162 FLORA OF TEXAS. 



with yellow wood. Leaves bristly serrate, often reduced 

 to branching spines. Floicers racemose, yellow. Berries 

 acid. 



B. TRIFOLIATA. Lcttves coriaceous and rigid; leaflets 

 1-2' long, the middle one larger and longer than the other 

 two; ^je/io/e short, leaves terminatiug in a spiny apex. 

 Racemes short, berries red. Austin, thence west to Kew 

 Mexi CO. — Bigeloiv. 



B. SwASEYii, Buckley. Leaflets 5-9, smooth, light- 

 green above, glaucous below, sessile, the basal smallest, 

 veins irregular, much branched, and reticular, repand, 

 dentate, teeth large and spinose, leaves alternate, leaflets 

 opposite, fasciculated at the base of the smaller branches, 

 but rather scattered on the terminal growing ones ; leaf 

 2-3 inches long, width 1-1^ inches, leaflets ^-1 inch long 

 and about J- inch wide, terminal leaflet sometimes petiolate, 

 fruit stems 1-2 inches long and 2-3 branched, near the 

 summit bractose, bracts clasping and acute, mucronate, 

 fruit nearly round, about ^ an inch in diameter, juicy, and 

 of a sliglitly acid agreeable taste, 6-9-seeded, seeds smooth, 

 oblong and blunt at both ends, fruit subtransparent, yel- 

 lowish-white tinged with red. Shruh, evergreen, 2-3 feet 

 high, branches small, smooth, and reddish brown ; large 

 stems rough and grayish brown. Flowers February and 

 March. Fruit ripe about the first part of June. Western 

 Texas on the Perdinales River. In honor of Dr. Swasey, 

 of Mobile, Ala. 



B. TRIFOLIOLATA, Torr. Leaves ternate, smootli, rigid, 

 and spinose, petiolate, evergreen, bluish green, with veins 

 of a paler and whitish color. Floicers yellow, last of 

 February and first of March. Pedicels aggregated in 2's 

 and 5's, 4-6 lines long, berries small, red, and edible. 

 Grows in dense clumps 4-6 feet high. Limestone hills, 

 Austin and vicinity. 



