LOBELIA DORTMANNA. WATER LOBELIA.
LOBELIA Dortmanna ; foliis linearibus bilocularibus integerrimis, scapo subnudo, floribus racemosis.
LOBELIA Dortmanna. Linn. Sp. PL p . 1318. Huds. Angl. p. 377. Light/. Scot.p. 505. t. 2 i
With. Bot. Arr. ed. 4. ml. 2 . p. 242. (Ed. Dan. t. 39. Willd. Sp. PI. ml. l . p. 938.
Hoffm. Germ. ed. 2 . ml. l . P . II. p. 166. Smith FI. Brit. p. 242. Engl. Bot. t. l4o!
Decand. Fl. Fr. ed. 3. ml. 3. p. 715. FI. Gall. Syn. p. 255. Wahl. Lapp. p. 212.
Pers. Syn. PI. ml. S. p. SI 1. Ait. Hort. Kero. ed. 2. ml. 1 . ».336. Svensk Bot.
t. 452. Hook. Fl. Scot. P . I. p . 76.
GLADIOLUS lacustris Dortmartni. Water Gladiole. Raii Syn. *287.
Dut. Water lokjes. Fr. Lobelie tubulaire. Germ. Die Wasser-Lobelie. Welsh. Bidawglys dyfrdrig.
Class a nd Ord er. PENTANDRIA MONOGYNIA.
[Natural Ord e r . CAMPANULACEJE, J uss., Decand., Br., Hook.']
Gen. Char. Corolla tubo bine fisso (raro integro); limbo quinquepartito. Anthera connataj. Stigma bilo-
bum (nunc indivisum). Capsula bilocularis (raro tri-loc.), apice supero bivalvi. Br. 6
Gen. Char. Corolla with the tube cleft on one side (rarely entire); the limb five-partite. Anthers connate
Stigma two-lobed (sometimes undivided). Capsule two-celled (rarely three-celled), two-valved at the superior
apex. Br. 1
Radix perennis, carnosa, crassa, prasmorsa, fibras nu-
merosas albas simplices emittens.
Foil a fere omnino radicalia, submersa, lactescentia, bi- vel
triuncialia, erecto-patentia, linearia, succulenta,
compressa, dorso facieque superna tenuissime
canaliculata, viridia, integerrima, ad apicem re-
curvata, compressissima, intus bilocularia, disse-
pimento longitudinal].
Scapus solitarius, magis minusveemersus, pedalisetiam
ad tripedalem, foliis paucis brevibus vel bracteis
foliaceis hie illic instructus, erectus, flexuosus,
teres, fistulosus, viridis, vel viridi-purpurascens.
Flores terminales, remoti, racemosi, penduli, racemis
tri- ad sex-floris.
Calyx superus, quinquepartitus, segmentis lineari-su-
bulatis, brevibus, curvatim erecto-patentibus.
Corolla pallide purpureo-casrulea, tubulosa, superne
fissa, apice quinquefida, laciniis duabus superiori-
bus linearibus minoribus, recurvatis, tribus infe-
rioribus his quadruplo majoribus, ovato-lanceola-
tis,rectiusculis.
Stamin Aquinque: Filamenta corollas tubo breviora, in-
sertione intequalia, scilicet, quatuor infra, unum
supra stylum, pallide purpurascentia; Antheras
coalite, casruleas, margine ad apicem pulcherrime
ciliato ciliis albis.
GERMENinferum, obconicum, sulcatum, glabrum; Stylus
purpurascens, staminibus brevior; Stigma obli-
quum, bilobum, planiusculum, margine ciliatum.
Pericarpium: Capsula plusquam semi-infera, oblonga,
basi angustata; calyce persistente cincta, bilocularis,
apice supero bivalvi.
Receptacula dissepimento longitudinaliter affixa.
Semina numerosa, oblongo-obovata, fusca, punctis ele-
vatis notata; Albumen camosum.
embryo inversus, rectus, majusculus; Radicula infera. j
Eg". 1. Front view of a flower. Fig. 2. Flower deprived
rtg. 5. Section of a leaf, to show the bilocular structu
magnified. Fig. 8. Section of a capsule. Fig. 9. Si'
Front view of the same. Fig. l l . Seed. Fig. 12 . S
more or less magnified.
Root perennial, fleshy, thick, abrupt, throwing out numerous
white simple fibres.
