210 PENTANDRIA PENTAGYNIA. Zanthoxylum. 
muni inermi, umbellis axillaribus.—W illd. sp. pl. 4. 
p. 754. 
Z. Clava Herculis B. Linn. sp. pl. 1455. 
Z. ramiflorum. Mich. fl. amer. 2. p. 235. 
Icon. Duham. arb. 1. t. 97. F 
In shady woods, near rivers: Canada to Virginia abd ; 
Kentucky. h. April, May. v. v. A tincture of 
the bark and capsules is recommended in rheumatism / 
and tooth-ach, from which its name Tooth-ach-tree. 
tricarpon. 2. Z. aculeatum ; foliis pinnatis, foliolis petiolatis oblongo-. 
ovalibus acuminatis serrulatis basi obliquis, petiolo 
communi aculeato, capsulis ternis sessilibus. — Mic 
Jl. amer. 2. p. 235. 
In woods of Carolina and Florida, Michaux. h . July. 
v. v. in Hortis. 
272. LINUM. Gen. x 528. 
usitatissi- 1. L. foliolis calycinis ovatis acutis trinervibus, petalis cre- 
mum. natis, foliis lanceolatis alternis, caule subsolitario.— 
Willd. sp. pl. 1. p. 1533. 
Icon. Engl. bot. 1357. 
Common flax is frequently found in old fields, appa- 
rently indigenous. ©. June, July. v.v. Flowers blue. 
2. L. foliolis calycinis ovatis acuminatis, poe eei ; 
apice rotundatis, foliis sparsis lanceolato-linearibus - 
mucronatis, caulibus altis numerosis. : 
In the valleys: of the Rocky-mountains and on the banks : 
of the Missouri. M. Lewis. Y. July. v.v. Flow- 
ers large, blue ; a véry good perennial, and it probably 
might become an useful plant if cultivated. — 2: 
virginicum. — 3. L. foliolis calycynis acutis. panicula. terminali, leribos id 
4 remote alternis, foliis lineari-lanceolatis sparsis : 
 calibus ovatis.— Willd. sp. pl. 1p- 1538. — 
On dry sunny hills and fields ; New York to Virginia 
Q.. July, Aug. V... Flowers small, small, yellow. | dli ena 
rigidum. 4. L. foliolis calycinis ovatis acuminatis trinervibus ciliatis, 
mue oblongis. angustissimis, foliis rigide-erectis Pe 
Maie: the. Missouri. Nuttall. v. ES “Flowers m 
yellow. | 
. 
Lewisii. 
273. DROSERA. iwi pl. 531. T | 
rotundifolia, 1. D. scapis radicatis simplicibus, foliis wai > 
tap attenuatis, petiolis elongatis bT: 
p. 1543. Mich. fl, amer. 1. p. 186. 
