DROSERA ROTUNDIFOLIA. ROUND-LEAVED SUN DEW.
DROSERA rotmdifolia; foliis orbiculatis radicalibus, scapo racemoso.
DROSERA rotundifolia l i m Sp PLp.AOi. Huds Angl.p. ,35. Light/. Scot. p . n s . With Bot A rr
i d . * .v o t ,t . p . 319. P L D a n .t. 1093. Hoffm. Germ. cd. S .ml. l. i>. i . 132 WilU \ p i
F ' r J l i Fp B r“ „P' Ü W m W 1 m ' Dtoand.r l . (rail. Syn. p. 384. Pers. Syn. PI. vol. 1. » ggfi Aitnn Tfnrt FI. A . „e.di.n 1 vo i t..f . “n 's* °
WiA/. Ä Lapp. p. 74. ParsA P t rfui, &ƒ/. so/. 1 . p. s j o. Ä r f . p/. Scof. P . jT - 98 * 89’
RORELLA foliis petiolatis subrotundis, caule nudo paucifloro. Hall. Helv. n. 834.
ROS solis folio rotundo. Rosa-solis, or Sundew with round leaves. Rail Syn. p. 356.
ß. RORELLA rotundifolia perennis. Perennial round-leaved Sun-dew. Raii Syn. p. 356.
Class a nd O rd er. PENTANDRIA HEXAGYNIA.
[Natural Order. DROSERACEÆ, Decand., Hook. CAPPARIDIBUS AFFINIS, Joss., Decand. in FI P r ]
Char. OllD. N at. Cal. quinque-fidus persistens. P e t quinque, tequalia,' subungniculata, marcescentia. Stum definil.
AM e roe S ty lta p eæM o o e im o ute. Ovanam umloculare, polyspermum. Capsula unilocularis aami-tri-quiame vaïvU
— Semina minuta, anllata. Embryo minuta ad basin albuminis caraosi immersa Radirutn hilo ™ ■? ’
Herbte. Folia plemmque radicalia, glanduloso-pilosa. s immersa. ttadtcala hilo opposita.—
s Gen. Char. Cat. quinque-fidus. Pe t. quinque. Styli sex. Caps, unilocularis, tri- vel quinque-valvis, polysperma.
| Gen. Char. Cal. five-cleft. Pet. five. Style, six. Caps, one-celled, from three- to five-valved, mMy-seeded.
Radix perennis, parva, fibrosa, fusca.
Folia omnia radicalia, in orbetn ex pansa, petiolata, orbicu-
lata, vel orbiculato-reniformia, flavo-viridia (juniora
ruberrima), dorso paululum convexa, supra parum con-
cava, margine facieque superne pilis rufis longiusculis
apice glanduloso-viscosis tecta : Petiolus folio duplo
triplove longior, cotnpressus, pubescens, versus basin
fasciculis tribus purpureorum pilorum instructus.
i'ScAPi plerumque tres vel quatuor ex eadem radice, palmares,
erecti, purpurei, glabri.
Racemus terminals, pauciflorus, primum cernuus, dein erec-
tus.
Flores albi, pedicellati, pedicello glabro ebracteato.
Calyx profunde quinquefidus, lacinjis oblongis apice denti-
culatis.
[Corolla pentapetala: Petalaoblongo-obovata,basiattenuata.
Stamina quinque, longitudine germinis: Filamenta com-
pressa, sursum paululum dilatata.
IPistillum: Germen obovatum, viride: Styli sex, sursum
| curyati, breves: Stigmata biloba, giandulosa.
ICapsula oblonga, parva, calycem persistentem excedens,
atque corolla marcescente tecta, nigro-fusca, semi-
| trivalvis, unilocularis.
IReceptaculum e medio valvarum.
■Semina numerosa, minutissima, elliptica, fusca, lmvia, basi
apiceque mucronata, arillo fusco subopaco tecta.
(Albumen carnosum.
(Embryo ad basin albuminis.
>• Front view of a leaf. Fig. 2. Back view of the same
| dular hairs of the leaves. Fig. 6. Calyx. Fig. 7. Petal. Fh
I. ®f the Germen. Fig. 1 1 . Capsule inclosed within the
■ which the calyx and corolla are removed. Fig. 13. One o
I enve*°ped in the arillus. Fig. 15. Seed from which the
I embryo.
