Class: | angiosperms |
Order: | Ericales |
Family: | Primulaceae |
Genus: | Glaux |
Herbar: | list records |
Description: | Small plant with prostrate stem. Corolla absent, calxy corollaceous, whit to pinkish. |
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| species: 1 |
Habit (i)general appearance of a plant | |
Growth form: (i)Herb, shrub, tree or climber. | herb (i)Herbaceous, erect plant, up to 2m high, mostly with a leafy shoot; if perennial, shoots die to the ground each season, shoots are not woody example: Artemisia pectinata inherited by family Primulaceae: herb
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Size of plant: (i)Attention: use flowering or fruiting specimens to assess plant height (many biennial plants possess only a basal rosette in the first year). | to 100 mm
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Parasite status: (i)Is the plant a half- or full parasite? | no parasite/saprophyte (i)Plant fully autonomous, leaves with chlorophyll example: Most plants, Ranunculus inherited by family Primulaceae: no parasite/saprophyte
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Water or terrestrial plant: (i)Where do the plants grow? | terrestrial (i)Plant grows on dry land example: Orostachys spinosa inherited by family Primulaceae: terrestrial
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Leaf (i)expanded, usually photosynthetic organ of a plant (including phylloclades) | |
Leaf development: (i)Structure and development of leaves. | with green leaves (i)Plant with green leaves inherited by family Primulaceae: with green leaves
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Leaf arrangement: (i)Arrangement of leaves at the stem. | opposite, opposite-decussate (i)Two leaves per node example: Lamiaceae, e.g. Phlomis
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Simple or divided leaves: (i)Are the leaves simple or completely divided in several parts? Blade of the leaf entire or (more or less) deeply dissected. Attention: There are various appearances of the leaf margin (from entire to toothed and lobed). Here, we ignore this and ask only for dissections that separate the leaf for more than one third of its length or width, whatever is smaller. Sometimes, it is difficult to tell apart compound leaves from a shoot system with simple leaves: look for stipulae and/or axillary buds at the ground of the leaves: if only some possess these structures, the others are most likely leaflets of a compound leaf. | simple (i)Non-divided leaf, but margin may be incised nearly to the ground
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Shape of blade: (i)Easy for simple leaves. In compound leaves use the general shape of leaflet. Always check the ground for largest leaves of a plant. To be worked out: how to handle pinnate leaves? | elliptic (including ovate and obovate) (i)Elliptic: broadest at the middle and narrower at the two equal ends; ovate: egg-shaped, attached at the broad end; obovate: attached at the narrower end example: Limosella aquatica lanceolate (i)Lance-shaped; much longer than wide, with the widest point in the middle or below
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Length of leaves: (i)How long is the leaf, be carefull in compound leaves, measure the complete leaf. | from 6 mm to 10 mm
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Leaf apex: (i)Appearance of the tip of leaf resp. leaflets in compound leaves. | obtuse (i)Sides coming together at the apex at an angle greater than 90 degrees example: Fallopia convolvulus
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Leaf margin: (i)Structure of leaf margin (or that of a leaflet in case of compound leaves). Attention: Here we ask for the leaf margin, defined as all those dissections that separate the leaf for less than one third of its length or width, whatever is smaller. To be worked out: how to handle margin of pinnate leaves? | entire (i)Plain margin, not toothed example: Iris
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Petiole: (i)Leaf divided into stalk (petiole) and blade. | without (i)Leaves without petiole (stalk), sessile example: Poaceae, Iris
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Stipule: (i)Leaflets at the base of the petiole, these are smaller and of different shape. | none (i)Without stipules example: Euphorbia, Ericaceae s.l. inherited by family Primulaceae: none
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Leaf colour upper side: (i)Shades of green on the leaf, upper side. | green (i)Clear green example: Tribulus terrestris
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Leaf colour lower side: (i)Shades of green on the leaf, lower side. | green (i)Clear green, in most species example: Angelica decurrens
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Leaf veination: (i)Arrangement of the main veins of a leaf. | pinnate (i)One main vein, several side veins, sometimes inconspicuous example: Cicerbita inherited by family Primulaceae: pinnate
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Flower (i)reproductive portion of the plant, consisting of sepals, petals, stamens, and pistils | |
Flower appearance and pollination: (i)General appearance of the flower. | not attractive, wind-pollinated or some water plants (i)Small, colourless or green flowers example: Betula, grasslike plants: Carex, Setaria, Juncus attractive, animal-pollinated (i)attractive and coloured flowers, mostly large, attracting surely animals example: Trollius, Rosa, Chamaerhodos inherited by family Primulaceae: attractive, animal-pollinated
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Flower colour: (i)Attention: assess colour of the most colourful parts of the flower, but not of the stamens; be aware of single plants with a mutation (mostly white) on flower colour. | white (i)Most plants of the population white example: Pleurospermum, Maianthemum pink (i)Between red and white example: Centaurium