L eaves almost entirely radical, submerged, lactescent
two to three inches long, erecto-patent, linear’
succulent, compressed, slightly grooved on each
side, green, entire, recurved at the extremity and
very much compressed, within two-celled, having
a longitudinal dissepiment.
Scape solitary, more or less rising above the surface of
the water, a foot or even three feet high, here
and there furnished with a few short leaves on
foliaceous bracteas, erect, flexuose, rounded, fis-
tulose, green, or purplish-green.
Flowers terminal, remote, racemed, pendulous, the
racemes three- to six-flowered.
Calyx superior, five-partite, having the segments linear-
subulate, short, curved and erecto-patent.
Corolla pale purplish blue, tubular, cleft above, quin-
quefid at the extremity, with the two superior
segments linear, smaller, recurved, the three lower
ones four times larger than these, ovato-lanceolate
straightish.
Stamens five: Filaments shorter than the tube of the
i corolla, unequal in their insertion, namely, four
placed beneath, one above the style, pale pur-
J plish; Anthers united, blue, the margin and apex
• beautifully ciliated with white hairs.
Germen inferior, obconical, furrowed, glabrous; Style
purplish, shorter than the stamens; Stigma
oblique, two-lobed, nearly plane, with the margin
ciliated.
Pe r ica rp : Capsule more than half inferior, oblong,
narrowed at the base; surrounded with the persistent
calyx, two-celled, two-valved at the superior
extremity.
Receptacles attached longitudinally to the dissepiment.
■
Seeds numerous, oblongo-obovate, brown, marked with
elevated dots; Albumen fleshy.
Embryo inverted, erect, rather large; Radicle inferior.
of its corolla. Fig. 3. Stigma. Fig. 4 Single anther.
'e- _ r ig . b. Capsule, natural size. Fig. 7. The same
e view of a capsule opening a t the extremity. Fig. lo!
iction of a seed, to show the e m b r y o all but fig . 6.
c ■ H ■ r r - lw U1 uu‘ wiaiiu, . . M.w u.vuv... .uumuuat v.uu. ___
”ear thj "!“rS“'s ° f stm kkes: ,he l« « a being wholly under water, and"the scape,'foofoor
the H H accommodating itself to the depth of the lakeI in all cases the flower rising above the surface In
lake < 'C I"" at Aviemore, North Britain, where the Nuphar p u m l / g Z s L t h f Z t e s t
yellow Bw HM b I b Pal? “ d del,ca‘e bl.osson;s of tbis ■Zo4f “ with the darkfreen leaves and deep
or Six inch™, l ie * * P‘ ’ H ^ "'ber0 dle ,,Iter ™“s M1 three * « deep = the flowerstalk being five
diftreof is n0t H h B ,0 tbat? f Lobelia u rem; but that of its leaves is widely
they are conroosed^ft lh° Se »1 I f f0"6™61’ b“f als° riom the foliage of almost every other known plant: for
formed of a simole HI HB Hi recul.',.ed’Band remarkably compressed at the extremity. The scape is
wires hnw.. P 1 b lb , capsule is, as Mr. Brown justly observes, two-valved in the superior extremity ■ the
the opening i f mart! 7 Ml wlj h a cbock-'r 3 , n o f the dissepiment, which does not split; and Unon th 18 01 ■ (eePer down sides of the superior part of the capsule.
«tendingij u I I pl\ nt isa lmostconfined to the northern countries, but hardly
without f l o ! l P t. ’ uea^ )Vah enberS susPects Lmmeus (who only states it to be found in one place, and
France it ;<, !!’ . S,0Ut.h ot, that department,) may have mistaken the leaves of Isoetes lacustris for it. In
Hudson’s Bav haviI?F °“1X,s®en near jLl®ge- In America, Michaux describes it as a native of
»1 Boston differing y exce ent B n F- Boott, Esq., has sent me very fine specimens from the neighbourhood
With eunf ln no respect from our plant. °
•alter monU, if S f 7 J,Vly and , The specimen here figured was gathered during the
The op ’ 7 °. Achray, by Miss Collett of Haveningham, Suffolk,
ralized mFnoi' a * ^af named in honour o f Matthias de Lobel, or L’Obel, a native of Flanders, who was natu-
and Gartner S f • ^ecf™e *hf. au*h®r of several learned botanical works. It is the Rapuntium of Tournefort
«finer. The original Lobelia of Plumier is the Scavola of Linmeus.