Root perennial, small, fibrous, brown.
L eaves all springing immediately from the root, and expanding
orbicularly, placed on footstalks, of an orbicular
or between a kidney and orbicular, shape, yellowish’
green, (the younger ones very,red,)slightly convex on the
back, and a little concave beneath, covered on the
margin and upper surface with longish red hairs, which
are Upped with a viscous gland : Petiole twice or
thrice as long as the leaf, compressed, pubescent, furnished.
at the base with three fascicles of purplish
Scapes generally three or four from the same root, three or
four inches long, erect, red, glabrous.
RACEME^terrainal, few-flowered, at first nodding, afterwards
Flowers white pedicellate, the pedicel glabrous and de-
stitute of bracteas.
Calyx deeply quinquefid, its segments oblong, toothed at
the points.
Corolla of five petals: Petals between oblong and obovate
attenuated at their base. ’
Stamens five, of the same length as the germen: Filaments
compressed, a little dilated upwards.
PISTIL: Germen obovate, green : Styles six, curved upwards,
short: Stigmas two-lobed, glandular.
Capsule oblong, small, longer than the persistent calyx and
surrounded with the decaying corolla, blackish-brown,
valved half way down, one-celled.
Receptacle arising from the middle of the valves.
Seeds numerous, very minute, elliptical, brown, smooth, mu-
cronate at the base and point, covered with a brown
semitransparent arillus.
Albumen fleshy.
I Embryo placed at the base of the albumen.
2; 4 - Young leaves not yet expanded. Fig. 5. Glan-
{.S . Pistil and stamens. Fig. 9. Single stamen. Fig. iO Sec-
calyx and marcescent corolla. Fig. 12 . Capsule burst, from
t the valves of the capsule, with the seeds. Fi? 14 Seeds
arillus is removed. Fig. 16. Section of a seed to show the
— M i I f f f e “ ld H “■? '»habitants nut only of Europe, but of Asia, Africa and America, have the mar-
[hid, and which “ rlaceJ c othed with red pedunculated glands, from which exudes a pellucid glutinous
l(o«ueriv'i earrJ gLo jf athejr * .aannd. iRt0ot h[ > tin ht is FBlo raB Germ amea, says, t,haantd t “heT Ge”r1m* arne tsap>»e»c itehse omf bthye i tsse mviissc ifdwitliyi.r^h nSro«m teh »botauis“
ln.?0me \ T S; tl,e »»d of the leaf was so bent inwards as to touch the base*.” “
| t t there vL a dad i‘„°s“ t e a l F 'vho.otorvingsome of the leaves folded up of the Drosera angliea, ascertained
p;"'tide the leaf by touching it w i i a f a 0“? !!'o ff c‘f S dopl,ca,Uon of H t0 £9$ °"'lng t0 the insect, he was prompted f c y Cmng “ "'th » P". The effect was, as he expected, a sudden contraction o f the foliage upon the
(" I curiouslT’rouId in^khTdoMW™ f1"”8 19! , Tbo JOUng leaves> intleed, before expansion are beautifully
|°™ upon the fatstalk ?he L„“rVd HM "h“,'0 lamlna or ,blade o f tlre leaf (“ represented at Jig. 3) is beat
g t T COmP‘etely 'm'°IUte “ 10 a" to 'y & hairs and
pot aware*1that he°hT? «T'*1 f>|*'obably, constitute an order by itself: Decandolle has formed of it the Droseracece • but T «m
f i t . family of Droscrl*! •publ,sbedl h!s lde?s of |( 6 characters of the Order. Salisbury has, I believe, invented the
e Genus ^ which’bo,,ever jm ““°rdwiti‘ ^ t
M i1 commo" of t o three British ones, and is equally found in North America, inhabiting wet
I 4 MnpnpiiIo „BfV B— 8S ® «f»a«v’uou“ritatbul£ic! lu mt oe ggrroowwmth oorf SSpphh.a.fgs,n.ua,.. *I am not aware that any species but the p r S t H
f D‘ r iu?nrliffn/i;„0 ':»n aira’ which are seen on the lower part of the leafstalks.
pould U B S ls beli®ved by many to be the cau
I flowers’in ,?revent tbose an>mals from eating it.
[ m the months of July and August.
that any species but the present has
to be the cause of the rot in sheep; but its acrid and caustic nature is sufficient, one