



•> s^^rt (under 1 in. or larger in A. aneepsj, ohtm or m/i^ 

 small recuKved innocuous point, occasignallu undulate and more pointed, Stipules minute 

 or none. Peduncles l-headed. ^ - 



Phyllodia from obovate-orbicular to linear, obtuse but with the 

 nerve enduig m a small recurved point. Sepals free, linear- 

 spathuiate. *■ 



Phyllodia rarely exceeding ^ in. Brauches scarcely angular. 

 Flowers 10 to 15 or rarely 20 in the head (Eastern species). 



