The rose family (Rosaceae)




Дата канвертавання18.04.2016
Памер22.17 Kb.
Aristotle University of Thessaloniki April 2000

School of Biology Kerstin Nordstrom


The rose - family

(Rosaceae)

The Rose family - rosaceae – comprises about 3000 species of plants mainly spread in temperate countries. Some of them are very important as edible fruit trees (Almonds, cherries, apples, etc.) or as cultivated flowers (roses, for example)



http://www.geocities.com/CapeCanaveral/Hall/1244/familiarosaceasangles.htm)

Taxonomy

Division: Magnoliophyta

Class: Magnoliae

Subclass: Rosidae

Order: Rosales

Family: Rosaceae




Description



Habit: Rosacidae consists of trees, or shrubs, or herbs, non-laticiferous and without coloured juice. The herbs are usually perennial, with a basal aggregation of leaves, or with neither basal nor terminal aggregations of leaves. They can be self-supporting, or climbing. They are helophytic, mesophytic, or xerophytic.

(http://biodiversity.uno.edu/delta/angio/index.htm)


Leaves :(1) They are usually deciduous or evergreen. Generally alternate, composite or simple. Leaves are stipulate (usually), or exstipulate (in Spiraea etc.)
Inflorescence: Flowers can be solitary, or aggregated in ‘inflorescences’; in cymes, in panicles, in racemes, in corymbs, in umbels, and in fascicles.
Stems: (2) The stems are very changing, erect or climbing. Ligneous or herbaceous.
Flowers: (3) Flowers are small to large, often fragrant, usually regular, cyclic, or partially acyclic. Calyx - 5 free sepals, corolla - 5 free petals, stamens many, ovary - inferior or semi inferior, carpel’s - many.

Fruit: The fruit can be fleshy, or non-fleshy, an aggregate (when carpels free), or not an aggregate.

Drupes (4) Pomes (5) Achenes (6)









(http://www.geocities.com/CapeCanaveral/Hall/1244/familiarosaceasangles.htm)

Geography

Rosacidae is cosmopolitan. You can find it in the Frigid Zone to tropical Zone.

(http://biodiversity.uno.edu/delta/angio/www/rosaceae.htm)

Representative genera and species





Genera



Species





AGRIMONIA, ALCHEMILLA, AMELANCHIER, APHANES, ARUNCUS, COTONEASTER, CRAETAGUS, CYDONIA, DRYAS, ERIOBOTRYA, MALUS, MESPILUS

FILIPENDULA

FRAGARIA


GEUM

POTENTILLA, PRUNUS PYRACANTHA PYRUS



ROSA

RUBUS SANGUISORBA SIBBALDIA SORBUS SPIRAEA




Agrimonia eupatoria
Alchemilla alpina
Cydonia oblonga
Filipendula ulmaria
Filipendula vulgaris
Fragaria vesca

Malus domestica


Potentilla reptans
Prunus avium
Prunus dulcis

Prunus malaheb
Prunus spinosa

Pyrus communis


Rosa canina
Rubus ulmifolius
Sanguisorba minor
Sorbus domestica
Spiraea salicifolia


(http://www.geocities.com/CapeCanaveral/Hall/1244/familiarosaceasaagnles.htm)
Uses (economically important species)

Edible fruits from Malus spp. (apples), Prunus spp. (apricot, cherry, nectarine, peach, plums, prune, sloe), Cydonia (quince), Pyrus (pear), Eriobotrya (loquat), Rubus (blackberry, boysenberry, loganberry, rasberry), Fragaria (strawberry), Mespilus (medlar); nuts (Prunus — almond); many ornamental trees and shrubs or hedge-plants, e.g. Spiraea, Photinia, Kerria, Cotoneaster, Pyracantha, Crataegus, Sorbus, Rhodotypos, Prunus, Rosa, Potentilla; and some widely naturalized pests (e.g. from Acaena, Crataegus, Cotoneaster, Pyracantha). (http://biodiversity.uno.edu/delta/angio/www/rosaceae.htm)


Malus domestica


Apple is a quite big tree with big spread branches. The leaves are about 5 – 6 cm long whit short petioles. They are whitish at the underneath. The petals are white, pink or reddish and the stamens have a yellow colour. The fruit, the apple can be very varying in its shape and colour but it is usually red at the sunlit side.




(http://linnaeus.nrm.se/flora/di/rosa/malus/maludom.html)
Prunus dulcis

Perennial tree of the Rose family – Rosaceae up to 10 m tall. Erect stems of dark cracked bark. Leaves sharp, ovate-lanceolate, toothed at the edge till 12 cm long. Flowers grouped in pairs, pink-white, completely pink or, most infrequently white. Fruit in drupe, whit the mesocarp initially soft, but becoming stiff as it becomes ripe. It comes from Asia originally but is usually cultivated in warm Mediterranean places.



http://www.geocities.com/CapeCanaveral/Hall/1244/fotosprunusdulcis.htm

Fragaria Vesca L. (Strawberry)
Perennial plant of the rose family which sprouts every year. Leaves and flowers spring from almost the ground, both with a similar length. Flowering stems with no leaves holding flowers with five petals, five sepals and numerous stamens. It produces long rooting stolons where new plants may grow. The fruit, which is commonly, know as the strawberry, it is a red small berry (see image of the fruits)

http://www.geocities.com/CapeCanaveral/Hall/1244/fotos6.htm
http://www.geocities.com/CapeCanaveral/Hall/1244/fresafruits.gif


Useful information


In the family Rosaceae there is a species (Rosa canina), which can be useful for your health.
Rosa canina - (Dogrose)
Perennial bush of the Rose family - Rosaceae - up to 2 m tall. Vine shoot like stems, green, pendulous, with strong hooked prickles. Composite leaves, 3- 4 pairs of toothed, oval leaflets. Solitary flowers or in 1-4 corymbs. White or pink, till 4 cm wide with numerous stamens and sepals, which fall before the fruit, is ripe. Fruit 2 cm wide, dark red (Hips). You can find Rosa canina in woods, hedges and by the side of the roads.

Medicinal


Digestive: Dry petals, soaked for 5 minutes in hot water. Take after meals.
Anti- inflammatory: - rose ointment-: According to ancient Greek, the petals had to be soaked with olive oil and wine in the sun.

Eyewash: Pour boiling water over 10 gr. of dry flowers. Put a soaked compress on the eyes.


Vitaminic: Having removed the seeds, which we must be careful of since they are poisonous for our spine, smash the fruit pulp and mix it up in equal parts with sugar to eat it as a marmalade. They are very rich in vitamin C.

Picking and storing: Roots must be picked at the beginning of spring, leaves in late spring and petals before the flower bloom - They must be air dried on a piece of cloth and kept in airtight containers in a dry spot. The hips should be collected in autumn.

(http://www.geocities.com/CapeCanaveral/Hall/1244/medicinalsrosacaninaangles.htm)




Poem

The rose is a rose,

And was always a rose.

But the theory now goes

That the apple’s a rose,

And the pear is, and so’s

The plum, I suppose

… What will next prove a rose


(Robert Frost, ‘The Rose Family’) Kerstin Nordstrom

(http://biodiversity.uno.edu/delta/angio/www/rosaceae.htm) School of Biology



Aristotle University of Thessaloniki


База данных защищена авторским правом ©shkola.of.by 2016
звярнуцца да адміністрацыі

    Галоўная старонка