The Botany of Iceland - 01.12.1942, Side 79
THE TARAXACUM-FLORA OF ICELAND
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ff. Leaves blackish-green. Lobes acuminate, denticulate. Outer bracts narrow,
linear-lanceolate.
87. T. triste M.P.Chr.
ee. Leaves plane, greyish-green, very hairy, lanceolate—oblanceolate, dense and
short lobed. Pyramid very long and + spinose.
88. T. scabrum M.P.Chr.
Eu-Naevosa.
Maculata.
72. Taraxacum pardinum M.P.Chr. n. sp.
Spec. orig.: Iceland, Bilðudalur, 11.VII.1935, leg. M. P. Christiansen. Plate VI,
fig. 72. Plate XXXV, fig. 191.
Planta mediocris, 20—30 cm alta. Folia laete viridia—lutescenti-viridia, sat
dense—pauce purpureo-maculata, leviter, nervo mediano dense, araneosa, lanceolata,
sat profunde lobata, petiolis sublatis, pallidis, nervo mediano pallido—paulo brun-
nescenti, lobis 2—4 utrinque (in planta culta 5—7) approximatis, deltoideis vel
a basi latis et in apicem angustum, porrigentem, sat reflexum vel incurvum, acutum
abeuntibus, antice sigmoideis vel concavis, integris—robuste 1—4-dentatis, lobo
terminali nunc parvo, triangulari-hastato, nunc magno, ovato-sagittato, sat aequilato,
obtuso—acutiusculo, saepe robuste uni-dentato.
Involucrum laete olivaceo-viride. Squamae exteriores adpressae—erecto-recurvatae,
3—2 X 10—11 mm, lanceolatae—lineares, subtus laete olivaceo-virides, haud vel
angustissime albido- vel roseo-marginatae, supra laetiores, + purpureae.
Calathium c. 50 mm latum, + laete luteum, planum, sat radians. Ligulae in
apicem sat canaliculatae, marginales 2.0—2.5 mm latae, subtus stria cano- vel sat
luteo-purpurea notatae.
Antherae brunnescentes, valde polliniferae.
Stigmata virescentia—atro-virescentia.
Achenium griseo-brunneum, leviter rubescens, c. 3.6 mm longum, 1.2—1.3 mm
latum, superne dense et sat robuste suberecto-spinulosum, ceterum tuberculatum—•
laeve, in pyramidem + cylindricam, 0.7—-1.0 mm longam, basi saepe spinulosam
abrupte abiens. Rostrum c. 9 mm longum.
T. pardinum has bright yellowish-green, (+ spotted, strongly lobed leaves
(cultivated plants up to 7 lateral lobes), pale petioles, the lobes deltoid or with a
broad base with a large tooth or small lobe and abrupt point. In T. galeipotens the
leaf is of a similar shape and colour, but here the petioles, especially those of the
inner leaves, are lucid purple-coloured.
Habitat: Home-fields.
Localities: Bílðudalur, 11.VII. 1935, fr., phot. N.W.
Geogr. Distr.: Only found in Iceland.
73. Taraxacum brevihastatum M.P.Chr. n. sp.
Spec. orig.: Iceland, Akureyri, 29.VII.1937, leg. M. P. Christiansen. Plate VI,
fig. 73. Plate XXXIII, fig. 184.
Planta sat magna, 20—35 cm alta. Folia dilute viridia—leviter lutescentia, pauce
dilute purpureo-maculata, dense araneosa, lingulato-lanceolata—obovato-lanceolata,
dense 4—5-loba, petiolis latis, pallidis, lobis basin versus latis, in apicem retroversum
—hamatum, interdum sigmoideum, angustum, acutissimum attenuatis, antice ir-