LAPSANA PUSILLA. LEAST NIPPLE-WORT, OR
SWINE’S SUCCORY.
LAPSANA pusilla ; acaulis, scapo subtrifloro,. p'edunculis fistulosis clavato-incrassatis, foliis obovato-
oblongis denticulatis. Willd.
'LAP SANA pusilla. Wittd. Sp. PI, m l,3 . p. }W S . Aitm: H ort. Kew. ei. i . m l. 4, p. i6 7 .
LAPSANA minima. All. Ped. n. 751.
LAMPSANA minima. Lam. Diet: ml. 3. p, 414. Decand. FI. Fr. ed. 3. ml. 4. p. 3. FI. Gall.
Syn. p. 256. &
ARNOSERIS pusilla. Gartn. de Fruct. ml. 2. p. 355. t. 157. J . S'.
HYOSERIS minima. Linn. Sp. P I. p. 1138. FI. Suec. n. 707. Oed., FI. Dan. t. 201. Hujs.
Angl. p. 346. With. Bot. A rr. ed. 4. ml. 8. p. 674* L ig h tf. Scot. p. 442. Smith
FI. B r it. p. 839. Engl. Bot. t. 95. Pars. Syn. P I. ml. 2. p. 369. R oth Germ,
ml. 2. p . 278.
LAPSANA foliis ovatis dentatis, caulibus nudis, sub flore tumentibus. Hall. Helv. n. 4.
H IERA C IUM minimum Clusii, Hyoseris Tabernasmontani e t Gerardi. Raii Syn. p. 173.
Class and Order. SY N G EN E S IA POLYGAMIA jEQUALIS.
[N atural Order. COMPOSITiE, Linn. Decand. Dlv. I. CICIiORACEiE. CICHORACEA2, ./i/ss.],
Gen . Char. Receptaculum nudum. Pappus nuTlus. Calyx calyculatusfoliolis interioribus sequalibus, call
aliculatis.
Radix parva, fibroso-fusiformis, annua.
Folia omnia radicalia, in orbein digesta, expansa, ob-
ovato-oblonga, basi attenuata, dentata, superficie
margineque scabra. .
SCAPI plures ex una rad,ice, spithamæi et ultra, nudi,
simplices vel superné dichotomi, graciles, rubi-
. cundi.
PEDUNCULI superne clavato-incrassati, fistulosi, hie illic
squama exigua subulata solitaria, uniflori.
Calyx polyphyllus, post anthesin ventricosus; foliola
lanceolato-acuminata, margine subsetosa, îæte-
viridia, dorso inferne insigniter carinato, carina
pallida, basi foliolis pàucis parvis subulatis mu-
FLOSCULI parvi, lutei, ligulati, hermaphroditi, apice trun-
cati, quinquedentati, basi subvillosi, albi.
ReceptacùLUM punctatum, nudum.
PERICARPIUM oblongum, basi attenuatum, fuscum, an-
gulatum, sulcatum, margine elevato, pappo oro-
nino destituto.
. Semen oblongum, purpureo-fuscum.
Integumentum coriaceo-membranaceum.
Embryo semini conformis, albicans. Cotyledones plano-
convexoe. Radicula inféra.
Root small, fusiform and fibrous, annual.
Leaves all radical, collected into a circle, expanded,
Fig. 1. Floscule. Fig. 2. Calyx after flowering. Fig.
the receptacle from which the capsules have fallen.
—All more or less magnified.
obovato-oblong, attenuate at the base, toothed,
with the surface, and margin rough.
Scapes many from the same root, a span or more high,
naked, simple or dichotomous upwards, slender,
reddish.
Peduncles above thickened, club-shaped, hollow, here
and there having a small, subulate, solitary scale,
one-fiowered.
Calyx of many leaflets, ventricose after flowering; leaflets
lapceolato-acuminate, with the margin sub-
setose, deep green, the back remarkably keeled,
the keel pale, at the base furnished with a few
small subulate leaflets.
Floscules small, yellow, ligulate, hermaphrodite, truncate
at the apex, with five teeth, somewhat hairy
at the base and white.
Receptacle punctate, naked.
I Pericarp oblong, attenuate at the base, brown, angular,
sulcate, with the margin elevated and destitute
of any pappus.
Seed oblong, purplish brown.
Integument between coriaceous and membranaceous.
Embryo of the same shape as the seed, whitish. Cotyledons
plano-convex. Radicle inferior.
3. Calycine leaflet. Fig. 4. Calyx cut open to show
Fig. 5. A capsule. Fig. 6. A seed. Fig. 7. Embryo.
In fields where the soil is light and gravelly this plant is not very uncommon, flowering m June, July and August
Our specimens were gathered in similar situations about Dunwich, Suffolk.
° The scales of the calyx can hardly be called canaliculate: in other respects it perfectly accords with the genus
Lapsana. Hyoseris should have seeds crowned with a pappus, which we have never seen upon this plant, although
Sir J E. Smith says in EnglishBotany, “ seeds crowned with an elevated rim, more rarely with short simple down.
Gasrtner made of this plant the genus J rmscris, on account of the elevated margin of the seed, which he considered
a pappus, and because he overlooked the small calycine leaflets at the base of the larger ones.