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Group content
Compsostrobus neoreticus
morphospecies
Compsostrobus brevirostratus
morphospecies
Compsostrobus
morphogenus
Type species: Compsostrobus neoreticus Delevoryaz & Hope, 1973
Cardiocarpon
Fruits comprimés, lenticulaires, cordiformes ou réniformes, terminés par une pointe peu aiguë.
Végétaux
Samaropsis
morphogenus
Pteridospermae, Cycadofilices, Cordaitales, Cycadophyta
Cardiocarpon
morphogenus
Cornucarpus acutus (Lind. & Hutt.)
Seed triangular, about 6-10 mm. long, with a broad apex, and two wellmarked horns at the angles of the apex. A median ridge extending from the apex to base is prominent on most specimens. Testa smooth.
The Fossil Flora of Great Britain; or, Figures and Descriptions of the Vegetable Remains found in a Fossil State in this Country
Cardiocarpon acutum
The species now represented, occurs, occasionally in the shale, and always, or, at least, most commonly, in groupes; as is the case in the present instance. This circumstance makes it probable that they were clustered together when they were growing on the plant and that they were either deposited where they grew or that they had been drifted but a short distance. Each grain is lenticular always acute at one end and sometimes so at the other, but more generally obtuse. The acute end (d) appears to have been the apex and the obtuse end the base.
Cornucarpus acutus
morphospecies
type: Cardiocarpus acutus in: Lindley and Hutton, 1833, vol. i, p. 209, Pl. LXXVI.
Callistophyton
genus
Buriadia
genus
Cornucarpus gen. nova.
Seed small, not winged, triangular in shape, the apex of the triangle being directed downwards and ending in a short stalk, one side of the triangle forming the broad apex of the seed. Two well-marked horns project from the angles of the apex. A median ridge may occur.
A revision of the seed impressions of the British coal measures
Cornucarpus
morphogenus
Type species: Cornucarpus acutus (Lindley & Hutton, 1833)
Batenburgia sakmarica
morphospecies
Batenburgia
morphogenus
type species: Batenburgia sakmarica Hilton & Geng, 1998
Barthelia furcata
species
Holotype: OUPH specimen M-1614
Paratypes: OUPH specimens M-1421, M-1073, M-485; DPNHMBRCKU specimens ESU5981, ESU5928, ESU5931, ESU6007, ESU6025, and ESU6032.
Barthelia
genus
type species: Barthelia furcata Rothwell & Mapes, 2001
Aethophyllum stipulare
species
Holotype: Brongniart, 1828, pl. 18, fig. 1.
Aethophyllum
genus
type species: Aethophyllum stipulare Brongniart, 1828
Prosyllabus Tracheophytorum. Tentamen systematis plantarum vascularium (Tracheophyta)
Aethophyllum stipulare
species
Buriadiaceae sensu Pant 1977
Coricladus quiteriensis gen. et sp. nov., a new conifer in Southern-Brazil Gondwana (Lower Permian, Paraná Basin)
Batenburgia sakmarica Hilton et Geng, sp. nov.
Cone at least 24 mm long and 31 mm wide (measured from bract tips) with primary axis at least 3.5 mm wide proximally and tapering gradually distally. Bract/ovuliferous dwarf-shoot complexes arising helica lly from the primary axis at angles of 45-60°. Bracts long with proximal portion broad and curved in cross section with two small triangular shaped lateral extensions pointing upwards and outwards, slightly longer than wide. Distal portion of bract lanceolate. Proximal bracts longer than those situated distally.
Batenburgia Hilton et Geng, gen. nov.
Compound ovulate cone consisting of a slender primary axis with helically arranged bract /ovuliferous dwarf-shoot complexes. Basal portion
of bracts broad with lateral extensions curving upwards and outwards. Bracts distally lanceolate with axillary ovuliferous dwarf-shoot. Dwarf-shoot with helically arranged sterile scales and at least one ovule.
Æthophyllum
Caulis simplex? foliis alternis linearibus, enervibus, sessilibus, non vaginantibus, foliolis duobus minoribus (stipulis), linearibus, quadruplò brevioribus, basi stipatis. Inflorescentia spicata; spica ovata, floribus numerosis, tubo (vel ovaria infero) subcylindrico, perianthio bi-labiato? laciniis subulatis.
Æthophyllum stipulare
La présence de deux sortes de stipules à la base des feuilles de cette plante, me semble la distinguer de toutes les Monocotylédones connues, et cependant la forme de ses feuilles, la disposition et la structure de ses fleurs, paraissent bien la placer dans cette classe; la forme des fleurs et leur mode d'inflorescence rappellent cells des Orchidées, mais leurs caractères sont trop vagues pour qu'on puisse établir une comparaison rigoureuse entre ces plantes et notre espèce fossile.
Sultz-les-Bains
Lebachia n. gen.
- coming soon -
Lebachia lockardii sp. nov.
Ovulate cones, averaging 5·0 cm long x }·5 cm wide, borne as single terminal units on vegetative axes with helically arranged simple or bifid leaves. Cones comprised of primary axis with helically arranged bifid bracts and axillary fertile shoots. Fertile shoots bearing twenty-five to thirty sterile scales and one to two fertile scales (rarely three to five) positioned adjacent to primary axis. One terminal inverted ovule per fertile scale. Ovules bilaterally symmetrical and winged, with rounded or cordate base and attenuated micropyle. Nucellus free from integument distal to chalaza.
