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Subfamily Rosoideae, Fragaria chiloensis, coast
strawberry, Hwy 101, 3.3 mi. S of Cape Perpetua, OR, 5/8/2007, photo by
G.D. Carr. |
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Subfamily Rosoideae, Fragaria virginiana,
mountain strawberry, Mt. Spokane, WA, 2002. |
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Subfamily Rosoideae, Fragaria sp., strawberry. In the
longitudinal section of the flower note the perigynous zone bearing calyx, distinct
petals, and numerous distinct stamens. Note also the elongated receptacle bearing numerous
distinct pistils that develop into achenes. As fruiting ensues, the individual achenes,
which do not change much in size, become spatially isolated on the surface of the greatly
enlarged receptacle (aggregate accessory fruit). |
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Subfamily Rosoideae, Geum cf. macrophyllum,
large-leaved avens, note profusion of hooked achenes (3rd photo).
Corvallis, OR |
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Subfamily Rosoideae, Potentilla or Geum sp. Note five-parted calyx, 5
distinct petals, numerous distinct stamens on a short perigynous zone, and numerous
distinct pistils maturing into achenes. |
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Subfamily Rosoideae, Rosa californica, wild rose. |
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Subfamily Rosoideae, Rosa nutkana, common wild rose, vic.
Ankenny Natl. Wildlife Refuge, OR, 2002. |
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Subfamily Rosoideae, Rosa sp. |
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Subfamily Rosoideae, Rosa sp., vic Corvallis OR,
July, 2003. |
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Subfamily Rosoideae, Rubus sp., raspberry. Note the
numerous
stamens and the aggregate fruit resulting from coalescence of the numerous pistils. |
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Subfamily Rosoideae, Rubus parviflorus, thimbleberry, Avery Park,
Corvallis, OR, 2002. |
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Subfamily Rosoideae, Rubus pedatus. This species has a very low number of
pistils. |
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Subfamily Rosoideae, Rubus rosaefolius, thimbleberry, Mauritius
raspberry. |
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Subfamily Rosoideae, Rubus
spectabilis, salmonberry, Silver Falls, OR, 2002. |
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Subfamily Rosoideae, Sanguisorba canadensis, Canadian burnet. |
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Subfamily uncertain, Oemleria cerasiformis, indian peach, oso
berry. Unusual genus with five separate pistils but only one or two
developing into drupes. |
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Subfamily Prunoideae, Prunus emarginata,
wild cherry. |
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Subfamily Prunoideae, Prunus sp. Longitudinal section of flower.
Note well developed perigynous zone bearing sepals, petals, and numerous stamens. Note
also the single simple pistil that matures into a drupe. |
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cf. Subfamily Prunoideae |
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Subfamily Spiraeoideae, Luetkea pectinata, partridge feet. Note the 5 pistils
which mature into follicles. |
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Subfamily Spiraeoideae, Spiraea douglasii, Douglass' spirea,
hardhack. Jackson-Frazier Wetlands, Corvallis, OR, Jul 2004. |
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Subfamily Spiraeoideae, Spiraea sp. |
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Subfamily Maloideae, Amelanchier alnifolia,
service berry, Mt. Spokane, WA, 2002. |
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Subfamily Maloideae, Chaenomeles. Longitudinal section of
flower. Note the compound inferior ovary, the 5-branched style, and the epigynous zone
that bears the sepals, petals, and numerous stamens. |
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Subfamily Maloideae, Cotoneaster sp. Corvallis,
OR, Jul 2004. |
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Subfamily Maloideae, Eriobotrya japonica, loquat. Small tree
from China and S. Japan with edible fruits that are eaten raw or cooked or made into
jelly. |
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Subfamily Maloideae, Osteomeles anthyllidifolia, ulei. Note the
typical "rose" flowers and the apple-like fruits from inferior compound ovaries
(literally "bone apples" from the generic name). |
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Subfamily Maloideae, Pyracantha angustifolia, firethorn. 1,2 -
Lyon Arboretum, Honolulu, HI, 2004. |
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Subfamily Maloideae, Raphiolepis umbellata, oriental hawthorn. |
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Subfamily Maloideae |