BARTSIA VISCOSA. YELLOW VISCID BARTSIA.
BARTSIA viscosa; foliis subalternis lanceolatis profunde serratis, floribus solitariis axillaribus distan-
tibus, labio inferiore majore patente bituberculato.
BARTSIA viscosa. Linn. Sp. PI. p. 83<). Huds. Angl.p. 9.67. With. B o t.A r r .ed . 4. ml. 3. p. 531.
L ig h tf Scot. p. 321. p. 14. Willd. Sp. PL ml. 3. p. 186. Smith FI. Brit. p. 648. Engl.
Bat. t. 1045. Decand. Fl. Fr. ed. 3. ml. 3. p. 476. FI. Gall. Syn. p. 2 12 . Pers. Syn.
P L m l. 2.p . 150. Ait. Hort. K m . ed. 2. ml. 4. p, 1 . Hook. FI. Scot. P . I. p. 186.
EUPHRASIA major lutea latifolia palustris. Great yellow Marsh Eyebright. Raii Syn. p. 285.
Class a n d Or d e r . DIDYNAMIÀ ANGIOSPERMIA.
[N a tu r a l Or d e r . SCROPHULARINÆ, Brown, Hook. RHINANTHACEÆ, Decand. ANTIR-
RHINEÆ, ejusd. Fl. Fr. PEDICULARES, Juss.]
G e n . Ch a r . Cal. quadrilobus, subcoloratus. Cor. ringens, fauce clausa; labium superius concavum, longius;
inferius sequaliter trifidum, reflexum. Caps, ovata, compressa, bilocularis. Semina plurima, angulata. Sm.
G e n . Ch a r . Cal. four-lobed, somewhat coloured. Cor. ringent, closed at the orifice; upper lip concave, the
longest; lower one equally trifid, reflexed. Caps, ovate, compressed, two-celled. Seeds many, angled. Sm.
R a d ix parva, fibrosa, annua.
Caulis plerumque\spithamæus, simplex, nunc pedalis,
ramosus, erectus, teres, viridis, glanduloso-pu-
bescens, foliosus.
Folia subalterna, raro exacte opposita, sessilia ; infer
io r remota; superiora arete disposita, lanceo-
lata, læte viridia, subtus pallidiora, pubescentia,
viscosa, nervosa, margine profunde serrata.
F lores in axillis foliorum, solitarii, flavi.
Ca l y x brevissime pedicellatus, tubulosus, viridis, vis-
coso- atque glanduloso-pilosus, octo-striatus, ore
quadrifido, segmentis lineari-lanceolatis.
Corolla tub’ulosa, pubescens, bi-labiata ; labio super
io r (seu galea) fornicato, integro ; inferiore
majore, patente, trilobo, bi-tuberculato, intus
glabro.
St am in a quatuor, didynama ; Filamenta flava ; An-
theræ flavæ, bilobæ, hirsutæ, lobis inferne acu-
minatis.
P istil lum ovatum, gibbosum, basi glandula cinctum,
pilosum ; Stylus filiformis, inclusus ; Stigma capitatum,
pubescens.
P e r ic a r p ium ; Capsula tubo calycis paulo longior,
ovata, pubescens, bi-locularis, bi-valvis, apice so-
lummodo dehiscens ; Receptaculum centrale,
dissepimento utrinque adnatum.
Sem in a numerosa, oblongo-elliptica, fusca, longitudi-
naliter punctato-striata.
Root small, fibrous, annual.
Stem generally a span high, simple, sometimes a foot
Fig. 1 . Calyx. Fig. 2. Corolla. Fig. 3. Pistil.
Fig. 5. Another burst. Fig. 6. Front view of a corolla,
sule. Fig. 9 .9 . Seeds :—all more or less magnified.
*1 high and branched, erect, rounded, green, glan-
djuloso-pubescent, leafy.
L eaves subalternate, rarely exactly opposite, sessile;
the lower ones remote; the upper.ones closely
arranged, lanceolate, deep, green, paler beneath,
pubescent, viscid, nerved, the margin deeply serrated.
Flowers in the axils o f the leaves, solitary, yellow.
Caly x shortly pedicellate, tubular, green, viscid, and
glanduloso-hirsute, having eight strife, the mouth
quadrifid, the segments linear-lanceolate.
Corolla tubular, pubescent, two-lipped; the upper lip
(or helmet) fornicate, entire ; the lower one
larger, patent, three-lobed, bi-tuberculate, within
glabrous.
j St am e n s four, didynamous; Filaments yellow; Anthers
yellow, two-lobed, hairy, the lobes below,
acuminate.
P is t il ovate, gibbous, surrounded at the base with a
gland, hairy; Style filiform, included; Stigma
capitate, pubescent.
P e r ic a r p : Capsule longer than the tube of the calyx,
ovate, pubescent, two-celled,, two-valved, opening
at the extremity only; Receptacle central, with
the dissepiment adnate on each side.
Seed s numerous, oblongo-elliptical, brown, longitudinally
punctatu-striated.
Fig. 4. Stamen before the bursting of the Anthers.
Fig. 7. Section of an advanced germen. Fig. 8. Cap-
Already in the present work are a figure and description given of the rare Bartsia alpina ; and it is with much satisfaction
that I have now the opportunity of publishing the equally scarce species which appears on the accompanying
plate. Throughout Great Britain the only situations known at present to possess the Bartsia viscosa, are,
near Chester; in some marshes in Cornwall and Devonshire; two spots in Lancashire; and occasionally on the
shores of the Clyde and of one or two salt-water lakes which communicate with that noble river. These spots are
particularly described in The Botanist's Guide, and in Lightfoot’s Flora Scotica. To the habitats there given may
be added a pasture opposite the hill of Dumbuck at the western end of the range of Kilpatrick mountains, where
it was discovered by Mr. Maughan, and whence the specimens here figured were brought to me by my friend
Mr. M. Y. Starke, and near Greenock Battery, where it "was first found by the last-named gentleman.
Its flowering season is the latter end of the summer: the present plants were m great perfection, bearing both
flowers and seeds in the latter end of September. The whole plant has a faint but agreeable1 musky smell.
The Yellow Bartsia has considerably the same modeof growth with the Alpine Bartsia, and, like it, turns black
in drying. The flowers, however, differ not only in colour, but in their form, having a large patent, three-lobed
lower lip, with two evident tubercles in the centre. This latter circumstance is correctly delineated by Lightfoot,
and by Lightfoot only; and it is rather remarkable that neither that author nor any other has noticed this character
in description. The seeds, which are winged with angles in Bartsia alpina, are quite destitute of them here,
and the stalk, square in B . alpina, is rounded in B. viscosa. The specific name is derived from the viscidity
which affects the whole plant.-
167