The Botany of Iceland - 01.12.1942, Blaðsíða 89
THE TARAXACUM-FLORA OF ICELAND
315
Achenium laete brunneum—brunneum, 2.7—2.9 mm longum, c. 1.1 mm latum,
superne spinulis sat crebris, acutis, suberectis praeditum, ceterum tuberculato-spinu-
losum—laeve, in pyramidem 0.6—0.7 mm longam, conico-cylindricam sat abrupte
abiens. Rostrum c. 9 mm longum.
T. nematosquameum has long, narrow, patent, bright outer bracts and obovate-
lanceolate, much lobed inner leaves with a short, broadly hastate terminal lobe. The
species seems to be closely related to T. dilutisquameum ; but the latter has strongly
purple-spotted leaves.
Habitat: Home-fields, ditches.
Localities: Siglufjörður, 30.VII.1937, fr., phot. N.
Geogr. Distr. : Only found in Iceland.
85. Taraxacum parile M.P.Chr. n. sp.
Spec. orig.: Iceland, Akranes, 12.VII.1937, leg. M. P. Christiansen. Plate VII,
fig. 85. Plate XXXVI, fig. 192.
Planta sat robusta, 20—40 cm alta. Folia obscure viridia, araneosa, lanceolata,
sat profunde lobata, petiolis angustis, lucide purpureis, nervo mediano purpureo—
brunnescenti, lobis 4—6 utrinque, sat distantibus, latissimis, deltoideis, longis, patenti-
bus—leviter reflexis, apice saepe torto, acuto, antice o—pauco-denticulatis, lobo
terminali aut triangulari-hastato, supra lobulos basales sat contracto et in apicem
brevem, lingulatum, obtusum—mucronatum protracto, margine parce undulato, aut
ovato-sagittato vel hastato, obtuso vel acutiusculo.
Scapi purpureo-brunnescentes, valde araneosi.
Squamae exteriores laxe patulae—arcuatae, 4.5—2.0 X 13—14 mm, subtus
olivaceo-virides, apice purpureo, supra glaucescentes—leviter purpurascentes, in-
teriores latae, saepe valde adnatae.
Calathium dilute luteum—luteum, 50—60 mm latum, valde convexum, sub-
densum. Ligulae leviter canaliculatae, marginales planae, c. 2.5 X 21 mm, subtus
stria laete—obscure sed lucide purpurea notatae.
Antherae parce—valde polliniferae.
Stigmata livescentia—virescentia.
Achenium obscure cano-brunneum (154), c. 4 mm longum, 1.2—1.3 mm latum,
superne crebre, late et breviter erecto-spinulosum, ceterum spinuloso-tuberculatum,
in pyramidem 0.8—1.2 mm longam, cylindricam, saepe inferne spinulosam abiens.
Rostrum c. 11.5 mm longum.
T. parile has dark-green, regularly lobed leaves, purple-coloured petioles, large,
bright, strongly convex heads, long, somewhat recurved outer bracts, and the fruit
coarsely spinose, almost throughout. The purple spots are missing, nevertheless the
species seems to be rather closely related to the purple-spotted species of the Naevosa-
group, and therefore it is included in this group.
Habitat: Home-fields.
Localities: Hafnarfjörður, 8.VII.1935, l.VII.1937. S.W.—Akranes, 12.VII.1937,
plentiful, fr., phot. W.
Geogr. Distr.: Only found in Iceland.
86. Taraxacum selenophoreum M.P.Chr. n. sp.
Spec. orig.: Iceland, Egilsstaðir, 18.VII.1935, leg. M. P. Christiansen. Plate VII,
fig. 86. Plate XXXVII, fig. 195.
Planta robusta, 20—30 cm alta. Folia obscure canescenti- vel lutescenti-viridia,
valde araneosa, sat crispa, lanceolata—lingulato—lanceolata, profunde lobata, petiolis
sat latis, pallidis—rubro-brunnescentibus, nervo mediano + brunnescenti, lobis 3—7