RUTACEAE. 167 
TripHASIA. Limeberry. 
(Family Rutaceae). 
Tender shrubs with paired nee- 
dle-like branch-spines: evergreen. 
Twigs terete, rather slender: pith 
small, white, more or less angu- 
lar, homogeneous. Buds minute, 
solitary, sessile, depressed-globose, 
obscure or developed into the 
short-flower-stalk, the end-bud ab- 
sent. Leaf-scars very small, alter- 
nate, half-elliptical, low: bundle- 
trace 1, crescent-shaped, com- 
pound: _ stipule-scars lacking. 
Leaves short-stalked, digitate, pel- 
lucid-dotted. 
The limeberry is used for hedges 
and shrubbery where the winters 
are sufficiently mild, and is said 
to be tolerant of a considerable 
amount of salt in the soil. 
The generic name Limonia has 
been used for Triphasia, which is 
considered separable from that genus. The limeberry is 
spoken of sometimes as a citrus, which is proper only when 
the name is used in the most general sense and even then 
may lead to confusion with the deciduous hardy orange, 
Poncirus, which has been called Citrus trifoliata. 
Glabrescent: leaflets 3. T. trifolia. 
