126 Bulletin of the University of Texas 
armed branches, thin light gray bark which bears numerous 
conic cork based prickles. Leaves deciduous, alternate, un- 
equally pinnate, leaflets 7-19, taper pointed and shallowly 
toothed. Flowers in terminal panicles, dioecious. Fruit © 
globose capsules borne in dense clusters. 
Virginia to Florida and extending along the coast to Texas, 
and north to Arkansas. 
2. Fagara Fagara (lL.) Small. Wild Lime. A shrub or 
small evergreen tree 25°-30° high, with thin gray cork ridged 
bark, and thorny branches. Leaves evergreen, unequally pin- 
nate; leaflets 5-11, sessile with axis between the leaflets 
winged. Flowers yellowish in axillary cymes. Fruit an ovoid, 
rough capsule. 
A tropical species found in our area from Matagorda Bay 
to the Rio Grande River. 
HELIETTA. Tulasne. 
1. Helietta parviflora Bentham. A shrub or small tree 
20°-25° high with erect slender trunk, ascending branches, 
and thin brown bark. Leaves evergreen, small, trifoliate; 
leaflets sessile, leathery, obovate. Flowers in axillary cymes. 
Fruit a samara, with wing divided into 3-4 parts. 
_ A Mexican species extending into our area at Rio Grande 
City. | 
PTELEA L. Hop Tree. 
1. Ptelea trifoliata L. Hop Tree. Wafer Ash. A shrub 
or sometimes a small round topped tree 20° high with smooth, 
sray, bitter bark. Leaves deciduous, alternate, trifoliate; 
leaflets sessile, taper pointed, strong scented when bruised. 
Flowers greenish white in terminal cymes. Fruit a 2-seeded 
broad winged samara. 
Ontario to Florida, Minnesota, Texas, New Mexico, Colo- 
rado and northern Mexico. There is a wide range of varia- 
bility in the shape and size of the leaves of the species. Fre- 
quently cultivated for ornament. 