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Perianth arrangement: (i)Attention: in some plants, flowers may be dimorphic in different ways (dioecious or gynodioecious). If flowers vary, record the characters of the most showy flowers. | simple, similar (i)Only one type of perianth leaves (tepals) example: Tulipa
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Diameter of flower: (i)Diameter of flower or flower head. | to 5 mm (i) example: Aruncus
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Flower symmetry: (i)Symmetry of the perianth leaves. Attention: to assess this character, look on sepals, petals and stamens, but neglect carpels and ovary. | radiary, regular (actinomorphic) (i)More than two axis of symmetry example: Saxifraga: 5; Iris: 3 inherited by family Primulaceae: radiary, regular (actinomorphic)
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Flower form: (i)common forms of flowers ? Veronica | tubular to funnel-shaped (i)Petals form a tube, are often partially united to a cylindrical corolla, often surrounded by a calyx campanulate (i)Petals united to a bell-shaped corolla
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Petal / Tepal number: (i)Number of petal leaves (inner perianth leaves, usually coloured). | 5 (i) example: Potentilla
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Petal / Tepal fusion: (i)To which degree are the petal leaves connected? Petals sympetalous. | fused (i)petal leaves united, only tips are free (gamopetalous, sympetalous) example: Linnaea, Adenophora, Stellera inherited by family Primulaceae: fused
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Spur: (i)A hollow, slender, sac-like appendage of the perianth leaves, storing nectar. | no spur (i)Flower without appendage example: Peganum inherited by family Primulaceae: no spur
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Stamen number: (i)Attention: We ask for the reproductive organs of the flower dispersing pollen. Count only fully fertile stamens, not staminodia (e.g. Parnassia). | 5 (i) example: Peucedanum
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Stamen fusion: (i)To which degree are the stamens fused? Attention: Whereas the pollen sacs itself are often free., their stalks (filaments) may be fused. Here, we count them as fused if they are together over at least one thirth of their length. | free (i)Stamens with separate bases example: Malus inherited by family Primulaceae: free
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Pistil number: (i)Number of pistils (female floral organs: style, if developed; stigma and carpels/ovary together build the pistil). | 1 (i)One carpel, but clearly one stigma example: Pyrola, Primula, Alyssum inherited by family Primulaceae: 1
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Carpel number: (i)Number of carpels (carpel: forming a simple pistil or part of a compound pistil, modified leaf). | 5 inherited by family Primulaceae: 5
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Carpel fusion: (i)To which degree are the carpels (modified leaf forming simple pistil or part of a compound pistil) fused. | fused (i)Carpels united into an ovary, only styles are free example: Malus, Berberis inherited by family Primulaceae: fused
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Style number: (i)Portion of the pistil connecting the stigma to the ovary. | 1 inherited by family Primulaceae: 1
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Ovary position: (i)For entirely or partly fused carpels, describe their position in relation to the insertion point of perianth leaves (best done by doing a longitudinal section of a flower). | superior (hypogynous) (i)Base of carpels attached above insertion point of perianth leaves, carpels free or fused example: Delphinium, Anemone inherited by family Primulaceae: superior (hypogynous)
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Sex: (i)Distribution of male and female organs among flowers, only most commonly cases. | bisexual, hermaphrodite (i)All or nearly all flowers of a plant with male and female parts example: Haplophyllum, Chenopodium inherited by family Primulaceae: bisexual, hermaphrodite
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Fruit (i)the seed bearing organ, with or without adnate parts; a ripened ovary and any other structures which are attached and ripen with it. Aggregate fruits are handled like simple fruits for determination. | |
Consistency: (i)Fleshy fruits or dry fruits, see dispersal adaptations for further classification. | dry (i)With a dry outer shell, no fleshy parts, but seed (embryo) could be edible inherited by family Primulaceae: dry
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Type of fruit: (i)Common fruit types (including pseudocarp). | Solitary fruits (i) inherited by family Primulaceae: Solitary fruits capsule (i)Dry dehiscent fruit, releasing seeds by slits or holes. example: Poppy, most Caryophyllaceae, Cerastium, a lot of Scrophulariaceae, Iris (oppened capsule looks like Delphinium), Zygophyllum - it is a very common fruit type inherited by family Primulaceae: capsule Dehiscent fruits (i)Fruits open along a longitudinale line (except silicula) inherited by family Primulaceae: Dehiscent fruits
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Opening of fruit: (i)Mode of dehiscence at maturity to release seeds. | opening / dehiscent (i)Dry? Fruits opening with different types inherited by family Primulaceae: opening / dehiscent
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Hairs | |
Has hairs?: | no hairs, glabrous
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Root / shoot below ground (i)plant part below ground (in most cases), including below ground shoots, without leaves | |
Root type: (i)Organisation of the roots. | allorhizous (i)Plant with a conspicuous tap root, one larger tap root with side roots example: Dicotyledonae inherited by order Ericales: allorhizous
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