112 
LIGtUIDAMBER-LONICERA. 
LIQUID AMBER. 19—13. (A^nentacecB.) [From Zig'uid'Mm, fluid, and aw6er, fragrant, alluding 
to the gum which distils from this tree.] 
styradjiu'a, (sweet gum-tree, M. f^.) leaves palmately-lobed ; lobes acuminate, 
serrate, with sinuses at the base of veins, villose. A resinous juice called 
liquid amber, is obtained by wounding the bark of this tree. By boiling the 
leaves a different gummy substance, called liquid storax, is obtained. 
LIRIODENDRON. 12—13. (MagnoKcB.) [From leiron, a lily, and dendron, a tree.] 
tulipif^'e'/a, (white wood, tulip-tree, y-r. J. T2.) leaves truncate at the end, with 
2 side-lobes. A beautiful flowering tree. 90-150 f. 
LISTERA. 18 — 1. (OrchidecB.) [Named from Martin Lister, physician to Queen Anne.] 
corda'ta, stem with 2 opposite, roundish, cordate leaves ; raceme loose; col- 
umn without any appendage behind ; lip elongate, 2-toolhed at the base, 
deeply bifid, the segments divaricate and acute. Swamps. Stem 4-6 i. 
Flowers distant and minute. 
convallario'ides, (lily orchis,) column porrected ; lip oblong, dilated, and ob- 
tusely 2-lobed at the extremity; stem 6 inches, very slender; root fibrous; 
flowers dark brown and green, larger than the preceding. 
LITHOSPERMUM. 5—1. {Boraginece,.') [From lithos, a stone, and sperma, seed, on account 
of the hardness of its seed.] 
arven"se, (corn gromw^ell, w. M. ©.) stem erect, branched; leaves sessile, 
lance-linear, rather acute, veinless, rough, hairy ; calyx a little shorter than 
the corolla; segments spreading ; nuts rugose; plant hispid, pilose ; flow- 
ers solitary, axillary. Fields. Introduced. 
officina'le, (common gromwell, y. M. %..) stem covered with rigid hairs ; leaves 
broad-lanceolate, acute, rough on the upper surface, hairy on the lower ; 
tube of the corolla as long as the calyx ; nuts smooth. Fields. Flowers 
axillary, pale yellow. 
mariti'mum, has blue flowers. 
denticula'tum, has purple flowers. 
LOBELIA. 5 — 1. (CavipanulacecB.) [In honour of Mathias Lobelius.] 
cardina'iis, (cardinal flower, r. Ju. 7]..) erect, simple, pubescent ; leaves lance- 
ovate, acuminate, denticulate ; racemes somewhat 1-sided, many-flowered ; 
• stamens longer than the corollas. Damp. 1-2 f. 
injla'ta, (Indian tobacco, b. Ju. ©.) erect, branching, very hirsute ; leaves 
ovate, serrate ; racemes leafy ; capsules inflated. 12-18 i. 
kaVmii, (b. Ju. ©.) slender, erect, sub-simple ; radical leaves spatulate ; cau- 
line ones linear, delicately toothed; flowers racemed, alternate, remote, pe- 
dicelled. 6-24 i. 
dortman''na, (b. Ju. I]..) leaves linear, 2-celled, fleshy, obtuse; scape neai.y 
naked ; flowers in a terminal raceme, remote, pedicelled, nodding ; leaves 
growing in a tuft about the root, spreading, recurved. Water gladiole. 
syphilitica, flowers on short pedicels, in a long, leafy raceme, large, blue. 
Bogs. 2-3 f. 
claytonia'na, stem erect, simple, pubescent; cauline leaves oblong, obtuse, 
nearly entire; radical leaves spatulate; raceme virgate, naked; floivers 
pale blue. 1-2 f. 
puberu'la, covered with silky down ; lower leaves obovate, upper lanceolate ; 
flowers spiked, alternate, sub-sessile, bright blue, smaller than the syphili- 
tica. 
Jul" gens, (native of Mexico,) leaves very long, alternate, sub-entire ; raceme 
many-flowered ; stamens and pistils as long as the corolla. 
LOLIUM. 3—2. (Gr amines.) 
peren'^ne, (M. %.) florets much longer than the calyx, unarmed, linear-oblong, 
compressed. Introduced, 18 i. 
LONICERA. 5 — 1. (CaprifolicR.) [From Lonicer, a botanist of the 16th century.] 
semper' 'vir ens, (r. y. M. ?2.) spikes with distant, nakedish whorJp ; corollas 
sub-equal; tube ventricose above ; leaves ovate and obovate, glaucous be- 
neath; upper ones connate-perfoliate ; leaves perennial. 
caprifo'lium, (honeysuckle, T^.) corollas ringent-like, terminal ; flowers crim- 
son ; sessile leaves connate-perfoliate at the top. Ex. 
