asyatv.net asyatv.net pdf kitap indir toplist ekle guncel blog
Class:angiosperms
Order:Rosales
Family:Rosaceae
Genus:Potentilla
Herbar:list records    scans available    photo available    habitat photo available    
Description:Form of leaves, type of leaves (pinnate or palmate) and the no. of leafelets are features to differentziate the species groups.
Tax. Comments:For useful comments on the taxonomy of Potentilla spp. see Flora of Siberia, Vol. 14, 2007.
Comments:See also: http://www.manfred-vesper.de/datei.php?did=241
open map in a new windowtaxon distribution for Potentilla  acc. to Geobotanical Regions of Mongolia by Grubov (1955)
species: 62
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

perennial (i)Living for several to many years, as opposed to annual and biennial
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 Rosaceae: no parasite/saprophyte
Water or terrestrial plant: (i)Where do the plants grow?terrestrial (i)Plant grows on dry land
example: Orostachys spinosa

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 Rosaceae: with green leaves
Leaf arrangement: (i)Arrangement of leaves at the stem.alternate (i)One leaf per node; distiche: arranged in two vertical rows, equitant
example: Phragmites

basal rosette (i)Leaves positioned at the base of the stem; stem often without leaves, no visible internodes (but flowers often on erect stems, and these may have few leaves)
example: Limonium, Potentilla, Plantago; also used in Liliales with basaly crouwded leaves (Tofieldia, Zigadenus etc.)

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.trifoliate (i)Three-parted leaf (often called ternate)
example: Trifolium, Thermopsis

compound (i)Composed of several similar parts
pinnate (i)With leaflets on both sides of an axis, at least 2 pairs or more
example: Onobrychis

Leaf apex: (i)Appearance of the tip of leaf resp. leaflets in compound leaves.emarginate (i)With a notch at the apex
example: Potentilla bifurca

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?serrate / dentate / crenulate (i)Margin saw-like or rounded teethed
example: Betula, Lophanthus (crenulate)

Petiole: (i)Leaf divided into stalk (petiole) and blade.with (i)Leaves with petiole (stalk)
Stipule: (i)Leaflets at the base of the petiole, these are smaller and of different shape.pair (i)A pair of free stipulae
example: Lathyrus, Trifolium

Flower (i)reproductive portion of the plant, consisting of sepals, petals, stamens, and pistils
Flower appearance and pollination: (i)General appearance of the flower.attractive, animal-pollinated (i)attractive and coloured flowers, mostly large, attracting surely animals
example: Trollius, Rosa, Chamaerhodos
inherited by family Rosaceae: attractive, animal-pollinated
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.double, different (i)Two types of perianth leaves, differently coloured (sepals: outer periant leaves, usually greenish, and petals: inner perianth leaves, usually coloured)
example: Parnassia

Diameter of flower: (i)Diameter of flower or flower head. from 10 mm to 20 mm (i)
example: Potentilla

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 Rosaceae: radiary, regular (actinomorphic)
Flower form: (i)common forms of flowers ? Veronicasimple (flat) - Do not confuse with inflorescences as in some Asteraceae (i)Petals spread out, flower appearing flat
example: Mollugo, Trientalis, Pulsatilla, Saxifraga
inherited by family Rosaceae: simple (flat) - Do not confuse with inflorescences as in some Asteraceae
Sepal number: (i)Number of sepal leaves (outer perianth leaves, calyx leaves, mostly greenish). Attention, this character applies only for flowers separated in sepals and petals, thus excluding most monocots. Be aware of the bracts (involucral leaves) of Asteraceae flowerheads, do not qualify these as sepals! Be also aware in Rosaceae is often an epicalyx developed, in this case count all parts.10 (i)Calyx and epicalyx
Petal / Tepal number: (i)Number of petal leaves (inner perianth leaves, usually coloured).5 (i)
example: Potentilla

Petal / Tepal fusion: (i)To which degree are the petal leaves connected? Petals sympetalous.free (i)all petal leaves separate from each other
example: Anthriscus
inherited by family Rosaceae: free
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 Rosaceae: no spur
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).> 10 (i)
example: Nymphaea, Callianthemum, Rosa

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 Rosaceae: free
Carpel number: (i)Number of carpels (carpel: forming a simple pistil or part of a compound pistil, modified leaf).> 5
Carpel fusion: (i)To which degree are the carpels (modified leaf forming simple pistil or part of a compound pistil) fused.free (i)Carpels entirely free
example: Geum, Aconitum

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

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
Type of fruit: (i)Common fruit types (including pseudocarp).Indehiscent fruits
achene (i)A small, dry, indehiscent fruit with a single seed
example: Asteraceae, Apiaceae (schizocarp), Dipsacaceae, Rosaceae, Ranunculaceae

nut or nutlet (i)Dry fruit with a single, hard stone inside (and usually a large often edible embryo)
Opening of fruit: (i)Mode of dehiscence at maturity to release seeds.not opening / indehiscent (i)Fruits remain closed at maturity and disperse with seeds inside
example: Corylus (nut), Vaccinium (berry)

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 Rosales: allorhizous
Runners: (i)Plant must be excavated; shoots, subterranean shoots connected by runners.stolons (i)Plants creep with above-ground shoots (stolons) which can root and establish new plants
example: Potentilla arenaria, P. anserina