Rosaceae

{| border="1" cellspacing="0" align="right" cellpadding="2"\n|-\n! bgcolor="lightgreen" | Rosaceae\n|-\n| align="center" |
Rosa arvensis\n|-\n! bgcolor="lightgreen" | \n|-\n|\n{| align="center"\n|-\n| :\n| Plantae\n|-\n| :\n| Magnoliophyta\n|-\n| :\n| Magnoliopsida\n|-\n| :\n| Rosales\n|-\n| :\n| Rosaceae\n|}\n|-\n! bgcolor=lightgreen | Subfamiles\n|-\n|\nRosoideae
\nSpiraeoideae
\nMaloideae
\nAmygdaloideae or Prunoideae\n|}

Table of contents

1 Synonyms and common names 2 Subfamilies 3 References

Synonyms and common names

\nRose family

Subfamilies

\nThe Rosaceae is divided into four subfamilies, mainly on the basis of how the fruit develops:\n* Subfamily Rosoideae: Many small fruits, each of which is an achene or drupelet, and often the fleshy part of the fruit (e.g. strawberry) is the hypanthium or the stalk bearing the carpels.\n* Subfamily Spiraeoideae: A non-fleshy fruit consisting of five capsules.\n* Subfamily Maloideae: Five capsules (called "cores") in a fleshy endocarp, surrounded by the ripened stem tissue. This structure is called a "pome". Apple, pear, quince, hawthorn.\n* Subfamily Amygdaloideae (or Prunoideae): A single drupe with a seam, two veins next to the seam, and one vein opposite the seam. Peach, almond, cherry.

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.
The dear only knows
What will next prove a rose.
You, my love, are a rose,
but were always a rose.\n:::- Robert Frost, "The Rose Family"

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References

\nhttp://www.life.uiuc.edu/plantbio/260/Rosaceae/Rosehome.html as of 2002-05-29 \n