Emporia lockardii (Mapes & G. W. Rothwell) Mapes & G. W. Rothwell, comb. nov.
Features of species those of genus. Penultimate leaves 8–10 mm long, 1–2 mm wide; ultimate leaves triangular to linear, slightly concave to S-shaped in side view, 2.5–5.0 mm long, 0.5–1.2 mm wide. Epidermal cells elongated to polygonal, often papillate; marginal trichomes present. Stomatal complexes ca. 58x46 µm with 5–9 unipapillate subsidiary cells; guard cells sunken. Wood rays 1–8 cells high. Ovulate cones cylindrical-ellipsoidal, ca. 5 cm long, 1.5 cm wide, with forked bracts and axillary ovuliferous dwarf shoots free to the base.
Emporia Mapes & G. W. Rothwell, gen. nov.
Features of genus those of family. Endarch stele with uni-biseriate bordered pits on secondary tracheids, and rays 1–2 cells wide, resin rodlets in ground tissues. Leaves amphistomatic; adaxial surface with two long stomatal bands each 4–8 stomatal complexes wide with some shared subsidiary cells, diminishing to single rows or scattered stomata near tip of small leaves; abaxial surface with two shorter basal bands or scattered basal stomata. Stomata monocyclic with unipapillate subsidiary cells.
Emporiaceae Mapes & G. W. Rothwell, fam. nov.
Small eustelic coniferous trees with orthotropic stem, plagiotropic branches, and dense wood. Leaves helically arranged, simple on ultimate branches, forked on more proximal branches. Fertile organs consisting of simple pollen cones and compound ovulate cones. Pollen cone axis bearing helically arranged amphistomatic sporophylls with adaxial pollen sacs bearing eusaccate prepollen.
Validation of the names Emporiaceae, Emporia, and Emporia lockardii
Lycopodiolithes filiciformis
Man glaubt beym ersten Anblick ein südliches Farrenkraut vor sich zu haben, bey näherer Vergleichung mehrerer Exemplare zeigen sich aber nicht nur am Hauptstamm befindliche, zum Theil schuppenartig aufliegende Blätter, sondern auch ausser denen zu beyden Seiten des hauptstamms vorhandenen Zweigen, noch andere, welche neben den letzten nach verschiedenen Richtungen auszulaufen scheinen, und es wird daher sehr wahrscheinlich, dass dieser Abdruck gleichfalls einem baumartigen Lycopodium angehört.
Ernestiodendron Florin 1934 emend.
The present author maintains the diagnosis given by Florin (1939c, p.176), except the phrases describing the organization of
the ovuliferous cone and the prepollen; the latter will be described and discussed in a separate paper.
Genus Walchia Sternberg 1825 emend.
Ovuliferous cone compound, cylindric; cone axis bearing spirally arranged bracts with forked apices; ovuliferous dwarf-shoots freely arising in bractils, not reaching apices of bracts, (radially to) bilaterally symmetrical, slightly flattened, provided with a number of sterile scales and a single fertile scale, emerging on the adaxial side. Shape of sterile scales ranging from narrow-subtriangular to lanceolate.
Lebachia piniformis (SCHLOTH. pars) n. comb.
[p. 25:]
Merkwürdige Versteinerungen aus der Petrefactensammlung des verstorbenes wirklichen Geh. Raths Freiherrn v. Schlotheim.
Lycopodiolithes piniformis
Da die Ahbildung T. XXIII. fig. 1. a. b. eine treue Darstellung dieses Lycopodiolithen liefert, so macht sich eine ausführliche Beschreibung überflüssig. Er zeigt zuweilen eine entfernte Ähnlichkeit mit jungen Trieben von Schwarzholz, und hat daher seinen Namen erhalten. Fig. a. scheint ein Hauptast oder Stamm, und fig. b. vielleicht die Endspitze eines noch sehr jungen Exemplars zu seyn. Ob alle auf T. XXIII. fig. 1. 2. und T. XXV. f. 2. abgebildeten Zweige und Seitenäste zu dieser Art, oder zum Theil zu Lycopod.
Walchia. Sternb.
Char. essent. Caudex arboreus vel fructicosus, cortice armato aut inermi, ramis oppositus seu alternis, foliis 3-4-fariis. — Genus dubium, inter Lycopodia et Filices medium, facie quoque coniferarum.
Walchia piniformis
W. cortice aculeis subulatis armato, ramis diversae magnitudinis, forma tamen speciei praecedenti similibus.
Buriadia heterophylla Seward and Sahni emend. Serbet et al
compressions of shoots of two kinds bearing helically arranged simple to multifid leaves; shoots without ovules with densely packed acute-to-round-tipped bifid leaves occasionally appearing in whorls. Leaves with abaxial elongate epidermal cells and adaxial papillae. Leaf margin with small inconspicuous trichomes. Ovule bearing shoots with simple, bifid, and multifid leaves. Simple rounded leaves subtending orthotropous ovules with 180° rotational symmetry. Ovule with prominent apical integumentary extensions, longitudinally oriented striations, and a prominent basal disk.
Buriadia Seward and Sahni
woody vegetative shoots with irregular branching, bearing helically arranged polymorphic, simple, bifid and multifid leaves. Leavesclosely arranged on ultimate and penultimate branches, more distantly spaced on anti penultimate branches and absent from largest stems. Stem surface on apparently decorticated stems rugose with thick cuticle and round to tangentially oriented oval branch scars and longitudinally disposed subtle wavy ridges. Corticated stems with persistent bifid leaves.